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Diamond Signet Rings

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8.37 ct. Pear Shape Peridot & Diamond, 18k Yellow Brushed Gold Bezel Set Ring
Located in Los Angeles, CA
A large, luscious, lime-green peridot is featured in this ring. It is clean and bright and weighs 8.37 carats. It is bezel set in our signature brushed and engraved 18k yellow gold s...
Category

2010s Diamond Signet Rings

Materials

Diamond, Peridot, 18k Gold, Yellow Gold, Gold

Crest Signet Ring White Diamond Skull Bronze Victorian Style J Dauphin
Located in Los Angeles, CA
Crest Signet Ring White Diamond Skull Bronze Victorian Style J Dauphin J DAUPHIN signature piece " Secret Doors" Hand made in Los Angeles Inspired by Memento Mori, medieval Latin C...
Category

2010s Victorian Diamond Signet Rings

Materials

White Diamond, Bronze

Certified 0.87 Carat Hauynite and Diamond PT 900 Cocktail Designer Ring
Located in Hung Hom, HK
A rare collector's stone found only in Germany's volcanic region known as the Eifel Mountains. Named originally for René Just Haüy (1743-1822), a French pioneer in crystallography, t...
Category

2010s Art Nouveau Diamond Signet Rings

Materials

Diamond, Platinum

Mens Diamond Ring 18 Karat White Gold
Located in Barnsley, GB
Mens Diamond Ring with a sparkling 143 Diamonds set in 18k white gold . You can have any like this custom made too and its a ideal gift. If you need a different size let us know ...
Category

21st Century and Contemporary Contemporary Diamond Signet Rings

Materials

Diamond, 18k Gold, White Gold

Gents Invisible Princess Diamond Square Frame Signet Ring in 14K White Gold
Located in Vienna, VA
Gents Invisible Princess Diamond Square Frame Signet Ring in 14K Gents Invisible Princess Diamond Square Frame Signet Ring 14K White Gold Diamonds Carat Weight: Approx. 0.85ctw Clar...
Category

21st Century and Contemporary Diamond Signet Rings

Materials

Diamond, White Gold, 14k Gold

Vintage 1970's 14k Yellow Gold Nugget Diamond Initial "M" Ring
Located in Los Angeles, CA
Vintage 1970's 14k yellow gold Nugget diamond initial "M" ring Specifications: main stone: 28 ROUND DIAMOND carat total weight: 1.50CTW color: H clarity: VS2-SI2 ...
Category

Late 20th Century Retro Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

Signet Ring Y Initial Evil Eye ID, 14K Yellow Gold with Round D Color Diamonds
Located in New York, NY
A Unique Form of Self-Expression, a Collection of Evil Eye ID Y Letter Signet RIng. Each And Every Nazarique Evil Eye Id Letter Signet Ring Is A Bespoke Creation Made To Order And Pe...
Category

2010s Artisan Diamond Signet Rings

Materials

Diamond, Blue Sapphire, Yellow Gold, 14k Gold, Enamel

Evil Eye ID Signet Ring S Initial, 14k White Gold, Handcrafting Blue Enamel
Located in New York, NY
A Unique Form of Self-Expression, a Collection of Evil Eye ID S Letter Signet RIng. Each And Every Nazarique Evil Eye Id Letter Signet Ring Is A Bespoke Creation Made To Order And Pe...
Category

2010s Artisan Diamond Signet Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold, Enamel

Realistically Formed 9 Carat Gold and Diamond Lion Head Signet Ring
Located in St Helens, GB
A well made unisex ring. Solid 9 carat gold example of a realistically modelled lion head. The eyes and set with a natural diamond, clean and sparkly. 9 carat yellow gold shank and l...
Category

20th Century Contemporary Diamond Signet Rings

Materials

Diamond, Gold

0.25 Carat Round White Diamond 18 Kt White Gold Men's Signet Gentleman Ring
Located in London, GB
Express your individuality with this 0.25 Carat Round Brilliant White Diamond Men's Signet Style ring is set in 18 Karat white Gold. Size UK - O, US - 7 1/2, color H clarity SI1. Thi...
Category

2010s Modern Diamond Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

Men's 14K Yellow Gold 2.0 Cttw Diamond Double Halo Cushion-Shaped Ring
Located in New York, NY
Seal the commitment you made to him or commemorate an unforgettable success with this gold and diamond ring. This eye-catching jewelry features a multi-halo design in a signet silhou...
Category

21st Century and Contemporary Modern Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

Mark Henry 1.08 Carat Paraiba Tourmaline and Diamond Signet Ring, 18 Karat YG
Located in New York, NY
Heralded for their breathtaking and otherworldly hues and yearned for due to their incredible rarity, the Paraiba gemstone is on full display in our Dusted Signet Ring. Set within a ...
Category

21st Century and Contemporary Contemporary Diamond Signet Rings

Materials

Diamond, Tourmaline, Paraiba, 18k Gold, Yellow Gold

4.40 Carat Smooth Pearl Diamond Chic Ring
Located in Hung Hom, HK
Japanese Akoya Peal which measures 4.40 carat is placed along with 0.55 carat of white brilliant round diamond. The ring sits on the fingers gracefully and is surely a hot pick among...
Category

2010s Art Nouveau Diamond Signet Rings

Materials

Diamond, White Diamond, Pearl, 18k Gold, White Gold

Violet Sapphire & Diamond, Yellow Gold Bezel Set Hand Engraved Band Ring
Located in Los Angeles, CA
A beautiful, African-violet color sapphire is showcased in this beautifully engraved 18k yellow gold ring which is one of our signature styles. The sapphire is remarkably brilliant a...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Diamond, White Diamond, Purple Sapphire, Sapphire, Gold, 18k Gold, Yello...

Fantastic 18 Karat White Gold Diamond Skull Ring by Christophe Graber Zurich
Located in Zurich, Zollstrasse
Skull ring in solid 18 K white Gold set with diamonds! This is a unique and bespoke creation by Christophe Graber Zurich, who is internationally known for his mythical creations and ...
Category

2010s Contemporary Diamond Signet Rings

Materials

Diamond, 18k Gold, White Gold

1.00 Carat Round White Diamond 18 KT Yellow Gold Men's Signet Ring
Located in London, GB
1.00 Carat Round White Diamonds Men's Signet Style ring set in 18 Karat Yellow Gold. It has 16 round brilliant cut diamonds which gives the ring square shape. Size UK - T, US - 9 3/...
Category

2010s Modern Diamond Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

Vintage Art Deco Signet Ring circa 1932 Diamond 14 Karat Yellow Gold Jewelry
Located in Torrance, CA
Vintage Art Deco era signet ring (circa 1932), crafted in 14 karat yellow gold. One old European cut diamond is estimated at 0.15 carats (estimated at H-I color and SI2 clarity). ...
Category

Early 20th Century Modern Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

White Diamond Crest Signet Ring Sterling Silver Bronze Unisex J Dauphin
Located in Los Angeles, CA
White Diamond Crest Signet Ring Sterling Silver Bronze J Dauphin can be worn by women or men. Inspired by Queen Mary of Scots ring. Gold signet-ring; engraved; shoulders ornamented ...
Category

2010s Renaissance Diamond Signet Rings

Materials

White Diamond, Silver, Sterling Silver, Bronze

French 1940s 3.60 Carat Diamonds 18 Karat Yellow Gold Tank Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark. Geometrically shaped, this imposing tank ring is set with an antique step-cut diamond, supported by two triangle-shaped motifs set ...
Category

1940s Retro Vintage Diamond Signet Rings

Materials

Diamond, White Diamond, Yellow Gold, Gold, 18k Gold

Emerald Cut Black Diamond Ring in 14 Karat Yellow Gold
Located in Foxborough, MA
Black diamond ring with a beautiful 7x5mm emerald cut black diamond center stone in 14k yellow gold. This piece has a beautiful satin halo with a split band. One of a kind size 8.
Category

2010s Artist Diamond Signet Rings

Materials

Black Diamond, Emerald, 14k Gold, Yellow Gold

14 Karat Rose Gold 0.02 Carat Diamond Pink Signet Ring
Located in Great neck, NY
Add this precious Diamond Signet ring to your look! Crafted of 14K gold and available in Yellow, Rose & White Gold, this ring features 0.02 carats of Natural Round Diamonds. Its a pi...
Category

21st Century and Contemporary Contemporary Diamond Signet Rings

Materials

Diamond, 14k Gold, Rose Gold

Vintage Masonic 14 Karat Yellow Gold Ring with Diamond Accent
Located in St. Louis Park, MN
This vintage Masonic ring is lovely and classic. It features a Diamond accent. The ring is stamped "14k" and "S Wood". Face measures: approximately 1" long x 1/2" wide Size: 10 -...
Category

20th Century Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

1.94 ct. t.w. Pave Set Diamond 18k Yellow Gold Oval Platform Wide Band Ring
Located in Los Angeles, CA
This large and lovely ring is sure to pack a punch! It is a bold statement in 18k yellow gold, set with sparkling round brilliant cut diamonds pave set in a dramatic oval pattern. Th...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold, Gold

Colombian Emerald and Diamond Ring 18 Karat White Gold
Located in Brunswick, ME
Estate Dome ring centering an emerald pear cut natural Colombian Emerald weighing 0.80 carat, flanked by 0.20 carats of baguette diamonds H-SI. All set in 18K white gold. The face of...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Diamond, White Diamond, Emerald, White Gold, 18k Gold

10 Karat Ornate Diamond Monogrammed "S" Ring
Located in Palm Desert, CA
10 Karat Ornate Diamond Monogrammed "S" Ring. The ring features a scrolling design with a single round 0.001 diamond prong-set with a starburst cut design. Engraved on the bottom of ...
Category

1980s Retro Vintage Diamond Signet Rings

Materials

Diamond, Yellow Gold, 10k Gold, Gold

Signet Silver Ring Dear Head Engraved Trillion and Baguette Diamond
Located in Berkeley, CA
Traditional shape of a signet ring, with the particularity of the hammered texture in silver and set with diamonds. The two baguettes diamonds are 0.10 carats TW on the sides of the ...
Category

2010s Medieval Diamond Signet Rings

Materials

Diamond, Sterling Silver

Vintage 18 Karat White Gold Ring with Natural Blue Sapphire and Diamonds
Located in Braintree, GB
Vintage 18k white gold ring with natural blue sapphire and diamonds. Hallmarked 18k Circa 1970's Dimensions - Finger Size: (UK) = Q (US) = 8 1/2 (EU) = 57 1/2 Size : 2.8 x 2.1 x 1.7...
Category

1970s Vintage Diamond Signet Rings

Materials

Diamond, Blue Sapphire, 18k Gold

Diamonds Signet 9 Karat White Gold Ring Handcrafted in Italy by Botta Gioielli
Located in Milano, IT
Round signet ring in 9 karat white gold with one central rose cut diamond surrounded by 16 brilliant cut diamonds. US finger size is 6 3/4, French size 54, Italian size 14, the ring...
Category

21st Century and Contemporary Modern Diamond Signet Rings

Materials

Diamond, 9k Gold, White Gold

Old Cut Diamond Ruby 14 Karat Gold Retro Textured Men's Ring
Located in Miami, FL
Embellish your own or your loved one hands with this elegant men signet Vintage Ring! Crafted in Solid 14K Yellow Gold, The center diamond is an Old Cut Round Diamond of 0.95 cts, ...
Category

1950s Retro Vintage Diamond Signet Rings

Materials

Diamond, Ruby, 14k Gold

Crest Signet Skull Ring Memento Mori Style Gold Black Diamond J Dauphin
Located in Los Angeles, CA
Crest Signet Skull Ring Memento Mori Style Gold 6 Gem Black Diamond J Dauphin Hand made in Los Angeles Made to order in Us size 4-12 Inspired by Memento Mori, medieval Latin Chris...
Category

2010s Victorian Diamond Signet Rings

Materials

Black Diamond, Gold, 14k Gold

Vintage 32nd Degree Scottish Rite Ring, 14K Gold and Platinum Masonic Dia .42ct
Located in Greensboro, NC
Crafted in 14k yellow gold, this vintage 32nd degree Scottish Rite ring features a platinum double-headed eagle displaying a radiant diamond solitaire. The ring’s shoulders showcase ...
Category

20th Century Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold, Enamel

Diamond, Onyx and Coral Signet Ring in 14K Yellow Gold
Located in Boca Raton, FL
Diamond, Onyx and Coral Signet Ring in 14K Yellow Gold. (56) Round Brilliant Cut Diamonds weighing 1.20 carat total weight G-H in color and VS in clarity are expertly set. The Ring...
Category

2010s Diamond Signet Rings

Materials

Coral, Diamond, Onyx, 14k Gold, Yellow Gold

18 Karat White Gold Diamond Cocktail Ring
Located in Monte-Carlo, MC
18K white gold cocktail ring is from Dentelle Collection. This classy piece of jewellery is made of natural white diamonds in total of 1.64 Carat. Total metal weight is 6.50 gr. Perf...
Category

2010s Contemporary Diamond Signet Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

White Diamond Black Diamond Crest Signet Skull Ring J Dauphin
Located in Los Angeles, CA
3 White Diamond 3 Black Diamond Crest Signet Skull Ring Memento Mori Style Bronze J Dauphin Hand made in Los Angeles Made to order in Us size 4-12 Inspired by Memento Mori, mediev...
Category

2010s Victorian Diamond Signet Rings

Materials

White Diamond, Black Diamond, Bronze

Emerald White Diamond Crest Signet Ring Memento Mori Sterling Silver Skull
Located in Los Angeles, CA
Crest Signet Skull Ring Memento Mori Style Sterling Silver Emerald White Diamond J DAUPHIN signature piece " Secret Doors" Hand made in Los Angeles Made to order in Us size 3-12 I...
Category

2010s Victorian Diamond Signet Rings

Materials

White Diamond, Emerald, Sterling Silver, Silver

Diamond and Princess Cut Blue Sapphire Grid 18 Karat Gold Hexagon Men's Ring
By BOON
Located in Bangkok, TH
Diamond and Princess Cut Blue Sapphire Grid 18 Karat Gold Hexagon Men's Ring Please let us know upon checkout should you wish to have the ring resized. Ring size: US 7, UK N Gold:...
Category

Late 20th Century Diamond Signet Rings

Materials

Diamond, Blue Sapphire, 18k Gold, Yellow Gold, Gold

Vintage Diamond and 9 Carat Chunky Ring
Located in Chipping Campden, GB
At the centre of this gorgeous star setting sits a stunning diamond. The stone measures pts and is bright with a wonderful sparkle. the whole style of the ring is chunky and has groo...
Category

1950s Modern Vintage Diamond Signet Rings

Materials

Diamond, 9k Gold

Fancy Vivid Yellow 6.42 Carat 18 K Gold Almost 16 Grams Sun Ray Ring
Located in Hung Hom, HK
6.42 Carat of Fancy Intense to Fancy Vivid Yellow Diamond are set in 18K Gold in this Sun Ray Ring. Almost 16 grams of 18 K gold is used to set this 6.42 carat of natural fancy color...
Category

2010s Art Nouveau Diamond Signet Rings

Materials

Diamond, Yellow Diamond, 18k Gold

Victorian Enamel Diamond Silver-Topped 14 Karat Gold Crown Ring
Located in Philadelphia, PA
Oval statement ring depicts two gold crowns with a silver laurel motif Surrounded by ultramarine blue enamel - exhibiting no loss With a rose cut diamond halo and cathedral shoulde...
Category

1870s Victorian Antique Diamond Signet Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Silver, Enamel

8.15 Carat Peridot Cushion, Diamond, Yellow and White Gold Bezel Signet Ring
Located in Los Angeles, CA
This handsome 18k gold ring features a beautifully crystalline, 8.15 carat cushion-cut peridot with gorgeous, bright green color. Four sparkling, brilliant cut white diamonds set in ...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Diamond, Peridot, 18k Gold, Yellow Gold, Gold, White Gold

Crest Signet Skull Ring Black Diamond Victorian Style Bronze J Dauphin
Located in Los Angeles, CA
Crest Signet Skull Ring Black Diamond Victorian Style Bronze J Dauphin Hand made in Los Angeles Made to order in Us size 4-12 Inspired by Memento Mori, medieval Latin Christian the...
Category

2010s Victorian Diamond Signet Rings

Materials

Black Diamond, Bronze

Wendy Brandes 2-in-1 Turquoise and Carnelian Flip Ring, Earrings 18K Gold Set
Located in New York, NY
Swivel signet-style ring with turquoise center that flips over to reveal carnelian on the opposite side. 18K yellow gold, satin finish. Diamond accents. Size 6 (please inquire for re...
Category

2010s Contemporary Diamond Signet Rings

Materials

Carnelian, Diamond, White Diamond, Turquoise, 18k Gold, Yellow Gold

4.78 Carat Amethyst Square Cushion, Yellow Gold Bezel Engraved Signet Band Ring
Located in Los Angeles, CA
This beautiful ring features a lovely lavender color amethyst that has been set in a handmade 18k yellow gold bezel. The cushion-shaped gemstone has beautifully rich color and is acc...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Amethyst, Diamond, 18k Gold, Yellow Gold, Gold

11.28 ct. Green Tourmaline Cabochon, Diamond, Yellow Bezel Dome Band Ring
Located in Los Angeles, CA
This stunning ring features a beautiful 11.28 carat tourmaline cabochon of saturated, pine-green color. The tourmaline is translucent with excellent clarity. Two brilliant cut diamon...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold

Ladies Platinum Ethiopian Opal '3.14 Carat' Ring with Diamonds
Located in Braintree, GB
Ladies platinum Ethiopian opal ring with diamonds. Stamped 3.14 indicating weight of fire opal, totalling 3.14 carats. Stamped 0.51 indicating total weight of diamonds totalling 0.51...
Category

1990s Diamond Signet Rings

Materials

Diamond, Opal, Platinum

1.1 Carat Marquise Shape Diamond and Black Onyx Signet Solitaire Ring
Located in Bangkok, Thailand
An art-deco inspired, statement 1.1 carat marquise shaped White Diamond, set in a custom cut Black Onyx ring - currently sized at US 6.5, can be customized and remade according to ri...
Category

21st Century and Contemporary Art Deco Diamond Signet Rings

Materials

Diamond, Onyx

15 Carat Yellow Gold Old Mine Cut and Seed Pearl Vintage Ring
Located in Hamilton, AU
Carefully crafted in 15 Carat rose gold is this ever so sweet rings features a bright star set old mone cut diamond in the centre and is embellished with seed pearls either side. We ...
Category

Early 20th Century Victorian Diamond Signet Rings

Materials

Diamond, Pearl, Yellow Gold, 15k Gold

Vintage French 2.70 Carat Diamond and Yellow Gold Signet Style Ring Circa 1960
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage French 2.70 carat diamond and 18 karat yellow gold, 18 karat white gold set gent's dress ring; part of our diverse vintage jewelry collections...
Category

1960s Vintage Diamond Signet Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

14 Karat Yellow and White Gold Name Alison Signet Ring with Diamonds
Located in Stamford, CT
14 Karat Yellow and White Gold Name Alison Signet Ring with Diamonds Many name rings available simply ask for the name you are looking for and we will inform you should we have it in...
Category

2010s Contemporary Diamond Signet Rings

Materials

Diamond, 14k Gold

Vintage Diamond and 18 Carat Gold Signet Ring
Located in Chipping Campden, GB
This gorgeous chunky signet ring holds an old mine cut diamond which measures 65pts and is set within a decorative ribbed setting. Made in London, England. Ring Size: N 1/2 or 7 Wi...
Category

1950s Modern Vintage Diamond Signet Rings

Materials

Diamond, Gold

Crest Signet Skull Ring Memento Mori Style Silver Emerald Black Diamond
Located in Los Angeles, CA
Crest Signet Skull Ring Memento Mori Style Silver Emerald Black Diamond J Dauphin J DAUPHIN signature piece " Secret Doors" with 3 Emeralds and 3 Black Diamond Hand made in Los Ang...
Category

2010s Victorian Diamond Signet Rings

Materials

Black Diamond, Emerald, Silver

28.55 ct. Spessartite Garnet Cabochon, Diamond Yellow Gold Bezel Dome Ring
Located in Los Angeles, CA
Big, bright, and beautiful! This gorgeous ring features a rare, giant, mandarin orange spessartite garnet cabochon that is so perfect, it looks like a piece of candy! It is bezel set...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

White Diamond, Diamond, Garnet, 18k Gold, Yellow Gold, Gold

Vintage 1970's 14k Yellow Gold Nugget Diamond Initial "S" Ring
Located in Los Angeles, CA
Vintage 1970's 14k yellow gold Nugget diamond initial "S" ring Specifications: main stone: 18 ROUND DIAMOND carat total weight:.85TW color: H clarity: VS2-SI1 ...
Category

Late 20th Century Retro Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

White Diamond Crest Signet Ring Sterling Silver Bronze Unisex J Dauphin
Located in Los Angeles, CA
3 pcs White Diamond Crest Signet Ring Sterling Silver Bronze J Dauphin can be worn by women or men. Inspired by Queen Mary of Scots ring. Gold signet-ring; engraved; shoulders ornam...
Category

2010s Renaissance Diamond Signet Rings

Materials

White Diamond, Silver, Sterling Silver, Bronze

Green Tourmaline Cabochon, Diamond, Yellow Gold Bezel Engraved Band Ring
Located in Los Angeles, CA
A large, rich 14.01 carat teal green tourmaline cabochon is the focal point of this custom-made signature ring, specially designed for this lovely gem. The tourmaline cabochon is bez...
Category

21st Century and Contemporary Artisan Diamond Signet Rings

Materials

White Diamond, Tourmaline, Diamond, 18k Gold, Yellow Gold, Gold

Square Faced 22 Karat Yellow Gold Men's Ring with Diamonds
Located in Bangkok, TH
Square Faced 22 Karat Yellow Gold Mens Ring with Diamonds Please let us know upon checkout should you wish to have the ring resized. Ring size: US 7.5, UK O Diamond: 1.35ct. Gold:...
Category

Late 20th Century Diamond Signet Rings

Materials

Diamond, 22k Gold, Yellow Gold

Effy Men's Diamond 14 Karat Yellow Gold Signet Ring
By Effy
Located in Boca Raton, FL
Men's diamond signet ring by Effy fashioned in 14 karat yellow gold. The ring features a round brilliant cut diamonds weighing .11 carats and graded H-I color and SI clarity. The rin...
Category

21st Century and Contemporary Modern Diamond Signet Rings

Materials

Diamond, 14k Gold, Yellow Gold

White Diamond Crest Signet Ring Sterling Silver Bronze Unisex J Dauphin
Located in Los Angeles, CA
White Diamond Crest Signet Ring Sterling Silver Bronze J Dauphin can be worn by women or men. Inspired by Queen Mary of Scots ring. Gold signet-ring; engraved; shoulders ornamented ...
Category

2010s Renaissance Diamond Signet Rings

Materials

White Diamond, Silver, Sterling Silver, Bronze

Antique and Vintage Diamond Jewelry and Watches

Diamonds and antique diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “Diamonds Are Forever” to “Diamonds are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim the stone for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education. Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamonds value decreases if there are many blemishes or inclusions), color (the less color the higher the grade, cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better). When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty.

Shop antique and designer diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.