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Blue Boulder Opal

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Dalben Light Blue Boulder Opal Rose Gold Ring
By Oreste Dalben
Located in Como, IT
navette shape Australian Boulder Opal . Ring size 7 1/4 - EU 55 re-sizable . Bezel setting dimension
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

Blue Boulder Opal ring Avatar Unisex natural opal ring Genuine opal jewelry
Located in Berlin, DE
Amazing silver ring with natural blue and green Boulder Opal Opal origin - Queensland, Australia
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Deep Blue Boulder Opal 22k Chain One of a Kind ID Bracelet, Lola Brooks 2022
Located in Dallas, TX
gold showcasing a phenomenal 11.75 carat deep blue solid Australian Boulder Opal with fantastic neon
Category

21st Century and Contemporary American Contemporary Link Bracelets

Materials

Opal, Gold, 22k Gold, Yellow Gold

Boulder Opal 18K Gold Silver Ring Natural Blue opal gemstone gift for wife
Located in Berlin, DE
Matte finish silver 18K gold plated ring with fine quality blue Boulder Opal gemstone origin
Category

2010s German Artist Cocktail Rings

Materials

Opal, Gold Plate, Silver, 18k Gold

Lauren Harper Boulder Opal, Diamond, Gold Statement Necklace
By Lauren Harper
Located in Winnetka, IL
Vibrant blue Boulder Opal doublets are surrounded by 18kt Yellow gold and Diamonds in feminine and
Category

2010s Unknown Artist Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Lauren Harper Boulder Opal, Diamond, Gold Statement Necklace
Lauren Harper Boulder Opal, Diamond, Gold Statement Necklace
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W 1.26 in D 0.12 in L 3.98 in
Australian 0.93ct Boulder Opal & 18k Gold Necklace
Located in MAIN BEACH, QLD
A bright green and blue boulder opal at its heart, this cute and quirky pendant makes for the
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

Australian 0.93ct Boulder Opal & 18k Gold Necklace
Australian 0.93ct Boulder Opal & 18k Gold Necklace
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W 0.63 in D 0.13 in L 0.86 in
Boulder Pear Opal Tourmaline Diamond Yellow Gold Enhancer Pendant
Located in Stamford, CT
Opal, diamond and tourmaline pendant enhancer. Pear shaped multi color Boulder Opal mounted in a
Category

21st Century and Contemporary Necklace Enhancers

Materials

Diamond, Opal, Tourmaline, Gold, 14k Gold, Yellow Gold

Boulder Opal, Aquamarine and 18kt Gold Earrings by Lauren Harper
By Lauren Harper
Located in Winnetka, IL
These stunning blue Boulder Opal center stones have such depth of color they catch the eye from
Category

2010s North American Artisan Dangle Earrings

Materials

Aquamarine, Opal, Gold, 18k Gold, Yellow Gold

Natural Untreated Australian 13.16ct Boulder Opal Cufflinks in 18K Yellow Gold
By Renata Bernard
Located in Sydney, AU
"The Godfather" opal cufflinks present gorgeous vivid blue boulder opals (13.16ct) sourced from
Category

2010s Australian Contemporary Cufflinks

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Australian 19.06ct Boulder Opal, Diamond, 18k Gold & Platinum Bracelet
Located in MAIN BEACH, QLD
diamonds, but it also features a stunning blue boulder opal with the colours of a tropical sea. An amazing
Category

1990s Australian Bangles

Materials

Diamond, Opal, 18k Gold, Platinum

Precious White Opal & Boulder Opal "Heartbreak" Earrings in 18K Gold w Diamonds
By Eytan Brandes
Located in Sherman Oaks, CA
Two opals -- one a lively precious white opal, and the other a stormy dark blue boulder opal
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, Opal, Black Opal, Gold, 18k Gold, Yellow Gold

52.38ct Boulder Opal 22k Gold Handmade Chain Pendant Necklace, Lola Brooks, 2022
Located in Dallas, TX
gold featuring an extraordinary, rare 52.38 carat tear drop shaped blue boulder opal with phenomenal
Category

2010s American Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold, 22k Gold

Boulder Opal Gold Pendant Light Blue Australian Opal
Located in Berlin, DE
Australian Opal yellow gold pendant opal origin - Australia opal measurements - 0.59 х 1.1 in / 15
Category

2010s French Artisan Pendant Necklaces

Materials

Opal, Gold, Yellow Gold

Boulder Opal Gold Pendant Light Blue Australian Opal
Boulder Opal Gold Pendant Light Blue Australian Opal
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H 1.42 in W 0.59 in L 1.1 in
Boulder Opal Silver Pendant Blue Australian Gemstone
Located in Berlin, DE
Silver pendant Boulder Opal opal origin - Australia opal measurements - 0.24 x 0.79 x 1.46 in / 6
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Boulder Opal Silver Pendant Blue Australian Gemstone
Boulder Opal Silver Pendant Blue Australian Gemstone
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H 1.97 in W 0.79 in D 0.24 in L 1.46 in
Opal Ring Yellow Gold Electric Blue Natural Boulder Australian opal
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 9.26 carats
Category

2010s French Artisan Engagement Rings

Materials

Opal, 14k Gold, Yellow Gold

Opal Ring Yellow Gold Navy Blue Natural Boulder Australian Opal
By Alexey Gabilo
Located in Berlin, DE
14K yellow gold ring with natural Boulder Opal opal origin - Australia opal weight - 9.26 carats
Category

2010s French Artisan Engagement Rings

Materials

Opal, 14k Gold, Yellow Gold

Opal necklace silver Blue Boulder Natural Australian Gemstone
Located in Berlin, DE
Matte finish silver pendant with natural Boulder "Koroit" Opal gemstone origin - Australia
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Silver

Opal necklace silver Blue Boulder Natural Australian Gemstone
Opal necklace silver Blue Boulder Natural Australian Gemstone
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H 1.57 in W 0.67 in D 0.32 in L 1.18 in
Dalben Blue Rectangular Boulder Opal Yellow Gold Ring
By Oreste Dalben
Located in Como, IT
wonderful rectangular Boulder Opal. This Australian Boulder Opal has the seabed colors Ring size 7 1/4
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Gold, Yellow Gold

Dalben Blue Green Boulder Opal Yellow Gold Ring
By Oreste Dalben
Located in Como, IT
Australian Boulder Opal rhombus shape weight 4,63 carats . Ring size US 7 - EU 54+ re-sizable . Bezels
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Yellow Gold

Dalben Blue Green Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
Boulder Opal weight 5,38 carats . Ring size US 6 - EU 52 re-sizable . Bezels setting dimension
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Yellow Gold, Gold

Boulder Opal, Sapphire and Tsavorite Pendant on a Beaded Boulder Opal Necklace.
By Kary Adam
Located in Coupeville, WA
Australian Boulder Opal surrounded by Blue & Yellow Sapphires and Tsavorite Garnet. A Gold Plated T-Bar
Category

2010s American Contemporary Beaded Necklaces

Materials

Opal, Sapphire, Tsavorite, Silver

Boulder Opal, Sapphire and Tsavorite Pendant on a Beaded Boulder Opal Necklace.
Boulder Opal, Sapphire and Tsavorite Pendant on a Beaded Boulder Opal Necklace.
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H 16 in W 0.75 in D 0.5 in Dm 0.75 in L 1.5 in
Boulder Opal Pendant Colorful Blue Natural Australian Gemstone Unisex
Located in Berlin, DE
Silver pendant with natural Boulder Opal gemstone origin - Australia gem size is 0.16 x 0,51 x
Category

2010s German Artist Pendant Necklaces

Materials

Opal, Silver

Boulder Opal Pendant Colorful Blue Natural Australian Gemstone Unisex
Boulder Opal Pendant Colorful Blue Natural Australian Gemstone Unisex
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H 1.22 in W 0.51 in D 0.16 in L 0.94 in
3 Australian Boulder Opal Cabochons
By Kary Adam
Located in Coupeville, WA
A collection of 3 Australian Boulder Opals with intense blue and green ripple effects as they move
Category

2010s Australian Artisan More Jewelry

Materials

Opal

Boulder Opal necklace silver Natural Australian Blue Green Gemstone
Located in Berlin, DE
Silver pendant with natural Boulder Opal opal origin - Australia opal measurements - 0.16 x 0.75 x
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Boulder Opal necklace silver Natural Australian Blue Green Gemstone
Boulder Opal necklace silver Natural Australian Blue Green Gemstone
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H 1.2 in W 0.75 in D 0.16 in L 0.75 in
Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
Located in BELCONNEN, ACT
A lovely oval Australian boulder opal with darker green and blue colors. This natural solid
Category

Antique 15th Century and Earlier Australian Pendant Necklaces

Materials

Opal

Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
Natural 11.13 Ct Green-Blue Oval Australian Boulder Opal
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W 0.56 in D 0.15 in L 0.78 in
Dalben Blue Green Australian Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
magnificent Queensland mine Australian boulder opal . The Australian Boulder Opal have deep blue and green
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Yellow Gold

Dalben Blue Green Square Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
Australian Boulder Opal square shape weight 6,89 carats . Ring size US 6 3/4 + - EU 54 re-sizable
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Yellow Gold

Boulder Opal Silver Earrings Dangle Navy Blue Delphinium Ariel Style
Located in Berlin, DE
Silver earrings with natural Boulder Opal opal origin - Australia boulder opal measurements - 0.2
Category

2010s German Artist Lever-Back Earrings

Materials

Opal, Silver

Boulder Opal Silver Earrings Dangle Navy Blue Delphinium Ariel Style
Boulder Opal Silver Earrings Dangle Navy Blue Delphinium Ariel Style
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H 1.93 in W 0.55 in D 0.2 in L 1.1 in
Boulder Opal black silver necklace Grey Blue Natural Australian Gemstone
Located in Berlin, DE
Black patina silver necklace with natural Boulder Opal gemstone origin - Australia opal weight
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Boulder Opal black silver necklace Grey Blue Natural Australian Gemstone
Boulder Opal black silver necklace Grey Blue Natural Australian Gemstone
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H 2.36 in W 1.14 in D 0.24 in L 1.5 in
15.44ctw Rich Purple Blue Australian Boulder Opal Ring Platinum R6723
Located in Osprey, FL
♥ Rich Purple Blue Australian Boulder Opal Ring Platinum ♥ The face of the ring measures 18.9mm in
Category

2010s American Engagement Rings

Materials

Opal, Platinum

24.11ct Natural Solid Untreated Black Boulder Opal
Located in MAIN BEACH, QLD
Once-in-a-lifetime gem, this Australian black boulder opal has no equal. With its stunning ribbon
Category

2010s Australian Loose Gemstones

Materials

Opal, Black Opal

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A simple yet classy platinum ring featuring a 9.47 carat Australian boulder opal. The opal has
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Opal, Platinum

Dalben Design Blue Green Australian Boulder Opal Yellow Gold Ring
By Laura Dalben
Located in Como, IT
lovely Blue-green Australian Boulder Opal . This Australian Boulder Opal has the seabed colors Ring
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, 18k Gold, Gold, Yellow Gold

Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
A large and impressive boulder opal from the famous opal fields of Australia. This particular opal
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Platinum

Boulder Opal Scratched Silver Ring Neon Dark Blue Stone Jewelry
Located in Berlin, DE
Scratched gold plated silver ring with natural Boulder Opal opal origin - Australia opal
Category

2010s German Modern Fashion Rings

Materials

Opal, Gold Plate, Silver, Sterling Silver

Australian Boulder Opal Diamond Platinum Ring
Located in Beverly Hills, CA
A lovely platinum ring featuring a 1.46 carat boulder opal from Australia. It has great play of
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Platinum

Boulder Opal Silver Pendant Blue Natural Australian Gemstone Valentines day gift
Located in Berlin, DE
Silver pendant with Boulder Opal gemstone origin - Australia opal weight - 12.25 carat pendant
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Silver

Large Australian Boulder Opal Red Green Blue Gemstone Ivy Silver Ring
By Alexey Gabilo
Located in Berlin, DE
Natural boulder Opal ring in blackened and gold plated silver Opal origin - Australia Opal
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Large Boulder Opal Ring silver Green Blue Australian Gemstone unisex vintage
Located in Berlin, DE
Large matte finish silver ring with natural Boulder Opal opal origin - Australia opal weight
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Silver

Big Boulder Opal Silver Ring Chunky Cabochon Turquoise Blue Brown Gemstone
Located in Berlin, DE
Big silver ring with natural Boulder Opal gemstone origin - Australia gemstone weight - 23.40
Category

2010s German Artisan Cocktail Rings

Materials

Opal, Turquoise, Silver

Boulder Opal Scratched Silver Ring Neon Deep Blue Natural Gem Unisex
Located in Berlin, DE
Silver ring with natural Boulder Opal opal origin - Australia ring weight - 7.16 grams ring size
Category

2010s French Artisan Fashion Rings

Materials

Opal, Silver, Sterling Silver

Lauren Harper Boulder Opal Diamond Gold Necklace
By Lauren Harper
Located in Winnetka, IL
This boulder opal doublet and .68cts Diamond necklace is delicate yet bold. Colorful flashes of
Category

2010s Artist Choker Necklaces

Materials

Diamond, Opal, 18k Gold

Lauren Harper Boulder Opal Diamond Gold Necklace
Lauren Harper Boulder Opal Diamond Gold Necklace
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W 2.21 in D 0.08 in L 1.11 in
Australian 20.05ct Boulder Opal, Diamond & Platinum Necklace
Located in MAIN BEACH, QLD
Drawn to this amazing piece? It is hard not to be. A very special blue green boulder opal with
Category

2010s Australian Pendant Necklaces

Materials

Diamond, Opal, Platinum

Dalben light blue and pink Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
magnificent Queensland mine Australian boulder opal . The Australian Opal have blue , pink and green spots
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Rose Gold, Gold, 18k Gold

Modern Boulder Opal & Diamond Pendant Circa 1980s
Located in ADELAIDE, SA
opal, (18mm x 16mm x 3.1mm) freeform, solid boulder flat cabochon with mild green on blue colour
Category

Vintage 1980s Australian Modern Pendant Necklaces

Materials

Diamond, Opal, 14k Gold

Dalben Australian Boulder Opal Rose Gold Earrings
By Laura Dalben
Located in Como, IT
Australian boulder opal weight 7,85 carats . The australian boulder opals have an intense deep green blue
Category

21st Century and Contemporary Italian Contemporary Lever-Back Earrings

Materials

Opal, 18k Gold, Rose Gold, Gold

Dalben Australian Boulder Opal Rose Gold Earrings
By Laura Dalben
Located in Como, IT
set Australian Boulder Opals weighing 12 carats. max width 16 mm height without leverback 34 mm
Category

21st Century and Contemporary Italian Contemporary Dangle Earrings

Materials

Opal, Gold, 18k Gold, Rose Gold

Dalben Australian Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
boulder opal The Australian Opal have pink , blue and green spots. Ring size US 6 3/4 - EU 54 re
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Gold, 18k Gold, Rose Gold

Art Nouveau Boulder Opal Pearl & Sapphire Necklace
Located in Santa Barbara, CA
Weight: 14.50 Carats Pear shaped boulder opal; Displaying dominant flashes of red, blue, purple & green
Category

Antique 1890s Art Nouveau Pendant Necklaces

Materials

Opal, Pearl, Sapphire, 18k Gold, Yellow Gold

Dalben Trilogy Boulder Opal Rose Gold Ring
By Laura Dalben
Located in Como, IT
Boulder Opals weight 4,34 carats . Ring size US 7 1/4 - EU 55 re-sizable . Bezels setting dimension
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Rose Gold, Gold, 18k Gold

24.95ct Purple-Blue Freeform Boulder Opal Pendant set in 10k Yellow Gold
Located in Toronto, Ontario
We have for you this stunning Boulder Opal Pendant set in a 10k Yellow Gold. This pendant is made
Category

2010s Canadian Contemporary Pendant Necklaces

Materials

Opal, Yellow Gold

Australian Boulder Opal Diamond Gold & Platinum Pendant
Located in Beverly Hills, CA
A stylish pendant featuring a natural Australian boulder opal set in a two-tone gold and platinum
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Gold, 18k Gold, Platinum

Australian 8.01ct Boulder Opal, Emerald & 18K Gold Brooch
Located in MAIN BEACH, QLD
from solid 18K gold with gorgeous blue-green boulder opal back and green emeralds for eyes. A timeless
Category

Late 20th Century Australian Brooches

Materials

Opal, Emerald, Black Opal, Diamond, 18k Gold

Australian Boulder Opal Diamond Platinum Gold Ring
Located in Beverly Hills, CA
A superb boulder opal from Australia with bright flashes of color. The opal weighs 9.61 carats and
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Opal, Gold, 18k Gold, Yellow Gold, Platinum

14.51 Carat Australian Boulder Opal Diamond Platinum Pendant
Located in Beverly Hills, CA
A true gem opal from Australia, this fine boulder opal rivals the best black opals at a fraction of
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, Platinum

16.92 Carat Australian Boulder Opal & 18k Gold Earrings
Located in MAIN BEACH, QLD
gold earrings with amazing vivid-coloured boulder opal. Get ready to talk about these a lot, everyone
Category

2010s Australian Dangle Earrings

Materials

Opal, 18k Gold

Big Opal Boulder Australian Fine gemstone Freeform 47 ct Neon Blue SSEF cert
By Alexey Gabilo
Located in Berlin, DE
Boulder Opal from Queensland, Australia is one of the rarest gemstones on earth. Spectacular in
Category

2010s Australian Artisan Pendant Necklaces

Materials

Opal

14.22 Carat Boulder Opal and Diamond Ballerina Ring
Located in Coral Gables, FL
Platinum Ballerina Ring Featuring A 14.22 Carat Oval Boulder Opal with Stunning Blue and Green
Category

Late 20th Century Japanese Cocktail Rings

Materials

Diamond, Opal, Platinum

Dalben Australian Boulder Opal Yellow Gold Dangle Earrings
By Oreste Dalben
Located in Como, IT
- green bezel set Australian Boulder Opals weighing 9,6 carats. max width 11-12 mm height without
Category

21st Century and Contemporary Italian Contemporary Dangle Earrings

Materials

Opal, 18k Gold, Yellow Gold

Dalben Very Long Boulder Opal Rose Gold Ring
By Oreste Dalben
Located in Como, IT
carats bezel-set blue Australian Boulder Opal. The Australian Boulder Opal has the deep blue green colors
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Opal, Rose Gold, Gold, 18k Gold

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Blue Boulder Opal For Sale on 1stDibs

Surely you’ll find the exact blue boulder opal you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. Our collection of these items for sale includes 1 vintage editions and 37 modern creations to choose from as well. Finding the perfect blue boulder opal may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but 5.5 Carat and 6 Carat versions are of considerable interest. There have been many well-made iterations of the classic blue boulder opal over the years, but those made by Laura Dalben, Oreste Dalben and Jennifer Kalled are often thought to be among the most beautiful. A cabochon version of this piece has appeal, but there are also round cut and rough cut versions for sale. Most of our blue boulder opal for sale are for women, but there are 8 pieces available to browse for men.

How Much is a Blue Boulder Opal?

Prices for a blue boulder opal can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $895 and can go as high as $21,000, while this accessory, on average, fetches $4,635.
Questions About Blue Boulder Opal
  • 1stDibs ExpertAugust 17, 2021
    An Australian boulder opal is an opal mined from a large ironstone boulder under the ground. This type of opal is the second most valuable opal behind the black opal. Spot an Australian boulder opal by checking for a solid layer of brown ironstone left on the back of the stone. Shop Australian boulder opals on 1stDibs.