Skip to main content
  • Video Loading
  • Want more images or videos?
    Request additional images or videos from the seller
1 of 19

1940s French Sapphire Diamond 18 Karat Yellow Gold Platinum Duo Tank Ring



Ring in 18 karat yellow gold, eagle's head hallmark and platinum, dog's head hallmark. Called the tank bridge ring, this superb antique ring features an antique cushion- cut diamond on top and a natural blue cushion- cut sapphire. It has a spring ring inside to prevent the ring from turning on the thin fingers which can be removed in case of resize. Total weight of unheated, untreated natural sapphire: approximately 1 carat. Total diamond weight : approximately 0.70 carat. Height : 11.8 mm, Width : 18.7 mm, Thickness : 9 mm approximately, Width of the base of the ring : 5.1 mm. Total weight of the jewel : approximately 8 g. US Size : 7 ; Free resize, please contact us. Antique jewel - French work from the 1940s. Our opinion : An original sapphire diamond tank ring adorned with a beautiful sapphire.


  • Metal
  • Stone
  • Stone Cut
  • Style
  • Place of Origin
  • Period
  • Date of Manufacture
    Circa 1940s
  • Condition
    Polished. Wear consistent with age and use. This jewel has been verified, checked and re-polished by our workshop. We guarantee all our jewelry. This jewel will be delivered with a certificate of authenticity drawn up by our expert certified antique jewelry.
  • Seller Location
    Poitiers, FR
  • Reference Number
    Seller: 20-3101stDibs: LU404210374502

Shipping & Returns

  • Shipping
    Free Standard Shipping
    to anywhere in the world, arrives in 1-3 weeks.
    We recommend this shipping type based on item size, type and fragility.
    Ships From: Poitiers, France
  • Return Policy

    A return for this item may be initiated within 3 days of delivery.

1stDibs Buyer Protection Guaranteed
If your item arrives not as described, we’ll work with you and the seller to make it right. Learn more
About the Seller
5 / 5
Located in Poitiers, France
Platinum Seller
This distinction is for experienced sellers who continually surpass customer expectations.
Established in 1975
1stDibs seller since 2015
333 sales on 1stDibs
Typical response time: 2 hours
More From This Seller

You May Also Like

1940s Sapphire and Diamond 18 Karat Yellow Gold Cocktail Ring
Located in Hicksville, NY

Mid-20th Century Retro

1940s Retro Yellow Gold 18 Karat Ring
Located in Geneva, CH

Vintage 1940s Retro

Tank 1940 Ruby Diamonds 18 Karat Yellow Gold Ring
Located in Paris, FR

Vintage 1940s Retro

Retro French 18 Karat Yellow Gold Sapphire and Diamond Tank Ring
Located in New York, NY

Mid-20th Century Retro

Retro Tank Diamonds Ring, 18 Karat Gold and Platinum, circa 1940
Located in London, GB

Vintage 1940s Retro

Burma Sapphire Natural No Heat and GIA Yellow Diamond 18 Karat Gold Ring
Located in Miami, FL

21st Century and Contemporary Modern

Diamond Sapphire Rose Gold Retro Ring, 1940s
Located in Beverly Hills, CA

Vintage 1940s Retro

French 1940s Diamond Gold Platinum Ridged Dome Ring
Located in London, GB

Vintage 1940s

The 1stDibs Promise

Learn More

Expertly Vetted Sellers

Confidence at Checkout

Price-Match Guarantee

Exceptional Support

Buyer Protection

Insured Global Delivery