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4.02 Carat No Heat Ceylon Sapphire In Platinum Art Deco Ring
ASSAY
¥7,899,400
4.02 Carat No Heat Ceylon Sapphire In Platinum Art Deco Ring
Est. Delivery Between: and
AGL and Gubelin certified no-heat 4.02 carat cushion cut Ceylon sapphire set in vintage platinum Art Deco original mounting with diamond halo, handmade filigree, milgrain, and ornate diamond pierced shoulders.
Accompanied with two certificates. Gubelin and AGL certified, stone measures 9.86 x 8.87 x 5.09mm. Ring size 6, adjustable.
Product Specifications:
- Item Type: Art Deco Engagement Ring
- Metal: Platinum 950
- Size: Adjustable
- Era: Art Deco
- Period: Circa 1930
- Certification: Gubelin 25112027, AGL 1151474
Center Stone Details:
- Type: Natural Corundum Sapphire
- Carat: 4.02 Carats
- Cut: Cushion Shape, Modified Brilliant Cut, Modified Step Cut
- Color: Blue
- Transparency: Transparent
- Dimensions: 9.86 x 8.87 x 5.09mm
- Treatment: No Heat (NTE)
- Origin: Sri Lanka (Ceylon)
Certification:
Gubelin: #25112027
AGL: #1151474
Accent Stone Details:
- Type: Natural Diamond
- Setting: Halo and Shoulders
- Cut: Round Brilliant and Single Cut
- Color: Near Colorless
- Clarity: VS-SI Range
About The Sapphire
This 4.02 carat Ceylon sapphire exhibits rich royal blue color with exceptional transparency and cushion cut proportions. No-heat treatment designation confirms the stone's natural color without thermal enhancement, significantly increasing value and desirability. Dual certification from Gubelin and AGL, two of the world's most respected gemological laboratories, provides comprehensive authentication and quality documentation. Ceylon sapphires from Sri Lanka remain among the most prized colored gemstones for their superior color saturation and transparency.
Large gem-quality sapphires like this are rarely found in nature—formation requires precise geological conditions, adequate pressure and temperature, and a rare combination of chemical elements including aluminum, iron, and titanium.
Most sapphires on the market are heated to improve color and clarity. This one wasn't. What you see is exactly what nature produced.
Demand for unheated sapphires continues to rise while supply from major sources—Kashmir, Burma, Sri Lanka, Madagascar, Tanzania—remains limited. Stones like this are increasingly difficult to source.
Accompanied by Gübelin Report No. 25112027.
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USA: 2-5 business days (USPS/FedEx)
Canada: 4-8 business days
Australia: 5-10 business days
Europe: 4-8 business days
Other countries: 6-10 business days
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- Items purchased using an installment plan.
More Details Here
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Consult directly with our on-staff GIA Graduate Gemologist and Watchmaker. Founded by an owner in the trade since 1983.
Speak to an Expert
Consult directly with our on-staff GIA Graduate Gemologist and Watchmaker. With an owner in the trade since 1983, expert guidance is always available.
Certificate of Appraisal
Every piece includes a certificate of appraisal, confirming authenticity, documenting value, and accepted by insurance.
Certificate of Appraisal
Every piece includes a certificate of appraisal confirming authenticity, documenting value, and providing trusted documentation accepted by insurance companies.
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Fast Shipping
Most in-stock pieces ship within 24–48 hours, with FedEx overnight delivery available on orders $500+. Contact us for expedited shipping options.
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