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GIA Cert. 5.10 Carat Untreated Black Opal Diamond Halo Platinum Starburst Ring
ASSAY
¥1,092,200
GIA Cert. 5.10 Carat Untreated Black Opal Diamond Halo Platinum Starburst Ring
Est. Delivery Between: and
GIA-certified 5.10 carat natural black opal with no color treatment, displaying vivid full-spectrum play-of-color, set in a four-prong platinum 900 mounting within a starburst single-row round brilliant diamond halo totaling 0.77 carats.
Ring size 6.5, adjustable.
Product Specifications:
- Item Type: Cocktail / Statement Ring
- Metal: Platinum 900
- Size: 6.5 (adjustable)
- Weight: 7.66 grams
- Ring Face: 17.7 x 15.6mm
- Shank Type: Polished platinum plain shank
Center Stone Details:
- Type: Natural Black Opal
- Form: Oval Cabochon
- Carat: 5.10 carats
- Color Play: Vivid full-spectrum — green, blue, purple, yellow, orange
- Treatment: None (no color treatment — GIA certified)
- Setting: Four-prong platinum basket
- Certification: GIA Certified
Accent Diamond Details:
- Type: Natural White Diamond
- Cut: Round Brilliant
- Carat: 0.77 carats total
- Quantity: 18 stones
- Setting: Individual prong-set starburst halo — large stones spaced in sunburst arrangement around opal
About The Stones:
This 5.10 carat GIA-certified natural black opal is an extraordinary gemological specimen — its dark body tone provides the ideal backdrop against which its play-of-color blazes with maximum intensity, displaying vivid patches of electric green, cobalt blue, violet-purple, golden yellow, and orange that shift and dance with every movement under light. Black opals are the rarest and most valuable variety of opal in the world, found almost exclusively in Lightning Ridge, New South Wales, Australia, and prized by collectors precisely because their dark body tone makes the play-of-color appear more vivid and saturated than in any other opal type. GIA certification with no color treatment confirmed is the highest standard of provenance for a natural opal, guaranteeing that the stone's spectacular color display is entirely natural and unenhanced. The 18 round brilliant diamonds totaling 0.77 carats in the starburst halo provide a sparkling white frame that intensifies the opal's color play by creating a high-contrast border of white light around the stone.
MORE DETAILS
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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
Our layaway plan is 100% free and you don't have to apply or qualify for it. We simply require a 10% down payment then you will have 1-6 months to pay the remainder of the balance. Weekly, bi-weekly or monthly installment payments are available. You can pick and choose your own payment plan to find an option that works for you. Your order will be shipped to you as soon as it is paid in full. More Details Here.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
Non-Returnable Items: Certain items are ineligible for return, including:
- Resized or personalized items (e.g., engraved pieces).
- Pieces that are Custom-Made or Made To Order.
- Items purchased using an installment plan.
More Details Here
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Speak to an Expert
Direct access to our GIA Graduate Gemologist and Watchmaker.
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 comes with proof of authenticity and value.
Certificate of Appraisal
Every piece includes a certificate of appraisal confirming authenticity, documenting value, and providing trusted documentation accepted by insurance companies.
Industry Accredited
BBB, Diamond Dealers Club, JBT, & RapNet members
Industry Accredited
We're accredited by the Better Business Bureau, hold membership in the Jewelers Board of Trade, and are verified members of RapNet, the diamond industry's leading trading network. These credentials reflect our standing and accountability within the trade, not just to our customers, but to the industry itself.
4 Global Locations
Visit us in Miami, New York, Key West, or Hong Kong.
4 Global Locations
Visit us in person at any of our four locations in Key West, Downtown Miami, New York, or Hong Kong for personalized service.
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Fast Shipping
Most orders ship within 24–48 hours.
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.
See full shipping policy here
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Real People, Real Answers
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Insured & Gift-Ready
Every purchase is shipped fully insured for its entire value and shipped with signature required.
Each order comes gift-ready upon request.
One of One
Most jewelry is made to be sold many times over. Ours isn't. We source rare vintage and estate pieces, and craft the rest ourselves in-house.
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