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GIA Certified 20.61 Carat Orange Opal 18K Gold Diamond Pendant Necklace
ASSAY
£12,964.00
GIA Certified 20.61 Carat Orange Opal 18K Gold Diamond Pendant Necklace
Est. Delivery Between: and
Vintage circa 1980s–1990s cocktail necklace features a GIA-certified 20.61-carat natural orange opal cushion cut, set in an ornate 18K yellow gold pendant with a double halo of near-colorless round diamonds.
Includes a detachable clip-bail and is paired with a 21-inch, 3mm Italian cable chain, showcasing an elaborate retro design with approximately 1.0 carat total weight of E–F color, VS clarity diamonds.
Made in Italy.
Product Specifications:
- Item Type: Vintage Cocktail Pendant Necklace
- Era: Circa 1980s–1990s
- Metal: 18K Yellow Gold
- Main Gemstone: Natural Orange Opal
- GIA Report Number: 1528697860
- GIA Report Date: July 10, 2025
- Gemstone Shape: Cushion
- Cutting Style: Modified Brilliant Cut
- Gemstone Transparency: Transparent
- Gemstone Color: Orange
- Opal Weight: 20.61 Carats
- GIA-Reported Gross Weight: 13.84 Grams
- GIA-Reported Measurements: 19.11 × 19.09 × 12.40 mm
- Diamond Accent: 108 Round Diamonds
- Diamond Total Weight: Approximately 1.00 Carat
- Diamond Color: E–F
- Diamond Clarity: VS
- Setting: Double Diamond Halo with Rope-Detail Border
- Pendant Width: 27.5mm
- Bail Height: 11mm
- Bail: Detachable
- Chain Material: 14K Yellow Gold
- Chain Style: Italian Cable Chain
- Chain Length: 21 Inches
- Chain Width: 3mm
About the Pendant and Setting:
The statement pendant features a substantial square cushion-shaped orange opal framed by two concentric rows of sparkling near-colorless diamonds. Twisted rope detailing adds texture and dimension to the yellow gold setting, while the decorative bail complements the pendant’s vintage-inspired craftsmanship. The detachable bail allows the pendant to be separated from the chain, offering additional styling flexibility.
MORE DETAILS
Contact us or fill out our custom jewelry form.
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.
Find out more and schedule an appointment at your nearest location here
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
Warranty Included
1-year warranty on every watch. 3-year warranty on fine jewelry.
Warranty Included
Every watch we sell, including vintage and pre-owned, comes with a 1-year movement warranty. If the movement fails under normal use, our watchmakers repair it at no cost.
New fine jewelry is covered by a 3-year limited warranty against manufacturing defects like loose stones, loose prongs, or broken clasps.
Physical damage and normal wear are not covered.
Full Warranty Policy here
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.
Verified & accredited
Credentials you can verify.
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