18K Gold 12.00ct Amethyst & 4.90ctw Diamond Ring
Updated September 15, 2026
| Lot number | 354 |
| Estimate | 14,350.00 - 28,700.00 USD |
| Category | Jewelry & Watches |
| Auction | Collector’s Auction SALE – Rolex, Fine Jewelry, Art & Rare F |
| Date | September 18, 2026 at 8:59 PM PDT |
| Auction house | A&B Gemological Services |
| Location | Los Angeles, California |
18K Yellow Gold 12.00ct Amethyst & 4.90ctw Diamond Ring <br> <br> <br> Estimated Retail Replacement Value: $28,700.00 <br> Ref: BEL16400 <br> Item No.: DAG-1/043-2062 <br> <br> <br> An impressive statement ring crafted in solid 18K yellow gold and centered with a substantial natural amethyst weighing approximately 12.00 carats. The cushion checkerboard-cut gemstone displays a rich purple color with vivid flashes of violet and pink throughout its faceted surface. <br> <br> <br> The center stone is surrounded by a bold halo of natural round brilliant-cut diamonds, with additional diamonds extending across the broad shoulders of the ring. A total of 52 diamonds weighing approximately 4.90 carats create exceptional brilliance and a luxurious, high-impact presentation. <br> <br> <br> Specifications <br> <br> <br> Gold Content: Solid 18K Yellow Gold <br> Weight: 27.80 grams <br> Ring Size: 8.25 <br> Country of Origin: USA <br> <br> <br> Main Gemstone: Natural Amethyst <br> Shape: Cushion Checkerboard Cut <br> Quantity: 1 <br> Carat Weight: 12.00ct <br> Color Grade: Purple <br> Clarity: Eye Clean <br> Cut Grade: Very Good <br> <br> <br> Accent Gemstones: Natural Diamonds <br> Shape: Round Brilliant Cut <br> Quantity: 52 <br> Total Carat Weight: 4.90ctw <br> Clarity Grade: VS2–SI2 <br> Cut Grade: Very Good <br> <br> <br> Condition <br> <br> <br> Presented in excellent condition, with securely set gemstones, bright yellow-gold surfaces, and strong overall brilliance. Minor handling marks may be present upon close inspection. <br> <br> <br> The ring comes with an appraisal documenting its specifications and estimated retail replacement value.
More lots in this auction
- 18K Gold 0.75ctw Emerald & 0.20ct Diamond Ring
- 18K White Gold 8.05ct Blue Sapphire & 1.55ctw Diam
- 18K Yellow Gold 2.05ctw Diamond Deco Style Bracele
- 18K Gold 2.95ctw Topaz & 1.15ctw Diamond Ring
- Marc Chagall BOUQUET WITH CHERRIES Offset Lithogra
- 14K White Gold 0.35ctw Diamond Bangle
- 14K Gold 1.20ctw Diamond Bracelet
- 14K Gold 2.35ct Tanzanite & 0.45ctw Diamond Ring
See all lots in Collector’s Auction SALE – Rolex, Fine Jewelry, Art & Rare F →