18k Gold 11.20ct Tanzanite & 1.35ctw Diamond Ring
Updated August 7, 2026
| Lot number | 48 |
| Estimate | 18,900.00 - 37,800.00 USD |
| Category | Jewelry & Watches |
| Auction | Fine 18K Jewelry, Rolex, Artwork & Estate Collectibles |
| Date | August 13, 2026 at 8:59 PM PDT |
| Auction house | A&B Gemological Services |
| Location | Los Angeles, California |
18K White Gold 11.20ct Tanzanite and 1.35ctw Diamond Ring <br> <br> <br> An impressive gemstone ring crafted in solid 18K white gold, featuring a substantial 11.20-carat natural tanzanite surrounded by approximately 1.35 carats of natural diamonds. <br> <br> <br> The square-cut tanzanite displays a rich violetish-blue color and is secured in a prominent raised setting. A diamond halo frames the center stone, while baguette-cut and round brilliant-cut diamonds continue along the shoulders, creating a bold geometric presentation with brilliance from multiple angles. <br> <br> <br> This item comes with a professional appraisal. <br> <br> <br> Specifications <br> <br> <br> Metal: Solid 18K White Gold <br> Ring Size: 7 <br> Total Item Weight: 7.65 Grams <br> Country of Manufacture: USA <br> Estimated Retail Replacement Value: $37,800.00 <br> Reference Number: BEL21600 <br> Item Number: FA205583002-BR6558ATZ <br> <br> <br> Main Gemstone <br> <br> <br> Gemstone: Natural Tanzanite <br> Shape: Square Cut <br> Quantity: 1 <br> Carat Weight: 11.20 Carats <br> Color Grade: Violetish Blue <br> Clarity Grade: Type II <br> Cut Grade: Very Good <br> <br> <br> Diamond Accents <br> <br> <br> Gemstone: Natural Diamond <br> Shapes: Round Brilliant and Baguette Cut <br> Quantity: 52 <br> Total Carat Weight: 1.35 ctw <br> Color Grade: H–I <br> Clarity Grade: SI1–SI2 <br> <br> <br> Total Gemstone Weight: 12.55 ctw <br> <br> <br> Appraisal: Professional appraisal included
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