18K Gold 4.05ct Tourmaline & 1.10ctw Diamond Ring
Updated August 8, 2026
| Lot number | 222 |
| Estimate | 5,650.00 - 11,650.00 USD |
| Category | Jewelry & Watches |
| Auction | Premier Auction: Rolex, Jewelry, Artwork & Collectibles |
| Date | August 15, 2026 at 11:59 PM EDT |
| Auction house | A&B Gemological Services |
| Location | Los Angeles, California |
18K White Gold 4.05ct Tourmaline and 1.10ctw Diamond Ring <br> <br> <br> An impressive gemstone ring crafted in solid 18K white gold, featuring a 4.05-carat trillion brilliant-cut tourmaline surrounded by approximately 1.10 carats of natural diamonds. <br> <br> <br> The center tourmaline displays a distinctive greenish-brown color with a transparent, loupe-clean appearance. It is framed by a sculptural double halo of round brilliant-cut diamonds, with additional diamond accents extending along the shoulders for exceptional brilliance and dimension. <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: 6.75 <br> Total Item Weight: 6.00 Grams <br> Country of Manufacture: USA <br> Estimated Retail Replacement Value: $11,650.00 <br> Reference Number: WAG9700 <br> Item Number: DAG2078 <br> <br> <br> Tourmaline Details <br> <br> <br> Gemstone: Tourmaline <br> Shape: Trillion Brilliant Cut <br> Quantity: 1 <br> Carat Weight: 4.05 Carats <br> Color Grade: Greenish Brown <br> Clarity Grade: Loupe Clean, Transparent <br> Cut Grade: Excellent <br> Treatment: Heated <br> <br> <br> Diamond Details <br> <br> <br> Gemstone: Natural Diamond <br> Shape: Round Brilliant Cut <br> Quantity: 156 <br> Total Carat Weight: 1.10 ctw <br> Color Grade: G–H <br> Clarity Grade: SI1–SI2, Eye Clean <br> Cut Grade: Very Good <br> Treatment: None <br> <br> <br> Total Gemstone Weight: 5.15 ctw <br> <br> <br> Appraisal: Professional appraisal included
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