18K Gold 2.35ct Tanzanite & 1.05ctw Diamond Ring

Updated September 15, 2026

This auction ended on September 18, 2026. See upcoming auctions from A&B Gemological Services or current jewelry & watches auctions.

Lot number	17
Estimate	5,175.00 - 9,639.00 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 White Gold 2.35ct Tanzanite and 1.05ctw Diamond Ring An elegant gemstone ring crafted in solid 18K white gold, featuring a 2.35-carat natural cushion brilliant-cut tanzanite surrounded by approximately 1.05 carats of natural diamonds. The center tanzanite displays a vivid bluish-purple color and is secured in a four-prong setting. A halo of round brilliant-cut diamonds frames the center stone, while additional diamonds extend along the split shoulders, creating brilliance across the face of the ring. The substantial 8.50-gram construction gives the piece a refined fine-jewelry presence. This item comes with a professional appraisal. Specifications Metal: Solid 18K White Gold Ring Size: 7 Total Item Weight: 8.50 Grams Country of Manufacture: USA Estimated Retail Replacement Value: $9,639.00 Reference Number: WAG9113-7275 Item Number: DAG2044 Tanzanite Details Gemstone: Natural Tanzanite Shape: Cushion Brilliant Cut Quantity: 1 Carat Weight: 2.35 Carats Color Grade: Bluish Purple Clarity Grade: Loupe Clean Cut Grade: Very Good Treatment: Heated, Common Diamond Details Gemstone: Natural Diamond Shape: Round Brilliant Cut Quantity: 136 Total Carat Weight: 1.05 ctw Color Grade: G–H Clarity Grade: SI1–SI2 Cut Grade: Very Good Treatment: None Total Gemstone Weight: 3.40 ctw Appraisal: Professional appraisal included

18K Gold 2.35ct Tanzanite & 1.05ctw Diamond Ring

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