Platnum 1.80ctw Diamond Engagement 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	268
Estimate	11,174.00 - 21,195.00 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

Platinum 1.80ctw Diamond Engagement Ring A substantial diamond engagement ring crafted in solid platinum, featuring a 1.20-carat natural princess-cut center diamond accented by approximately 0.60 carat of natural round brilliant-cut and baguette-cut diamonds. The center diamond is secured in a four-prong setting and framed by a geometric arrangement of round and baguette-cut diamonds along the shoulders. The polished platinum setting provides a bright, durable finish and gives the ring a refined, structured presentation. This item comes with a professional appraisal. Specifications Metal: Solid Platinum Ring Size: 6 Total Item Weight: 7.50 Grams Country of Manufacture: USA Estimated Retail Replacement Value: $21,195.00 Reference Number: WAG16100-0004 Item Number: DAG2156 Center Diamond Details Gemstone: Natural Diamond Shape: Princess Cut Quantity: 1 Carat Weight: 1.20 Carats Color Grade: G–H Clarity Grade: SI2–SI3 Cut Grade: Very Good Treatment: None Accent Diamond Details Gemstone: Natural Diamond Shapes: Round Brilliant and Baguette Cut Quantity: 12 Total Carat Weight: 0.60 ctw Color Grade: G–H Clarity Grade: SI1–SI2 Cut Grade: Very Good Treatment: None Total Diamond Weight: 1.80 ctw Appraisal: Professional appraisal included

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