Pre-Summer Jewelry & Watch Collection
Tue, Jun 23, 2026 11:30AM EDT
Lot 4
18K Yellow Gold & Platinum Ring with 12.35 CTW in Synthetic Sapphire & Diamond
Estimate: $2,200 - $3,000
Bid Increments
| Price | Bid Increment |
|---|---|
| $0 | $25 |
| $500 | $50 |
| $1,000 | $100 |
| $2,000 | $200 |
| $5,000 | $500 |
| $10,000 | $1,000 |
Antique 18K yellow gold and platinum Princess Diana–style ring featuring a vivid synthetic blue sapphire center stone weighing approximately 11.70 carats, framed by a diamond halo of 22 single-cut diamonds totaling approximately 0.65 carats (H color, VS2 clarity). This design is considered “Princess Diana style” due to its iconic combination of an oval blue sapphire centerpiece surrounded by a sparkling diamond halo, a look popularized by Princess Diana’s famed sapphire engagement ring. The ring measures approximately 1.0 inch in width, weighs 8.3 grams, and is a size 7 1/2.
Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide Ring resizing or/and appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.
Condition
Available payment options
Winbids Auctions manage their own shippings, UPS & Fedex. Once buyer receives invoice it will be presented with the shipping cost. If buyer chooses to pay, the auction house will arrange the shipping with a 2-day delivery insured package. This is optional, buyer can also provide auction house with a label or arrange for a pick up. Winning bidders can pick up their won lots at our location. Please bring a photo ID and a copy of your invoice. Please note that taxes will be charged upon pick up unless a valid resale certificate for the business matching the invoice is presented. Buyers are responsible for paying Shipping cost.