
OCT 31 | 4:00 PM

All auctions / Jewelry & Gems / Engagement ring - 18 kt


atural Padparadscha Sapphire 2.99 ct – 0.55 ct Natural Diamonds – 18K Gold – GRS Certified – Sri Lanka – No Heat Exceptional brand-new Italian-made ring featuring a rare 2.99 ct natural Padparadscha sapphire from Sri Lanka, surrounded by approximately 0.55 ct of natural diamonds and set in 18K (750) gold. Central Gemstone * Gemstone: Natural Padparadscha Sapphire * Weight: 2.99 ct * Origin: Sri Lanka * Color: Pastel orangy-pink * Shape: Octagonal * Cut: Scissor cut * Dimensions: 8.50 × 6.97 × 5.47 mm * Treatment: No indication of thermal treatment * Color Stability: Type I * Laboratory: GRS – GemResearch Swisslab * Report No.: GRS2026-097526 * Report date: 17 September 2026 The gemstone has been officially identified by GRS as “Natural Padparadscha”. The laboratory report states no indication of thermal treatment and confirms that the color stability test was applied with a Type I result. Diamonds * Natural diamonds * Total diamond weight: approx. 0.55 ct The central Padparadscha sapphire is surrounded by an elegant diamond halo, with additional diamonds extending along the shoulders of the ring. Ring * Metal: 18K gold * Gold fineness: 750/1000 * Hallmarked: “750” * Additional Italian identification hallmark * Made in Italy * Ring size: EU 55 * Inner diameter: approx. 17.5 mm * Condition: Brand new / never worn A beautiful and substantial jewel combining a nearly 3-carat unheated Sri Lankan Padparadscha sapphire with approximately 0.55 ct of natural diamonds. The combination of Sri Lankan origin, no indication of heating, GRS Padparadscha identification and Type I color stability makes the central gemstone particularly attractive for collectors and fine-jewellery enthusiasts. The ring will be supplied with its original GRS Gemstone Report and will be carefully and securely packaged for shipment.
Estimate:$7,079.41
To the auctionView all items fromCatawikiorJewelry & Gems
Estimate:
$7,079.41
A sapphire, diamond and 18k gold bangle bracelet
10/18/2026
$1,900
Est: $2,500
A miscellaneous group of gold and platinum rings
10/18/2026
$750
Est: $800

OCT 31 | 4:00 PM

OCT 23 | 8:00 AM

OCT 27 | 4:00 PM
Bring your auction to collectors worldwide!
Get listed now