Platinum Montana Sapphire & Diamond Necklace
Updated September 12, 2026
| Lot number | 2 |
| Category | Jewelry & Watches |
| Auction | Fine & Designer Jewelry Auction, Oct 2nd |
| Date | October 2, 2026 at 6:00 PM AKDT |
| Auction house | Alaska Auction Co |
| Location | Anchorage, Alaska |
A documented platinum necklace featuring natural, unheated multi-color Montana sapphire and diamond gemstones. $168,390 estimated retail replacement value - Metal: Platinum, .950 purity - Gemstones: 30 natural, unheated Montana sapphire corundum gemstones, multi-color - Sapphire weight: 42.75 carats total; oval brilliant cut; 9.0 x 5.0 mm - Diamonds: 30 round brilliant cut natural diamonds - Diamond weight: 8.25 carats total; average clarity SI1-I1 - Diamond finish: Excellent symmetry and polish - Documentation: GGA jewelry insurance appraisal with estimated retail replacement value of $168,390 - Certification: GIA Sapphire Report #1236170180
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