Sapphire (corundum) rough from Sri Lanka, listed by the seller at 14 grams. The species is a member of the gem-grade silicate family, with a Mohs hardness of 9.
Origin is stated as Sri Lanka; commercial rough from this region is described in the trade as exhibiting characteristic colorzonation and inclusion patterns. Faceting.com reproduces the seller's stated origin without independent verification.
The seller declares no treatment or enhancement. Lot photographs in the original listing should be examined before ordering.
| Species | Sapphire (corundum) |
|---|---|
| Origin | Sri Lanka |
| Weight (stated) | 14 g |
| Mohs hardness | 9 |
| Treatment | None declared |
| Retailer | Price | Stock | Shipping | |
|---|---|---|---|---|
| ◆Gem Rock Auctions | $102.67 | In stock | Ground | VISIT → |
| Rio Grande | $103 | In stock | Ground | VISIT → |
Ruby and sapphire: aluminum oxide of Mohs 9, with sources, treatments, and trade conventions.