Some exceptional specimens of gemstones from our ‘Repository’

Repository

The section ‘Repository’ contains data and photos of 760 specimens of gemstones. The smallest is just 1.96 mm (0.02 ct) ruby from Mozambique, and the largest — 70.11 mm (326.60 ct) rock crystal from Africa.

Additionally there are 8 specimens of synthetic stones.

More specimens of gemstones

Cordierite — specimen 0123

— Weight: 0.21 ct; size: 5.07 | 3.09 | 2.16 mm; shape: oval; colour: medium light blue; very slightly greyish. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.

Agate — specimen 0124

— Weight: 4.37 ct; size: 13.15 | 13.13 | 3.25 mm; shape: round; colour: dark reddish orange. Clean specimen; very good cabochon style cut.

Ametrine — specimen 0128

— Weight: 6.53 ct; size: 11.96 | 9.36 | 7.19 mm; shape: octagon; colour: light bluish violet; strong. Very clean specimen; step cut style.

Andesine — specimen 0129

— Weight: 0.43 ct; size: 5.03 | 4.98 | 3.24 mm; shape: round; colour: medium red; strong. Very clean specimen; good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.

Featured

Kyanite

— In gneisses, schists, included pegmatites, and quartz veins, from regional metamorphism of sedimentary rocks (Anthony et al., 2001—2005).

Specimen figured

Kyanite — specimen 0481 — weight: 0.59 ct; shape: oval. Clean specimen; mixed style cut; good polish.