Gemmology
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Repository

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

Peridot — specimen 0311Peridot — specimen 0311

Weight: 0.35 ct; size: 4.42 | 4.38 | 2.70 mm; shape: round; colour: medium yellowish green; very slightly greyish. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Peridot — specimen 0312Peridot — specimen 0312

Weight: 0.34 ct; size: 4.45 | 4.42 | 2.69 mm; shape: round; colour: medium yellowish green; very slightly greyish. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Diamond — specimen 0315Diamond — specimen 0315

Weight: 0.03 ct; size: 1.97 | 1.97 | 1.17 mm; shape: round; colour: colourless. Very small, very clean specimen; good brilliant style cut.
Ruby — specimen 0318Ruby — specimen 0318

Weight: 0.11 ct; size: 2.67 | 2.63 | 2.00 mm; shape: round; colour: medium dark purple; strong. Small, very clean specimen; good brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.
Featured
Titanite

— Also known as sphene; a common accessory mineral in intermediate and felsic rocks, pegmatites, and alpine veins; in gneisses, schists, and some skarns (Anthony et al., 2001—2005).

Specimen figured

Titanite — specimen 0313weight: 0.62 ct; shape: round. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Titanite — specimen 0313