Gemmology
English | Български
Where am I? > Home > Repository > Diamond


Gallery view selector

Colour selector
Simple colour schemeredorangey redreddish orangeorangeorangey yellowyellowgreenish yellowyellowish greenslightly yellowish greengreenvery slightly bluish greenbluish greenvery strongly bluish greengreen-blue or blue-greenvery strongly greenish bluevery slightly greenish bluebluevioletish bluebluish violetvioletbluish purplepurplereddish purplestrongly purplish redslightly purplish redcolourlessgreyblack
Diamond — specimen 0314, photo © NMNHS
Diamond — specimen 0314, photo © NMNHS

Diamondspecimen 0314

Origin

no precise locality [Africa]
Data

Weight: 0.03 ct; size: 2.00 | 2.00 | 1.17 mm; shape: round; colour: colourless; clarity: VVS2; cut: good; treatment: none.
Notes

Very small, very clean specimen; good brilliant style cut.

Other specimens
Diamond — specimen 0315Diamond — specimen 0599

More information from ‘Classification’


Primarily formed in pipes, less commonly in dikes, of deep-seated, igneous origin, composed of kimberlite or lamproite, and in alluvial deposits formed by their weathering. In carbonaceous achondrite and iron meteorites; may be formed by impact (Anthony et al., 2001—2005). Famous diamonds: Golden Jubilee, 545.67 carats, the largest polished gem, cut by Gabriel Tolkowsky, now part of the crown jewels of Thailand, resides in Bangkok; Cullinan I, also known as the Great Star of Africa, it weights 530.2 carats and is mounted in the Sceptre with Cross, part of the Crown Jewels of the United Kingdom; Koh-i-Noor, currently 105.60 carats, resides with the rest of the crown jewels, too; the Black Orlov Diamond, also known as the Eye of Brahma Diamond, 67.50 carats.