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Diamond

Unknown Owner
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A rare Brazilian specimen of a gemmy, glassy and lightly frosted, 4 mm, triangular diamond crystal nestled amongst conglomerate river pebbles and cobbles from the Diamantina River of Minas Gerais. These alluvial diamonds, deposited into conglomerates over time, are the reason this region of Brazil was named after an old-time diamond rush. Seldom are such specimens preserved. This one, amazingly, has very prominent pebbles and cobbles on both sides. The diamond rests on a 5.3 cm flat cobble. These came out of Brazil 40-50 years ago.

Product details

SpeciesDiamond
SizeSmall Cabinet
Dimensions7.6 x 5.4 x 4.8 cm
Added on10/23/2024

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

Learn more

Diamond
Mineral guide
Learn about Diamond
the hardest mineral (Mohs 10) with octahedra, trigons, and cube forms; matrix and alluvial crystals prized for pristine appearance and provenance.
Diamond
Regional guide
Diamond from Diamantina, Brazil
Diamantina, Brazil — famed alluvial diamonds from Proterozoic conglomerates; rounded octahedra to rhombododecahedra and historic subdistricts that collectors s…