This is a natural piece of kimberlite with a rough Diamond still

Identity Help : Rough Diamond in Kimberlite conglomerate???

Prospecting for Diamond Deposits - The GemHunter's Guide: Diamonds

Identity Help : Rough Diamond in Kimberlite conglomerate???

Diamond - Wikipedia

Rough diamond hints at vast quantities of water inside Earth

Kimberlite Diamonds: Live Fast, Die Hard, by Alex Taylor

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I found a raw diamond in kimberlite rock in Ontario. [oc] 3264

Coloured diamonds from the Internatsionalnaya kimberlite pipe

kimberlite-diamond Minerals and gemstones, Minerals crystals

rough diamond found

Identity Help : Rough Diamond in Kimberlite conglomerate???

How are Natural Diamonds Formed? - Only Natural Diamonds