Beautiful sample of a very nice diamond in the original "diamond-bearing" rock Kimberlite. It comes directly from Kimberly in South Africa. Silver (Ag 925) casing.
Diamond has its typical soapy shine and a beautiful light color, kimberlite rock is gray with a slight shimmer and is also quite handsome in itself.
A diamond is a diamond, and this is its most natural form in its "native lump", it is rare to encounter Kimberlite at all.