-Genuine and Natural Obsidian in Top Quality.
Jet Black For Highest Contrast of Gold Items
Smooth Surface For Testing Gold Conveniently.
-Shape may not same as shown in image as Its a Stone After All ( depends on availability )
-Provided By Johnson Tools, A Name of Trust.
Pure Stone For Testing The Gold Jewellery Is Real or Not, Original Stone. It comes with Smooth surface for testing gold conveniently, of large size.
