All this color collection has very special double multifaceted cut, which give the gemstones a special brightness.
Quartz is a mineral with many different colours and quite hard (8 Mohs scale); very appreciated in jewellery.
Diamond is the most special mineral ever known. With its top hardness (10 Mohs scale) it is 140 times harder than the previous one and has specific characteristics which makes it really unique.
|Type of gem