Demantoid Garnet belongs to the large gemstone family of garnets, and is actually a variety of the mineral andradite. It has a beautiful dispersion (rainbow colours) that makes this gem pop. Select from our range of Namibian and Russian gems. Be sure to make use of the “Make an offer” function on items to negotiate a price with the seller. Gem with a green tone will be priced higher as will stones that are well cut. This increase the dispersion (fire) and make the gem even brighter. This is one of the only gems where an inclusion can add value.