Turquoise gemstones are very often enhanced, and good quality natural, untreated stones are no longer the norm. Other types of stone which have been dyed are also frequently seen. The best quality Turquoise is...
Investment grade natural ruby gemstones. The gem trade has seen a rise in synthetic rubies with flux-induced healed fractures being offered as natural rubies. The synthetic stones, which reportedly come from...
Jadeite jade is perhaps one of the most difficult gemstones to identify simply because there are a number of gemstones whose characteristics resemble that of jade and the abundance of imitations in the market....