Diamonds vs coloured gemstones
Diamonds vs coloured gemstones Rough&Polished correspondent Sergey Goryainov sat down for a talk with Professor Andrey Ametistov, a Russian gemologist to discuss similarities and differences between the diamond market and coloured gemstones market. Over the past five years, the technologies for the synthesis of gem-quality diamonds have been developed by leaps and bound and there has been a corresponding industrial and commercial boom, as a result, the supply of high-quality large-sized synthetic stones is growing exponentially, the synthetics’ production cost is falling, and it can be sa...
Source: rough-polished.com