Gemological Institute of America1 年
The Magic of Colored Diamonds
Colored diamonds are in the spotlight. They’re routinely breaking records at auction houses. They make headlines when set in celebrity engagement rings. And they’re gemological marvels of the rarest ...
Gemological Institute of America6 年
The Magic of Colored Diamonds
Colored diamonds are in the spotlight. They’re routinely breaking records at auction houses. They make headlines when set in celebrity engagement rings. And they’re gemological marvels of the rarest ...