The beauty of pearl necklaces is unmatched. These timeless pieces elevate any ensemble, creating a striking effect. Bollywood ...

Ruby and sapphire of natural or synthetic origin can be heat treated to improve asterism; to remove asterism or silk; to improve, add, or remove color; and even to alter imperfections. At least nine ...

This transformation was caused by the discovery of a number of large deposits and the development of treatment processes that enhanced the color and clarity of huge quantities of previously ...