5.81cts faceted blue rainbow topaz oval 925 sterling silver ring size 8.5 n7450

Rainbow Topaz

The Topaz has a vast history of natural life, but Rainbow topaz is treated unnaturally with a slight coating of titanium to show the needed rainbow effect. It is thought that ancient Greeks obtained the topaz from the island Topazos, a small island near the Red Sea, whereas this magnificent gem is carved out through the process named as vacuum deposition. It is an improved topaz which delivers a breathtaking rainbow effect. The titanium coating creates interference effects, which results in rainbow effects of assorted colors. The stone's natural refraction is altered by the veneer, generating stunning rainbow colors. Acknowledged to be a stone of transmutation, it has become one of the most curious gems, for its colourful brilliance. It...