Showing posts with label natural ruby gemstones. Show all posts
Showing posts with label natural ruby gemstones. Show all posts
Sunday, October 16, 2022
In the world of gemstones, modern technology can be a good thing or a not so good thing. For at least the last decade, there has been an ong...
Monday, July 19, 2010
Ruby treatments - continued... Surface diffusion is rarely used and in fact, diffusion-treated red corundum should probably not be called ru...
Large untreated top quality natural rubies are still extremely rare and very valuable. In 2006 a completely natural unheated 8.60 carat rub...
Monday, July 12, 2010
What do you think of when someone mentions ruby – the ruby slippers from the Wizard of Oz, the ruby and diamond earrings and necklace from ...