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15 and dispersion of 0
Titanium sapphire is a very unusual variety of sapphire
7mm and weighs in at 51g
It is an excellent gem
with a nice greenish/purple hue under fluorescent lamps
Pink Faceted Ruby Gemstones, Cut Pulled Rubies Stone:Bubbly Diamond Cushion, 11.6x9.2mm, 3.72ct 15 and dispersion of 0These are faceted pink rubies, grown using the Czochralski pulling methods. Like all rubies they have a high hardness of 9, great brilliance and glow red under UV. These might have been intended for lasers, or perhaps luxury watches. Some pieces have bubbles. The most classic gem produced by science is laser ruby. While material of this color would be called 'pink sapphire' in a gemological context, in laser science all corundum doped with chromium is
US$ 39.99
US$ 14.95
US$ 35.95
US$ 35.95
