Monday, February 14, 2011

Gem Stones, base 1,000gp value

Black Opal

Black Opal isn't very black, but its background hue is much darker compared to other opals (see below).





Fire Opal




Opal



Oriental Amethyst

Also called Violet Sapphire, this gem is much harder than the occidental Amethyst.  A near-colorless version is difficult to distinguish from diamonds.


Oriental Topaz

Also called Yellow Sapphire.  When rubbed or heated the Yellow Topaz can generate an electrical charge.





Star Ruby



Star Sapphire