was the key to their success. Why?.
Nevada Black Opal
The rarest and most valuable opals are bright on black. Black background opals show off the rainbows of fire, or play
Faceted Square Cuts
The second group of faceted cuts includes straight-sided girdle shapes: squares, rectangles, octagons, triangles,
Size and Shape of Pearls
There are many different shapes and sizes of pearls depending on where the come from or what they are formed in.
Natural glass: obsidian and moldavite
Natural glass tends to be overlooked as a gemstone because of the extensive use of manufactured glass in gemstone
Beryl
Few people can resist the glamour and intensity of the emerald. It is the gemstone that made Cleopatra's mines famous
Quartz
Quartz is the biggest gemstone species of all, and one of the most widely used in modern jewelry making. This is an
Sapphire
Sapphies are more abundant than ruby because its colouring agents (impurities) are more common than those of ruby.