was the key to their success. Why?.
Amazonite (microcline)
Amazonite is an attractive opaque stone that, due to the presence of lead, is either striped blue and white or a solid
Alexandrite
Alexandrite is a transparent gemstone with a remarkable colour-change property: it appears leaf green in daylight and
Andean opal
Andean opal has become very popular because of its bright turquoise colour.
Faceted Square Cuts
The second group of faceted cuts includes straight-sided girdle shapes: squares, rectangles, octagons, triangles,
Fire Opal
The colour of fire opal can range from yellow to red, with orange to red the most usual and red the most desirable.
Faceted Round Cuts
There are two main categories of faceted stones: round shapes and straight-sided shapes.
Green moonstone
Green moonstone is not as well known as rainbow or blue moonstone as it doesn't have the colour play, but it is still a