An outstanding example in the al-Sabah collection is a unique object--possibly a ceremonial case for a conch shell--in which gems, including chrysoberyl
cat's eyes, are richly set in gold to create the figure of a mythic beast in a design typical of southern India.
A gem variety of the mineral chrysoberyl
that changes color from green in daylight to red in incandescent light, Alexandrite was named after Tsar Alexander II on the occasion of his coming of age, as its green and red colors were the same as the old Russian imperial colors.
With the depletion of reserves of Zimbabwe's famous Sandawana emeralds, the country now concentrates on its deposits of aquamarine, chrysoberyl
, alexandrite, tourmaline, and yellow, green, and pink beryl.
If you're seeking unusually rare gemstones like flame spinel, black opal or cat's eye chrysoberyl
, this is the most comprehensive selection you will find online," noted Jay Boyle, Senior Buyer for Jewelry Television.
5-8, which is exceeded by only a few other gemstones such as chrysoberyl