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2. Asterism (gemology) - Wikipedia

   en.wikipedia.org/wiki/Asterism_(gemology)

   The star-effect may be also caused by the inclusions of hematite. In black star sapphire hematite needles formed parallel to the faces of the second order prism produce asterism. Some star sapphires from Thailand contain both hematite and rutile needles forming a 12-ray star. [3] Star-stones were formerly regarded with much superstition. [1]

3. List of sapphires by size - Wikipedia

   en.wikipedia.org/wiki/List_of_sapphires_by_size

   Star Blue Anonymous owner [3] Black Star of Queensland: Australia 1938 733 carats (146.6 g) Star Black Anonymous owner [4] Star of India: Sri Lanka 563.4 carats (112.68 g) Star Blue-gray American Museum of Natural History, New York [5] Queen Marie of Romania: Sri Lanka 478.68 carats (95.736 g) Cushion Blue Anonymous owner [6] Logan Sapphire ...

4. List of rubies by size - Wikipedia

   en.wikipedia.org/wiki/List_of_rubies_by_size

   A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. [1] The word ruby comes from ruber, Latin for red.

5. Order of the Nine Gems - Wikipedia

   en.wikipedia.org/wiki/Order_of_the_Nine_Gems

   The nine precious stones of the royal amulet constitute an integral part of both the badge and the star of the order. The nine gems and the corresponding benefits that they bestow on their bearers are: Diamond—Power, wealth, success over enemies; Ruby—Success and longevity; Emerald—Strength and security; Yellow Sapphire—Charm and love

6. Sapphire - Wikipedia

   en.wikipedia.org/wiki/Sapphire

   A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as asterism; red stones are known as "star rubies". Star sapphires contain intersecting needle-like inclusions following the underlying crystal structure that causes the appearance of a six-rayed "star"-shaped pattern when viewed with a single overhead light source.

7. Henry Ho (jeweler) - Wikipedia

   en.wikipedia.org/wiki/Henry_Ho_(Jeweler)

   In 1997, Ho established the Jewelry Trade Center (JTC), Asia's largest gems and jewelry marketplace. Ho led a conglomerate consisting of Thailand's leading captains of industries. [ 2 ] Bangkok Bank, TV Channel 3 and Central Group, were invited to take part in a venture to develop a plot of land measuring over 4.5 acres in Bangkok's central ...