Two very fine unheated Sri Lankan (Ceylon) cornflower blue sapphires. The one on the left is and the the right is whose color is so remarkably similar to Kashmir origin that some gemological labs have certified it as Kashmir origin blue sapphire.
My grandmas birthstone NATURAL RUBY - CT. with GIA CERT Vietnam In the reports start to emerge that high quality Rubies were being found in the alluvial qqsediments of northern Vietnam from deposits in the Luc Yen and and Yen Bai areas.
Indigo Sapphire Sapphire which is indigo in color is one of the natural birthstones of those born in midwinter (January 20 - February Indigo crystals are rare and valuable. They bring you wisdom, truth, dignity, and spiritual mastery.
Padparadscha Sapphire - This very rare color of sapphire (orange / pink / peach) is highly prized by gem collectors. Gems over one carat sell for thousands per carat. Few mines in the world are yielding this kind of gem. (My favorite gemstone)