If not for alexandrite’s popular associations, the circumstances necessary for its formation, combined with its mining history, might have ensured the gem would be little known as well as extremely rare. Originally discovered in Russia’s Ural Mountains in the 1830s, it’s now found in Sri Lanka, East Africa, and Brazil, but fine material is exceptionally rare and valuable. Often described by gem aficionados as “emerald by day, ruby by night,” alexandrite is the very rare color-change variety of the mineral chrysoberyl. The stone’s prices are generally determined based on quality, meaning that a larger, lower-quality stone could be much cheaper than a smaller one that’s of a higher quality. Sapphires are sold from anywhere from US $25 per carat to well over US $11,000 per carat depending on colour and inclusions. They are sought after due to the depth of their colour, their hardness (which is second only to that of diamonds), their durability and their ability to sparkle in the light – a phenomenon known as lustre. Blue Sapphire stones are the most valuable naturally blue-coloured gemstones in the world. Sapphires can range in price depending on a number of factors. However, color preferences are a personal taste, like a flavor of ice cream. Gems that are of lower saturation, or are too dark or too light in tone are of less value. The highest prices are paid for gems that are pure blue and of vivid saturation. Violet, and green are the most common secondary hues found in blue sapphires. Blue sapphires are evaluated based upon the purity of their blue hue. These stones have been associated with royalty for several centuries already.īlue sapphire exists in various mixtures of its primary (blue) and secondary hues, various tonal levels (shades) and at various levels of saturation (vividness). When it comes to precious gemstones, blue sapphires have long been sought after, as they carry significant meaning. Sapphire is a precious gemstone, of the mineral corundum variety.
0 Comments
Leave a Reply. |