![]() The blue rock is transparent in clarity and can be glassy in luster. This blue crystal has a very high hardness, 7.5 to 8 in the Mohs scale. While most popular for its red variety, spinel also occurs as blue stones. Source: Rob Lavinsky, – CC-BY-SA-3.0 Blue Spinel Zircon is a traditional birthstone for December in the Western calendar, while the Hindu calendar assigns the blue stone to the month of September. It is with the blue gemstone variety that zircon distinguishes itself from diamond and stands out as a dazzling gemstone in its own right. Zircon is an excellent gemstone often made a substitute to diamond. Source: Rob Lavinsky, – CC-BY-SA-3.0 Blue Zirconīlue zircon is among the most brilliant of blue gemstones. Zircon in different colors, including blue In fact, this blue stone has been made the modern birthstone for the month of December. Though relatively new, tanzanite is quite popular today. The latter blue gemstone was discovered only in 1967 in Tanzania, from which the blue crystal got its name. Source: Rob Lavinsky, – CC-BY-SA-3.0 Tanzanite and Zoisiteīeside violet, green, pink, yellow, gray and colorless, zoisite also occurs as blue stones, the purplish blue being called tanzanite. In astrology, the blue stone is assigned as birthstone to the zodiac sign Scorpio. Though traditionally the birthstone for October, aquamarine is the modern March birthstone. The name comes from the Latin for “water of the sea,” in reference to the gemstone’s color, which is turquoise or blue, the deep blue variety being called maxixe. Necklace of milky aquamarine, a semiprecious blue gemstone AquamarineĪquamarine is the blue gemstone of the beryl group of minerals, which is called emerald when green. 51 Types of Green Gemstones for Jewelry.Jeremejevite owes its value to the extreme rarity of the blue stone, which is known to occur in a few thousand crystals, most of which is not suitable for cutting. Though also available in yellow and colorless, jeremejevite is most popular for its light blue variety, which is among the most valuable of blue gemstones. Jeremejevite was discovered in 1883 by the Russian mineralogist Jeremejev, after whom the blue gems was named. Source: Rob Lavinsky, – CC-BY-SA-3.0 Blue Jeremejevite This blue gemstone is among the most valuable gemstones in the world, with prices of around $1,500 per carat. Like alexandrite, this blue gemstone changes color, from blue at daytime to red or purple under an incandescent light. Though most valuable in green (demantoid), garnet also occurs as blue stones, which are in fact the rarest. ![]() ![]() Source: Tritonal via Wikimedia Commons Blue Garnet The blue garnet, which changes to purple at night In astrology, opal is a birthstone for Libra. Opal in general is the modern birthstone for October. While most common in white and most expensive in black, opal is quite popularly known to occur as blue stones, whether the blue is found among the play of colors or the body tone itself. Source: Dpulitzer via Wikimedia Commons Blue Opal The pricey blue stone was officially pronounced the state gem of California in 1985. The blue crystal ranges in shade from pale blue to bright blue. This blue jewel was named after the San Benito River, near who headwaters the blue gemstone was found. Source: Rob Lavinsky, – CC-BY-SA-3.0 BenitoiteĪlmost exclusively found in California, benitoite is among the rarest and accordingly most expensive of blue gemstones. In astrology, the blue gem is traditionally held to be the birthstone for Taurus. Though traditionally the birthstone for April, this precious blue stone has been made the modern birthstone for September in the Western calendar, while the Hindu calendar designates sapphire as the July birthstone. Second only to diamond in hardness, this blue rock is a variety of corundum, a mineral that when red is called ruby. Sapphire is the ultimate representation of blue gemstones, and has consistently remained one of the four precious stones in the world, along with diamond, ruby and emerald. Source: Rob Lavinsky, – CC-BY-SA-3.0 Sapphire Owing to its rarity, the blue gem comes at a very expensive price. This blue crystal got its name from Serendib, the old Arabic name for Sri Lanka. While first discovered in green and is most commonly black, serendibite also occurs as grayish blue stones. Serendibite is a very rare glassy gemstone from Sri Lanka. Source: Salexmccoy via Wikimedia Commons Blue Serendibite An alexandrite that changes color from red to blue Alexandrite is a traditional birthstone for June. At night alexandrite appears reddish with incandescent light, while usually green or blue at daytime. The color of this gemstone changes depending on the source of light. THE BLUE DIAMOND : From Misfortune to Eternal LoveĪlexandrite is a color-changing gemstone of the mineral chrysoberyl.
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