Welcome to FU RONG GEMS!We supply many kinds of Loose Gemstones at factory direct price, Free Quote: [email protected]
23
2024 - 02
Loose Simulated Sapphire blue Spinel Blue Color #113 Oval shape faceted cut 6x4mm Gemstones wholesale from China Supplier and manufacturers. Pictures 113# blue color stones usually used as the simulated color of Sapphire blue stones. when you're looking for a cheaper alternative blue sapphire gemstones, Spinel 113# blue color is one of best choice. What's Synthetic Spinel? A: Although not as widely used today as synthetic Corundum, synthetic Spinel is still one of the most common man-made gem materials, particularly blue synthetic Spinel. It appears frequently in class rings and costume jewelry. Blue, green and other colors of synthetic Spinel are mostly manufactured using the inexpensive flame-fusion method by which the Spinel develops around an elongated boule. These flame-fusion Spinels can be distinguished from natural Spinels by a slightly elevated refractive index due to a chemical variation involving higher aluminum content. Blue Synthetic Spinels of the flame-fusion type are typically colored only by cobalt. No iron is added, and therefore they are diamagnetic, another property that distinguishes blue flame-fusion Spinels from blue natural Spinels. When viewed under the Chelsea filter and also under long wave UV light, the light blue and medium blue gems pictured below left and center show...
07
2022 - 09
Loose Synthetic Aquamarine Spinel Aqua Blue Color #106 Oval Shape Faceted Cut 6x8mm and 8x10mm Gemstones wholesale from China Supplier and manufacturers. Pictures 106# blue color stones usually used as the simulated color of Aquamarine Color Gemstones. What's Synthetic Spinel? A: Although not as widely used today as synthetic Corundum, synthetic Spinel is still one of the most common man-made gem materials, particularly blue synthetic Spinel. It appears frequently in class rings and costume jewelry. Blue, green and other colors of synthetic Spinel are mostly manufactured using the inexpensive flame-fusion method by which the Spinel develops around an elongated boule. These flame-fusion Spinels can be distinguished from natural Spinels by a slightly elevated refractive index due to a chemical variation involving higher aluminum content. Blue Synthetic Spinels of the flame-fusion type are typically colored only by cobalt. No iron is added, and therefore they are diamagnetic, another property that distinguishes blue flame-fusion Spinels from blue natural Spinels. When viewed under the Chelsea filter and also under long wave UV light, the light blue and medium blue gems pictured below left and center show a pale pink reaction due to low cobalt content, while the dark blue gem on the right...
25
2022 - 08
Lab Created Synthetic Spinel Green Tourmaline #152 Color Oval Shape Faceted Cut 6x4mm and 14x7mm gemstones Wholesale at factory price from China Supplier and manufacturer What's the lab created green tourmaline Gemstones? The material of lab created green tourmaline is the Spinel, green color spinel stones belongs to the Spinel Family stone. Lab created Green tourmaline are the Color Number 149# and the Dark Green 152# of Spinel. What's Green Tourmaline Gemstones? Green tourmaline is a type of green crystal and is part of the tourmaline family, which also features colors such as red, yellow, blue, colorless and even black. Green tourmaline is considered to be the most common tourmaline gemstone, and is considered the classic color of the gem. Green tourmaline stones feature a wide range of shades within the green color range. While some of these gemstones feature a darker bottle green color, others stones can range from a very light green to a yellowish green, or olive color. Certain green tourmaline stones feature a blue-green or darker green color. Green tourmaline featuring the blue-green colors are considered to be the most favored colors and are increasingly rare compared to other shades of the gemstone. In certain jewelry settings...