Loose Blue Spinel London blue 120# color Elongated Cushion Shape faceted cut 12x10mm Gemstones wholesale from China Supplier and manufacturers.
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The London blue Color Topaz gemstones is one of popular gemstones for the jewelry design.
London blue topaz is different from other blue topaz gemstones due to its shade of blue. London blue topaz has a very definitive shade of blue that is darker and inky compared to regular topaz. However, it is much lighter than a sapphire gemstone.
The color is #120 Blue Zirconia Spinel, it's best simulated gemstone to the London Blue Topaz gemstone.
What's Synthetic Spinel?
Synthetic spinel, was first produced accidentally during an attempt to make a satisfactory blue synthetic sapphire by the Verneuil process. Instead of the blue sapphire they discovered synthetic spinels like Synthetic Aquamarine. These lab created Blue London Blue Color Gemstones are exact copy of their Natural counterparts. The real London Blue Topaz is expensive but the good quality synthetic Blue Zirconia London Blue spinel is very cheap in comparison.
Synthetic spinel is widely used because it is slightly softer than synthetic corundum, it can be fashioned more rapidly and less expensively. Secondly, several of the colors in which it is made are better imitation for a number of natural stones than those made in Synthetic corundum.
CHEMICAL PROPERTIES: Al2O3
HARDNESS: 8.5 Moh’s Scale
DENSITY: 3.98 – 4.1 g/cm3
PURITY: 99.99%
MANUFACTURING PROCESS: Verneuil / Flame Fusion
Comparision of Spinel and Other gemstones:
The Popular colors of Spinel Stones:
104#, 105# and 106# are the simulated colors of Aquamarine, 104#Light, 105# Medium and 106# dark.
107# 108# colors are the simulated colors of Topaz Sky blue,
120# is the simulated color of Topaz London Blue.
119# is the simulated color of Topaz Swiss Blue.
112#, 113#,114# are the simulated color of Sapphire blue.
149#(Light) and 152#(Dark) are the simulated color of Tourmaline Green Color stones.
Click the following Color Chart and Shapes & Size Chart to learn More.
OUR ADVANTAGE
- Factory & Manufacturer since 2008, strong productive ability.
- Ensure the large quantity supply of product.
- We are one of the largest manufacturers & Suppliers of Loose gemstone in China Wuzhou City.
- Strict quality inspection:
- 15 production processes ; 9 inspection processes ; more than 8 experienced QC check ;
- Every gemstone has its quality assurance.
GUARANTEE
- 30 days return Policy without using and damage of the gemstones;
- Bulk product quality is not same as samples;
- Gemstones are not same as the order list;