Loose Nano crystal Paraiba tourmaline Oval Shape Faceted cut Gemstones wholesale from china supplier and manufacturer.
What is Paraiba tourmaline Color Gemstones?
In 1989, Brazilian miners discovered a unique and brightly colored variety of tourmaline in the state of Paraiba. The new type of tourmaline, which soon became known as Paraiba tourmaline, came in unusually vivid blues and greens. The gemstone world was captivated from the very beginning by the beauty and neon glow of the Paraiba tourmalines. In no time at all they achieved great popularity, and today they are among the most sought-after and most expensive gemstones in the world. Prices for loose Paraiba tourmaline gems continue to climb, and have already reached a level which, earlier on, would not have seemed realistic for a tourmaline. Five-figure prices per carat are by no means exceptional for fine, large Paraiba Tourmaline gemstones.
If you are going to spend major money on an item of Paraiba tourmaline jewelry, it is important to know if the gem you are buying is natural or man-made. Why? Natural Paraiba tourmaline sells for a much higher price than man-made alternatives. You don't want to pay the price of a natural gem and take home a man-made alternative.
Now one of the best Simulated Paraiba tourmaline gemstones is made of Nano Gemstones, the color is beautiful, looks very close to the Natural Paraiba tourmaline Gemstones, but the color is cheap to afford.
What is Nano Gemstones ?
A: Nano Crystal gemstone - is the glass-ceramic material with nano sized (10⁻⁹m) crystals of Spinel in an aluminosilicate glass matrix, which is not special glass and it is not synthetic crystal or mineral - it is their hybrid. This composite material has unique physical and optical properties: Color (homogeneous and even), Density (3-3.3g/cm³), Luster (RI=1.61-1.64); Melting temperature (more than 1650 C°) and high thermal shock resistance make this material ideally compatible with the wax-casting technology.
Nano Crystal gemstone are a new type of created gemstone made especially for jewellery. The colour is homogeneous, meaning that if you bought 100 emerald green nano crystal stones, the colour would be exactly the same in every stone. The material has been created with precious metal clay in mind, so any size gem should be kiln safe and blow torch safe with out colour change or damage.
Nano Crystal gemstone does not contain any health hazardous contaminants (lead, arsenum, cadmium) Hardness: 7 on Mohs scale
Refractive Index: 1.65-1.7
Specific Gravity: 3.5-4
Melting Point: 1700 degrees Celcius It does not change color when heated. Can be used in wax casting.
The Main characteristics of Nanosital/Nano Crystal stones:
1.Nano Stone's specific gravity index is very close to that of the most valuable gemstones such as topaz, sapphire, ruby and aquamarine.
2.Nano Stone and the optical properties of the most popular color gemstones are almost similar. Nano Stone's main feature is its lack of an unnaturally strong lustre, which is typical of cubic zirconia, wherein the play of colors remains attractive.
3.Nano Stone's hardness (7 on Mohs scale) guarantees jewellery durability without the loss of its original look. The Nanosital hardness index (7) is higher than glass (5), but lower than one of the hardest materials – corundum (9).
4.Its high melting point allows the use of any colored Nano Stone in lost-wax casting.
5.Color and transparency. Its wide color range, full correspondence to natural analogue, perfect optical properties, total transparency, and absence of inner defects makes Nano Stone one of the best, readily available rough jewellery material on the market.
Click the following Color Chart and Shapes & Size Chart to learn More.
- 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 Wuzhou City.
- Strict quality inspection:
- 15 production processes ; 9 inspection processes ; more than 8 experienced QC check ;
- Every gemstone has its quality assurance.
- 30 days return Policy without using and damage of the stones;
- Bulk product quality is not same as samples;
- Merchandise are not same as the order list;
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