12# white sapphire corundum round shape 2mm3mm4mm5mm white sapphire stone

12# white sapphire corundum 

These sapphires have the same chemical compound as natural, mined from the earth, sapphires!

They will fit in most of our same sized calibrated settings

Chemical composition : Al2O3
Crystal Structure : Hexagonal 
Purity : 99.99% 
Refractive Index : 1.717 
Density : 3.98-4.1 g/cm3 
Hardness Mohs : 9 
Manufacturing Method : Verneuil, (Also called Flame Fusion)

Hanyu Jewelry Co.,Ltd established in 1997. Based in China with factories in Wuzhou. Hanyu Jewelry Co.,Ltd is highly specialized in cutting and polishing a wide range of loose gemstone, like synthetic cubic zirconia, glass stone, corundum, spinel and small natural stones,etc.

Our company has advanced equipment, excellent technology and professional workers, to provide comprehensive after-sales service in time. Our company has huge advantage and influence on the talents, resources, network, scale, and experience to satisfy each customer.

We put integrity as our purpose and based in “to quality for survival, to innovation for development, to management for efficiency” quality policy goals. Depend on good credit standing, our products are exported to Europe, America and the Middle East, Africa and southeast Asia, deeply domestic and foreign customers.

Thank you for taking the time to read our introduction. We look forward to have an opportunity to service you.

Products Range:  

Loose gemstone: cubic zirconia, glass stone, corundum, spinel, turquoise, opal, nano gems, small natural stone...

Jewelry: necklace, bracelet, earring, ring and so on.

1. Do you accept OEM service?

Yes. We accept OEM. More details please consult us.

2. Can I get some samples to check quality?

We can provide small amount of samples in stock for free. You just need to pay the freight charges.

<![if !supportLists]>3.<![endif]> Which gemstones are for casting and wax setting?

White cz gemstones, synthetic corundum, synthetic spinel, nano gems.

4. Would you share our information with anyone?

We will never sell, rent or share it with third parties, also the privacy and security are important to us as well.

5. After-sale Service?

The tracking number will be sent after delivery.

Please feel free to contact us within 3 days if any problem after received stones.

Notice: The price on Alibaba only for reference, which is maybe different from your order price. It affected by many factors, for example, material price, exchange rate and so on. So hope you can understand. Thank you.