JSjewelrythai

 BLACK GREEN STAR 3.70 CT GEMS  ID-100478

Each of these minerals. Can be scraped ore Those with lower numbers. But it can not be scratched. For example, 10 solid diamonds can scratch all kinds of hard corundum 9 can not scratch the diamond. However, it can scratch the top quartz hardness of the quartz hardness as follows: gems of equal hardness. Can scratch to scratch it. Hardness of the same gem There may be slight variations in composition. And the nature of the island group of mineral meat. Or by decay This hardness value. The hardness is only comparable. Not a hardness measurement unit. Difference in hardness in each level is not equal, such as the difference in hardness between diamond and corundum. It is not equal to the difference in hardness between corundum and topaz. Generally, gemstones with a hardness of 7 or more are durable and suitable for everyday wear. To determine the type of gemstones. Hardness tests are not commonly used. This will cause the gems to be damaged. And may ruin the aesthetic value. But sometimes it may be. In case of necessity for unmade or carved gems, which are translucent to opaque. But should not be used to test the transparent gems and diamonds.

Note :The color of the real object will be a little different as the photos showed due to different monitors        

Payment Policy:

I accept Only PayPal for payment. 

The items will be shipped within 2 business days after payment.

Shipping & handling Policy:

Free Shipping Handling WORLDWIDE. The package will be shipped by USPS directly from Thailand via Standard Small package Airmail, and it will take about 11-23 business days.

Guarantee Policy:

100% Satisfaction Guarantee: If you are not satisfied with the product you purchased for any reason, please contact us for a return instruction within 30 days for a refund. Shipping Handling costs are not refundable. Return shipping cost will be paid by buyer.

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