A+ :side line is uniform; color is uniform; high-low is uniform; but size will have 0.02mm deviation,this is normal;no eye visible from inclusion and crack, but in microscope have some ; good angle form line.

A :Color have some non uniform but still relatively uniform; good angle form line and uniform side line; eyes see have 10%around inclusion and crack.

A- : Color have severity non uniform, good angle form line,eyes see have 30%around inclusion and crack.

AB :Color non uniform,quality is bad,eyes see have more inclusion and crack.

Our company is one of the largest manufacturers in China.

We have more than 14 years of production experience.

Focusing on natural loose gemstone and synthetic loose gemstone.

We have professional punching, cutting and polishing team.

We have the best quality inspection team.

Customer interests first and seek win-win is our company's goal.

We will provide our customers with the best quality sevices and products.

Welcome to contact us for cooperation!

About Shipping

1) If you have any Express Delivery Account No. Please let us know before shipping.

2) DHL is ourdefault way for shipping, as it's the most economical and practical way to ship your goods.

3) We will send you the tracking No. As soon as goods been shipped.

4) Delivery Time: usually 3-5 workdays, not include remote area.

5) If you want to send us sample, please contact with us, do not send sample with the address on package.

6) If there's any problem ragard delivery or goods, please contact with us within 3 workdays after received the package.