natural loose gemstone round bue topaz price per carat

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.

D&T gems co., LTD. is one of the biggest manufacturers of Wuzhou .
We have more than fourteen years of production experience on natural gemstone.
We have professional punching,cutting and polishing team.
Our company focus on natural gemstone,and also making some kinds of synthetic gemstone.
Ruby / Sapphire / Yellow sapphire / White sapphire / Black sapphire / aquamarine .
White topaz / Sky blue topaz / Swiss blue topaz / London blue topaz .
Purple garnet / Red garnet / Rose Red garnet / Yellow garnet / Tsavorite .
Smoky quartz / Citrine / Amethyst / White crystal / Black spinel / Quartz rutilated .
Green agate / Black Onyx / Red agate / Ribbon agate .
Peridot / Diopside / Tanzanite / Prehnite / Natural white zircon .
Synthetic nano glass / Synthetic spinel / Cubic zircon / Synthetic corundum / Synthetic opal .
Our monthly output of more than 5 million, are mainly exported to India, Thailand, Vietnam, the United States, Poland, Switzerland, Brazil and other countries.
D&T gems takes the concept of customer first, to meet customer needs at the same time, constantly develop new products, constant innovation.
Quality excellence, to achieve mutual benefit and win-win results, D&T gems win a good reputation among our customer.