4 0 ct hpht rough uncut diamonds

Brand Name:YUDA CRYSTAL

Model Number:YD-A

Place of Origin:ZHENGZHOU, CHINA

...: one is high pressure and high temperature method (HPHT), the other is chemical vapor deposition method (CVD). High temperature and high pressure catalytic technology (HPHT) simulates the natural environment in which diamonds form 150 kilometers below

Brand Name:Infi

Model Number:cs

Place of Origin:China

... 0.05-0.1ct , 0.1-0.5ct , 0.5-1ct , 1-2ct . Package Plastic bag,carton Grade Picture Carat mm size Grade 1 0.5-1.0 ct 4.0-5.5 mm 1.0-1.5 ct 5.0-6.0mm 1.5-2.0 ct 5.5-6.5mm 2.0-2.5 ct 6.5-7.5mm 2.5-3.0 ct 7.0-8.0mm 3.0-4.0 ct 7

Brand Name:Infi

Model Number:JSBD

Place of Origin:Hunan, China

...rough diamonds hpht yellow industry diamond sharp point MCD Specification: Product name octahedron rough diamonds hpht yellow industry diamond sharp point MCD Usage Grinding Color Fancy yellow Applied Uncut diamond Warranty 3 years Type Synthetic (lab created) Abrasive Grain Sizes 0.1-0.15ct MOQ 5 ct 1.HPHT...