BUYJEM • Factory Direct
Product details
For wholesale: specs extracted from product content and saved fields.
Ship from / originWuzhou Gemstone City
Category
Lab-grown Spinel / Loose Gemstones
Gem type
Lab-Grown Cobalt Spinel
Shape
Cushion
Size / weight
5×5mm – 12×12mm
Cut
Excellent
Color
Blue
Clarity
VVS
Certificate
AGL/GRC
Growth method (lab)
Czochralski method
Factory / supplier
5 Wuzhou gem processing enterprises
Chemical
MgAl2O4
Hardness
8.2
Refractive index
1.694
Specific gravity
3.58-3.61
Customization
Custom cutting available
For wholesale quotes, share quantity, size range, color/clarity, lead time, and destination.
This premium lab-grown cobalt blue spinel features a brilliant cushion cut. It is available in a range of sizes from 5x5mm to 12x12mm, showcasing excellent cut quality and VVS clarity. The gemstone possesses all the chemical, physical, and optical properties of its natural counterpart. Custom cutting is available upon request. Certificates from reputable labs such as AGL or GRC can be provided.