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
Oval
Size / weight
3×5mm – 13×18mm
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 upon request
For wholesale quotes, share quantity, size range, color/clarity, lead time, and destination.
This lab-grown cobalt blue spinel features an elegant oval cut. Available in sizes from 3x5mm to 13x18mm, it boasts excellent cut, a vivid blue color, and VVS clarity. Shares identical chemical, physical, and optical properties with natural cobalt spinel. Custom cutting is available upon request.