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 blue spinel
Shape
Baguette step cut
Size / weight
2×4mm – 8x16mm
Cut
Excellent
Color
Blue
Clarity
VVS
Certificate
AGL/GRC
Growth method (lab)
Czochralski method
Factory / supplier
4 Wuzhou gem processing enterprises
Chemical
MgAl2O4
Hardness
8.2
Refractive index
1.694
Specific gravity
3.58-3.61
Customization
Custom cuts available
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This lab-grown cobalt blue spinel is precision-cut into a classic baguette step shape. It offers a vibrant blue color with VVS clarity and an excellent cut. Available in a range of sizes from 2x4mm to 8x16mm. Custom cuts can be produced upon request. The gemstone is produced using the Czochralski method and has a hardness of 8.2, a refractive index of 1.694, and a specific gravity of 3.58-3.61. Certificates from AGL or GRC are available.