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
Heart
Size / weight
5×5mm – 10×10mm
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 heart-cut lab-grown cobalt blue spinel offers VVS clarity and an excellent cut. It is available in sizes ranging from 5x5mm to 10x10mm and shares all the chemical and optical properties of its natural counterpart. The gemstone is produced using the Czochralski method and has a hardness of 8.2. Custom cuts are available upon request.