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
Marquise
Size / weight
2x4mm – 7x14mm
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 offers the beauty and durability of natural spinel in a striking marquise shape. Available in a range of sizes from 2x4mm to 7x14mm, each stone features an excellent cut and VVS clarity for exceptional brilliance. The vibrant cobalt blue color is consistent and eye-catching. Custom cuts are available to meet specific design requirements. It shares all the chemical and physical properties of its natural counterpart, including a hardness of 8.2 and a refractive index of 1.694.