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
Square/Princess
Size / weight
2x2mm – 10x10mm
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 features a precise princess cut, showcasing its vibrant color and brilliance. Available in a range of sizes from 2x2mm to 10x10mm, each stone boasts VVS clarity and an excellent cut for maximum sparkle. It shares the identical chemical composition (MgAl2O4) and optical properties, including a refractive index of 1.694 and hardness of 8.2, with natural spinel. Custom cuts are available to meet specific design requirements, offering versatility for jewelers and designers.