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Specification
| Gem Type | Spinel | Weight | 1.62 ct |
|---|---|---|---|
| Primary Colour | Blue | Secondary Colour | Blue |
| Clarity | Eye Clean | Transparency | Transparent |
| Treatment | No Treatment | Verification Type | Silver |
| Shape | Oval | Dimension | 7.7 x 6.1 x 4.8 mm |
| Certificate Lab | GEMSTONESAFE LAB |
Certificate
| Date | : 19/01/2026 |
|---|---|
| Report No. | : GS-202601549 |
| Type | : Not Requested |
| Weight | : 1.62 ct |
| Dimensions | : 7.70 * 6.10 * 4.80 mm |
| Shape | : oval |
| Color | : blue |
| Transparency | : Transparent |
| Treatment | : Not Requested |
| Gem Type | : Spinel |
| Origin | : Not Requested |
| Comments | : Not Requested |
| Date | : 19/01/2026 |
|---|---|
| Report No. | : GS-202601549 |
| Type | : Spinel |
| Weight | : 1.62 ct |
| Dimensions | : 7.70 * 6.10 * 4.80 mm |
| Shape | : oval |
| Color | : blue |
| Transparency | : Transparent |
| Treatment | : Not Requested |
| Origin | : Not Requested |
| Comments | : Not Requested |
Description
SKU GS-550Natural Cobalt Spinel Sri Lanka - Danu Group
Cobalt Spinel is a rare, intensely blue natural gemstone valued for its sapphire-like color, achieved by cobalt coloring agents rather than iron, offering excellent durability (8 on Mohs scale) for jewelry, with sources in Vietnam, Tanzania, Sri Lanka, and Myanmar. Key features include its striking cobalt-blue to violet-blue hue, good clarity, hardness (7.5-8), and affordability compared to sapphire, often found untreated but sometimes heat-treated
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Verification Certificate
| Date | : 19/01/2026 |
|---|---|
| Report No. | : GS-202601549 |
| Type | : Not Requested |
| Weight | : 1.62 ct |
| Dimensions | : 7.70 * 6.10 * 4.80 mm |
| Shape | : oval |
| Color | : blue |
| Transparency | : Transparent |
| Treatment | : Not Requested |
| Gem Type | : Spinel |
| Origin | : Not Requested |
| Comments | : Not Requested |
| Date | : 19/01/2026 |
|---|---|
| Report No. | : GS-202601549 |
| Type | : Not Requested |
| Weight | : 1.62 ct |
| Dimensions | : 7.70 * 6.10 * 4.80 mm |
| Shape | : oval |
| Color | : blue |
| Transparency | : Transparent |
| Treatment | : Not Requested |
| Gem Type | : Spinel |
| Origin | : Not Requested |
| Comments | : Not Requested |
| Date | : 19/01/2026 |
|---|---|
| Report No. | : GS-202601549 |
| Type | : Spinel |
| Weight | : 1.62 ct |
| Dimensions | : 7.70 * 6.10 * 4.80 mm |
| Shape | : oval |
| Color | : blue |
| Transparency | : Transparent |
| Treatment | : Not Requested |
| Origin | : Not Requested |
| Comments | : Not Requested |