11.8ct Spinel Crystal, Mahenge — demonstration record, not for sale
11.80 ct · Spinel · (rough)
Cut stone
2.68 ct · Spinel
The Mahenge pink that made spinel's reputation, loupe clean and precision cut.
$13,400
$5,000.00 per carat · AUD, GST included where applicable
Demonstration record
This example is here to show the disclosure format. It is not real inventory, does not enter product feeds and cannot be reserved or purchased.
Mahenge spinel does something almost no other pink stone does — it holds its saturation well under weak light. This one is loupe clean and precision cut with a good, tight cushion.
Spinel is essentially never treated, and the GIA report confirms no indications of heating for this stone. It is still priced well under a pink sapphire of the same quality, which continues to be the best argument for buying it.
| Form | Cut stone |
|---|---|
| Species | Spinel |
| Weight | 2.68 ct |
| Shape | Cushion |
| Measurements | 8.8 × 7.1 × 4.9 mm |
| Colour | Hot pink with a trace of orange |
| Colour family | Pink |
| Clarity | Loupe clean |
| Cut | Cushion brilliant, precision cut |
| Origin | Mahenge, Tanzaniastated on the GIA report |
No indications of heating
No heat and no other treatment of any kind.
How we know
No indications of heating (GIA).
GIA reportGIA-2264188011
Natural spinel, Tanzania, no indications of heating.
Issued 2 May 2026. The report travels with the stone.
Every listing on this site states its treatment, including when the honest answer is that we don’t know. How we describe stones.
This is an educational record. Its values demonstrate the format and do not represent an owned stone or publication-approved evidence file. It cannot be purchased or exported as a product.
No carrier promise is inferred from this page. At checkout the live service must find a recently verified route that accepts loose gemstones, the destination and the full declared value.
You have seven days from delivery to request a change-of-mind return, in addition to rights under Australian Consumer Law. Read the inspection and return process.
Keep the stone loose, dry and separated from harder material. Do not use heat, chemicals, ultrasonic cleaning or steam without advice specific to the species, treatment and condition. Rough and specimens should not be altered during the inspection period.
Demonstration data has no commercial disclosure version.
11.80 ct · Spinel · (rough)
4.12 ct · Spinel