American Firoza (Turquoise) 5.00 Carat (5.49 Ratti) — Stone Details
This is a loose American Firoza (natural turquoise) of 5.00 carat (5.49 ratti), oval cabochon, sky-blue and opaque—ready for a jeweller to set in a ring or pendant. If you are comparing American firoza stone with Irani (Persian) firoza, choose this listing when you want American turquoise; Irani stones are listed separately. What we state about USA / American origin follows the paperwork that comes with this stone—your certificate is the final word if anything differs.
Turquoise is a natural blue-green mineral (copper aluminium phosphate). More detail appears on Mindat — Turquoise. Our paperwork lists Unheated and Untreated and names the stone Natural Turquoise; if your report uses other words, trust the report. Hardness about 5–6 on Mohs; refractive index (R.I.) 1.61–1.65 as given on the report.
In India the same gem is called firoza or firoza stone. You will receive the printed lab report with the shipment—keep it for resale or personal records.
| Specification | Details |
|---|---|
| Weight | 5.00 Carat (5.49 Ratti) |
| Dimensions (L × W × H) | 12 × 10 × 6.1 mm |
| Colour | Sky blue |
| Cut / shape | Oval cabochon |
| Transparency | Opaque |
| Chemical composition | Hydrated copper aluminium phosphate (turquoise) |
| Hardness | 5–6 (Mohs) |
| Refractive index (R.I.) | 1.61–1.65 |
| Treatment | Unheated and Untreated (per report) |
| Indian name | Firoza |
| Gem type | Natural turquoise |
| Origin | USA — American firoza / American turquoise, as on lab report or supplier records |
| Report | Gem identification laboratory report included |
Care
Turquoise is soft and can absorb liquids. Do not soak it, and avoid ultrasonic cleaners, steam, and harsh chemicals (including household cleaners and some cosmetics). Store it apart from harder gems to avoid scratches. For buying tips in India—matrix, treatment, price—read our Turquoise (Firoza) buying guide.
Jewellery use
The oval cabochon works well in a bezel or a well-supported ring or pendant setting. Sky-blue turquoise looks good with silver, white gold, and yellow gold.
Every order includes the physical report. See more American firoza and Irani firoza sizes on our Turquoise stone (Firoza) collection at Ratna Gems.
Traditional use (belief-based)
Some people wear firoza for cultural or personal reasons. We do not promise health or astrology results. For chart-based advice, speak to a qualified astrologer.
