Painite
Overview
Painite is one of the rarest gemstones in the world and was long considered the rarest gemstone of all. The mineral was first discovered in 1951 in Myanmar (Burma) and named after the British mineralogist Arthur Charles Davy Pain.
For decades, only a few crystals were known worldwide. It was only through new finds in the Mogok and Wetloo regions of Myanmar that further specimens were discovered, yet facet-grade material remains extraordinarily rare.
Mineralogical Data
| Property | Value |
|---|---|
| Mineral Group | Borate |
| Chemical Formula | CaZrAl₉O₁₅(BO₃) |
| Crystal System | Hexagonal |
| Mohs Hardness | 7.5 – 8 |
| Refractive Index | 1.787 – 1.816 |
| Density | 3.98 – 4.10 |
| Transparency | Transparent to opaque |
| Luster | Vitreous |
| Cleavage | No distinct cleavage |
Color
Painite typically exhibits:
- Reddish-brown
- Brownish-red
- Orange-red
- Dark red
- Reddish-brown with coppery reflections
The most intense specimens possess a rich red-orange to ruby-red color.
Origin
Virtually all commercially relevant material originates from:
- Mogok, Myanmar
- Wetloo, Myanmar
Myanmar is considered the classic and most important source for Painite.
Rarity
For decades, Painite was practically unobtainable.
In the 1980s, only a few crystals were known worldwide. This led to Painite even being listed in the Guinness Book of Records as the rarest gemstone on Earth.
Although several thousand crystals are known today, the following remain:
- transparent material is rare,
- facet-grade material is very rare,
- high-quality faceted stones are extremely rare.
Larger, eye-clean specimens over 1 ct are particularly sought after.
Inclusions
Natural Painite often shows:
- Healed fractures
- Fingerprint structures
- Mineral inclusions
- Growth zones
- Tube-like structures
Completely inclusion-free stones are unusual.
Faceted Specimens
Painite is often cut as:
- Oval
- Cushion
- Trillion / Trilliant
- Emerald cut
- Fancy cut
Due to its rarity, material yield often takes precedence over perfect cutting proportions.
Value Drivers
The most important price factors are:
1. Color
Most desired:
- intense red
- red-orange
- "Ruby Red"
Less sought after:
- brown
- very dark specimens
2. Clarity
Eye-clean Painites command significant price premiums.
3. Size
Stones over:
- 1 ct are rare
- 3 ct are very rare
- 5 ct+ are exceptional collector's items
4. Origin
Myanmar is the classic origin and market standard.
5. Laboratory Report
Recognized certificates significantly increase market acceptance.
Market Value
Typical market prices for faceted Painites:
| Quality | Price per Carat |
|---|---|
| Commercial | 1,000 – 3,000 USD |
| Good Collector Quality | 3,000 – 8,000 USD |
| Eye-clean, Intense Color | 8,000 – 20,000 USD |
| Top Quality | 20,000 USD+/ct |
Exceptional pieces can achieve significantly higher collector prices.
Investment Potential
Painite is one of the most famous rare gemstones.
Positives:
- legendary reputation as the "rarest gemstone"
- low availability of high-quality faceted stones
- strong demand from collectors of rare minerals
Negatives:
- small market
- limited number of buyers
- lesser-known than ruby, sapphire, or tsavorite
For specialized collectors, however, Painite represents one of the most fascinating rare stones in the gemstone market.
Summary
Painite combines extreme rarity, attractive red-orange hues, and an extraordinary history. High-quality faceted specimens from Myanmar are among the most coveted collector's gemstones in the world, and are particularly rare in sizes over 3 ct.