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 Myanmar (Burma) in 1951 and named after the British mineralogist Arthur Charles Davy Pain.
For decades, only a few crystals were known worldwide. Only through new finds in the Mogok and Wetloo regions of Myanmar were more specimens discovered, yet facet-grade material remains exceptionally rare.
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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 copper-colored reflections
The most intense specimens possess a rich red-orange to ruby-red color.
Origin
Almost all commercially relevant material comes 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 Painite to be included in the Guinness Book of World 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:
- Healing fractures
- Fingerprint structures
- Mineral inclusions
- Growth zones
- Tubular 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 usually takes precedence over perfect cutting proportions.
Value Drivers
The most important price factors are:
1. Color
Most desirable:
- 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. Lab 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's 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.
Positive:
- legendary reputation as the "rarest gemstone"
- low availability of high-quality faceted stones
- strong demand from collectors of rare minerals
Negative:
- small market
- limited number of buyers
- less recognition than ruby, sapphire, or tsavorite
However, for specialized collectors, Painite represents one of the most fascinating rarity 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 sought-after collector's gemstones in the world, and are particularly rare in sizes over 3 ct.