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.