Geographic Origin:
Mogok - Burma (Myanmar)

Treatments:
Unheated with indications of clarity enhancement with oil

Gemologist's Comments on Treatments:
As a business policy, we don't stock heated, treated, or enhanced gemstones. However, some Burmese rubies invariably come into contact with oil during their life, from mining to cutting/polishing to selling. This is because oil is commonly used as a lubricant for cleaning/storing rough rubies and facilitating the cutting/polishing process.

Also, due to their natural growth conditions and recovery methods, almost all Burmese rubies contain surface-reaching features. Therefore, the oil may seep into these features even when not intended as a treatment.

For this reason, clarity enhancement - particularly with oil - is a common and widely accepted trade practice for Burmese rubies.

While this particular ruby is unheated, indications of clarity enhancement with oil are observed.

Transparency:
Semi-Transparent

Clarity Grade:
Not Applicable

Gemologist's Comments on Clarity:
Due to their natural growth conditions and recovery methods, rubies from Burma (Myanmar) commonly have features such as growth tubes, fingerprint inclusions, rutile silk clouds, and other microscopic inclusions that may affect the transmission of light to a certain extent. For this reason, despite being fully transparent, Burmese rubies may not show luster & scintillation as prominently as rubies from other localities.

Large Size:
The size of this gemstone is large compared to the commonly available sizes in this species/variety, making it rare and highly sought-after.

This item is accompanied by the following gemological reports. We will ship the original reports along with the item.

GRS Gem Research Swisslab report # GRS2025-072079

• The accompanying GRS report authenticates this gemstone as a "Natural Ruby" of "Burma (Mogok, Myanmar)" origin with a comment stating "No indication of thermal treatment. Indication of clarity enhancement in fissures ('oiled')".

International Gemological Institute report # 713503720

• The accompanying IGI report authenticates this gemstone as a "Natural Ruby" of "Burma" origin with a comment stating "No indications of treatment have been found".