GSI Issues India’s first Pigeon Blood reports
Jaipur, India —August 18, 2026 — Gemological Science International (GSI), one of the world’s largest gemological organizations, has begun issuing colored stone reports carrying recognized color trade names — Pigeon Blood for ruby, Royal Blue and Padparadscha for sapphire — in Jaipur and Mumbai. It is the first time such reports have been issued in India.
The designations are granted only to untreated stones. Heated, diffused or otherwise enhanced material is not eligible, regardless of color.
Each trade name is defined by documented, scientifically established criteria — specified ranges of hue, tone and saturation, assessed under standardized lighting and supported by spectroscopic and colorimetric analysis.
The definitions are identical at every issuing laboratory, maintained through shared master reference sets, calibrated instrumentation and proficiency testing of qualified gemologists. A stone assessed in Jaipur receives the same determination as it would in any other GSI laboratory.
For the Indian trade, the launch brings a capability domestically that has until now required consigning fine material abroad, with the attendant cost, transit risk, and delay.
“Jaipur has cut and traded the world’s finest rubies and sapphires for generations, yet a stone finished here has always had to travel abroad to carry a name like Pigeon Blood. That ends today. It is a matter of real pride that the first laboratory in India to define these names is doing so from the city that has shaped these stones for centuries — the expertise was always here, and now the authority is too.” Meenu Brijesh Vyas, Global Head Gemologist
The service is available now in Jaipur, Mumbai, New York, and Bangkok.
