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.

The service is available now in Jaipur, Mumbai, New York, and Bangkok.

Courtesy: AOJ NEWS DESK