Accompanied by a Gubelin report stating that the natural ruby has no indications of heat treatment and originates from Tajikistan (Pamir). Report number 17012105, dated 30 January 2017. 

Note: Tajikistan

Situated within the Pamir Mountains, Tajikistan produces a variety of gemstones, including ruby, sapphire, spinel, aquamarine, chrysoberyl, tourmaline, topaz, garnet and many other less known gems.

Discovered during the late 1970s, the Snezhnoe ruby and sapphire deposit in Tajikistan was active until the collapse of the former Soviet Union in the early 1990s and the outbreak of regional conflicts. 

Gem quality ruby from the Pamir Mountains are known for their highly saturated, slightly pinkish red and 'pigeon's blood' rubies. 

Bonhams. RARE JEWELS & JADEITE, 31 May 2017, 15:00 HKT, HONG KONG, ADMIRALTY