4.03 ct Round Ruby Pair (2.01 + 2.02 ct), GIA, Thailand Unheated

4.03 ct Ruby (2 pieces), round cut, from Thailand. Unheated: the colour is as the stone formed, with no heat treatment. Thai (Siam) rubies are known for a deep red, a result of their higher iron content. GIA report 3465480067. Measurements: 2.01 ct: 7.89 × 7.78 × 4.05 mm; 2.02 ct: 7.83 × 7.79 × 4.27 mm. Our grading: gem quality vivid red (pigeon blood). Matched pair of 2 stones: 2.01 ct (stock CS-0764) and 2.02 ct (stock CS-0771), total weight 4.03 ct. Reports: GIA# 3465480067 (2.01 ct); GIA# 6223553903 (2.02 ct). Stock number CS-0764. The video on this page was filmed in our office, unedited and unfiltered. Approved trade buyers can sign in on this page for pricing, or WhatsApp or email us about this stone. Viewings by appointment in Toronto, Hong Kong, Bangkok and Dubai.

The term pigeon’s blood in its colour grade is the trade’s name for the finest saturated, slightly bluish red in ruby. Their laboratory reports are from GIA, the Gemological Institute of America. Paired stones like these are made for earrings or the shoulders of a three-stone ring.

More like this: Pigeon's Blood Rubies · Unheated Rubies · Matched Pairs · Calibrated Gemstones · Rubies · Stone search

Similar stones: 3.93 ct Oval Ruby, GIA, Burma Heated · 3.95 ct Emerald Cut Ruby, GRS, Mozambique Unheated · 3.98 ct Cushion Ruby · 4.02 ct Oval Ruby, GRS, Mozambique Unheated · 4.03 ct Oval Ruby, GRS, Mozambique Heated · 4.03 ct Cushion Ruby, GRS, Mozambique Unheated · 4.03 ct Oval Ruby, GRS, Burma Unheated · 4.04 ct Oval Ruby, GRS, Mozambique Heated

Further reading: Rubies, Sapphires and Emeralds: Origin, Treatment and Value · A Gemstone Encyclopedia for Trade Buyers