4.03 ct Cushion Ruby, GRS, Mozambique Unheated

4.03 ct Ruby, cushion cut, from Mozambique. Unheated: the colour is as the stone formed, with no heat treatment. Mozambique has become the largest modern source of ruby. GRS report GRS2026-070183. Measurements: 9.93 × 7.95 × 4.93 mm. Our grading: fine quality intense red. Stock number CS-1288. 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.

“Intense” in its colour grade indicates strong, well-saturated colour. Its laboratory report is from GRS (GemResearch Swisslab), a Swiss laboratory widely used for coloured stones. Its length-to-width ratio is 1.25. Large enough to anchor a statement ring or pendant.

More like this: Mozambique Rubies · Unheated Rubies · Rubies · Unheated Gemstones · 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 Oval Ruby, GRS, Burma Unheated · 4.03 ct Round Ruby Pair (2.01 + 2.02 ct), GIA, Thailand Unheated · 4.04 ct Oval Ruby, GRS, Mozambique Heated

Further reading: Reading a GRS Report: Pigeon's Blood, Royal Blue, Vivid and the Comments Line · Rubies, Sapphires and Emeralds: Origin, Treatment and Value