0.77 ct Cushion Ruby, Siam Heated

Name: 0.77 ct Cushion Ruby, Siam Heated video
Uploaded: 2026-11-10T00:13:28.539Z
Description: Its length-to-width ratio is 1.06, close to square. A good size for a solitaire ring, a halo design or a pendant.

0.77 ct Ruby, cushion cut, from Siam. Heated, the long-established and stable treatment for rubies and sapphires, accepted across the trade. Thai (Siam) rubies are known for a deep red, a result of their higher iron content. Offered without a laboratory report. Measurements: 5.4 × 5.1 mm. Stock number CS-1171. 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.

Its length-to-width ratio is 1.06, close to square. A good size for a solitaire ring, a halo design or a pendant.

More like this: Rubies · Stone search

Similar stones: 0.69 ct Pear Ruby · 0.71 ct Oval Ruby, GRS, Thailand Heated · 0.72 ct Oval Ruby, GRS, Burma Unheated · 0.75 ct Oval Ruby · 0.77 ct Oval Ruby, GRS, Burma Unheated · 0.78 ct Oval Ruby, GRS, Burma Unheated · 0.80 ct Cushion Ruby, Thailand Heated · 0.80 ct Cushion Ruby, Thailand Unheated

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