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What is a Thai ruby?
1 Answer

A Thai ruby is a deep red corundum gemstone that originates from mines located in Thailand. You will sometimes see them referred to as Siamese rubies because the country was known as Siam until 1939. Find a variety of Thai ruby gemstone jewelry on 1stDibs.
1stDibs ExpertApril 5, 2022
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Shop for Thai Ruby Ring on 1stDibs
GIA Certified 3.85Ct No Heat Thai Ruby Ring
Located in San Diego, CA
This is an incredible 3.85Ct Cushion Ruby that originates in Thailand and is not heated. The color
Category
21st Century and Contemporary American Contemporary Cocktail Rings
Materials
Ruby, Platinum
$235,000 / item
2.03 Carat Oval Thai Ruby Ring W/1.08 Carat TW of Diamonds in 18k WG W/Palladium
Located in New York, NY
Oval Thai Ruby, 2.03 Carat. 1.08 Carats total weight of round brilliant diamonds G/H color, VS
Category
2010s American Modern Cocktail Rings
Materials
Diamond, Ruby, 18k Gold, Palladium
$23,250
Free Shipping
Edwardian 1.00 Carat Siam Ruby and 1.12 Carat Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
is further marked with the contemporary engraved inscription '1903'.
The Siam ruby ring with
Category
Antique Early 1900s British Edwardian Cocktail Rings
Materials
Ruby, Diamond, 18k Gold, Yellow Gold
1.70 Carat Siam Ruby and 3.02 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
fineness mark (PT950) and the maker's mark (EM).
The Siam ruby ring is supplied with two independent
Category
Vintage 1950s Unknown Cocktail Rings
Materials
Diamond, Ruby, Platinum
Non Heated 1.03 Carat Thai Ruby and Diamond Cluster Ring in Yellow Gold
Located in Jesmond, Newcastle Upon Tyne
Analyzer) and verified as 18k gold and platinum.
The Thai ruby ring is supplied with an independent
Category
Vintage 1930s Unknown Cluster Rings
Materials
Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Platinum
Royal 19th Century Siam Diamond and Ruby Ring
Located in London, GB
ruby and diamond ring was intricately crafted in high-karat gold, by the goldsmiths of the royal Siam
Category
Antique Mid-19th Century Thai Band Rings
Materials
Diamond, Ruby, 22k Gold