A Ruby, Gold, Diamond & White Enamel Ring
Thailand is now a more common source of rubies than Burma. Thai rubies tend to contain iron as well as chromium, and therefore have an element of brown to their colour, often resembling garnets. Although, this tends to prevent the fiery fluorescence of a Burmese ruby as iron inhibits such a clean reflection of light, Thai rubies are still rich in colour. The best examples of Thai rubies often resemble a high-quality Burmese ruby.
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