Siam-Thailand Ruby Gemstones

Siam rubies from Thailand are distinguished by their deep garnet-red to brownish-red hues that have defined the ruby market for generations. Our collection features select loose rubies from Thailand's historic mining regions, each showcasing the characteristic deep color saturation that has made Thai rubies a classic choice among collectors.
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Color

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Shape

Diamond shape refers to the overall outline and facets of a diamond. It’s a crucial factor that affects a diamond’s brilliance, fire, and scintillation – its ability to reflect light and sparkle.

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Origin

Treatment

Treatment

Carat weight

Carat weight

Diamond weight, also known as carat weight, is a measure of a diamond’s mass. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

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1 items

2.60 Oval Shape Thailand Ruby CGL

10,800.00$

FREQUENTLY ASKED QUESTIONS

What distinctive qualities do Thai ruby gemstones offer collectors?

Thai ruby gemstones offer collectors a classic deep red to garnet-red color profile with excellent durability and consistent quality. Their distinctive darker tones create a sophisticated aesthetic that appeals to those preferring subdued elegance over brighter hues. Thai rubies typically provide excellent value for purchasers seeking genuine precious stones with historical significance at a more accessible price than Burmese specimens while maintaining impressive color saturation and natural beauty.

How does the color of Thai rubies differ from other origins?

Thai rubies display a characteristic deep red to burgundy hue that distinguishes them from the brighter Burmese or Mozambique stones. This darker color profile often contains subtle brown or purple secondary tones that create a uniquely rich aesthetic. While not achieving the pure red of premium Burmese stones, high-quality Thai rubies offer excellent value with their distinctive color saturation that showcases the natural beauty of these rare precious stones.

Are loose Thai ruby gemstones a good value alternative to Burmese stones?

Loose Thai ruby gemstones offer exceptional value, typically costing 50-60% less than Burmese rubies of comparable size and clarity. Their deep, saturated color and excellent durability make them worthy investments for collectors seeking genuine, conflict-free rubies with distinctive character. While their darker tones may not command the premium prices of “pigeon blood” red Burmese stones, well-cut Thai rubies provide excellent cost-to-quality ratio with their rich aesthetic appeal.

What inclusions are typically found in Thai rubies?

Thai rubies commonly contain distinctive rutile silk inclusions and occasional iron-based mineral deposits that gemologists use to verify their natural origin. These characteristic internal features rarely compromise the stone’s durability or beauty while confirming its genuine character. When purchasing Thai rubies, seek GIA certified specimens where these natural inclusions are well-distributed and don’t significantly impact the stone’s transparency or overall value as a precious investment-grade gemstone.