1.51 Ct. Ruby from Tanzania

This transparent 1.51 carat pear shape ruby measures 9.03 by 6.42 by 3.72 mm, and features a mixed brilliant cut that optimizes scintillation and face up brightness, with an excellent polish that enhances windowing control and light return. The gem is graded very slightly included at eye level, which for an educated buyer indicates small internal characteristics that do not materially detract from the gem when set, and which are typical of natural rubies of this weight and clarity category. The color is described as pinkish red with vivid color intensity, a saturation that sits between true pigeon blood red and more pink dominated rubies, giving it a lively and modern appearance. The stone has been heat treated, which is a widely accepted enhancement in the trade that stabilizes and intensifies color, and the origin is Tanzania, a source known for producing stones with vibrant pink to raspberry red tones.

When comparing hue and tone, this Tanzanian ruby presents a pinkish red hue that is brighter and slightly lighter in tone than classic Burmese rubies, Burmese stones often showing a deeper pure red with a velvety tone that collectors prize. Compared to Mozambique material, which can exhibit a richer purplish red tone, this ruby leans more toward the pink side of the spectrum, offering a fresher and more vivid appearance. In contrast to Thai and historical Siamese rubies that tend to carry darker, brownish tones, this example remains clean and lively, closer in spirit to recent Winza and Morogoro finds that favor intense pinkish red hues over brown modifiers. Compared to Sri Lankan rubies, which can be paler and more pink, this stone maintains stronger saturation and a warmer red presence that will perform well under both daylight and incandescent lighting.

For the educated buyer the combination of vivid color intensity, transparent clarity at an eye level grading of very slightly included, and a precision mixed brilliant cut make this 1.51 carat pear a compelling choice for both fine jewelry and collector holdings. The heat treatment is fully disclosed, and the Tanzanian origin adds provenance interest as East African rubies continue to gain market recognition. The Natural Ruby Company is pleased to offer this fine example, and we can provide additional images, bespoke mounting recommendations, and third party report options upon request.