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Unheated Mozambique Ruby 1.38 (RRCR138)

square cushion no heat ruby
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1.38 Carat
Neon Red
Medium Dark 70
Lightly Included



  • Identification: Natural Unheated & Untreated Ruby
  • Carat: 1.38
  • Shape: Squarish-Round Cushion
  • Measures: 6.07x5.61x4.16 (millimeter)
  • Color Grade: Excellent
  • Tone: MD70
  • Color Zoning: None
  • Clarity: Lightly Included
  • Cutting Grade: Very Good
    o Brilliancy: 95%
    o Depth: 74%
  • Origin: Mozambique
  • Treatment: None

Certificate No: GRS 030295t


Overall Grade: Excellent

Comment: Most powerful luster AND color in this ruby from Mozambique. Fresh red with a tint of purple and violet. Inclusions only under the lens. With 95% brilliancy perhaps the most sparkly ruby in our all-unheated collection. Squarish-round cushion in flawless handcut. No black-out and never pink (though the border between red and pink is a Q of taste). See glow in handshot, all captured with just a little natural daylight, indoors, on a not-sunny day (with sunshine, even if only outside, good rubies explode in fluorescence that must be edited out later). Not a shy character. The outer shape sits between 'just rectangular' or 'almost round' cushion, also a Q of personal taste or definition. In either case a rare and most-wanted shape in ruby. No window, no inclusions, no treatments, 3Nos, thereby immediately in the top 10% of all no-heat natural rubies (or top 0.1% of all available rubies including reconstituted and lead-glass filled gems but excluding synthetic). Add fine color, 95% luster and good proportions and the air gets thin even at 15k/ct. Vibrant sight for a max ring size 7, or 8 with halo, but also down to 3.5. As always, compare images with and without luster to get fullest color impressions.

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