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Unheated Color-Shift Sapphire 1.39 Carat (CKS139)

Kashmir blue color shift sapphire
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1.39 Carat
Fine Kashmir Blue
Medium Dark 80
Lightly Included



  • Identification: Natural Unheated & Untreated Sapphire
  • Carat: 1.39
  • Shape: Cushion
  • Measures: 5.83x5.11x5.00 (millimeter)
  • Color Grade: Excellent+
  • Tone: MD80
  • Color Zoning: None
  • Clarity: Lightly Included
  • Cutting Grade: Very Good (cut in Germany)
    • Brilliancy: 66%
    • Depth: 85%
  • Origin: Madagascar
  • Treatment: None

Certificate No: DSEF 024749

Overall Grade: Excellent

Comment: Sleepy Kashmir blue in the most sought after 'never-black-always-blue' hue at day and an charming colour-shift towards softer red-purple-violet at night. Cut in Germany with an eye on preserving the precious material, a 100% perfect finish with elegant shape. Certified unheated with origin, by the honourable 'German Foundation of Gemstone Research' (DSEF). Smack in the middle of the most famous sapphire colour and, with softer light, shifting (I use the word on purpose) to become more violet and purple but only as an additional hue and tone; not a radical change as in the green-red/pink/purple varieties. Other than in those gems, the mild transformation of hue is not difficult or demanding to understand (please ask if this is not clear). No inclusions are visible to the unaided eye (lens only). See one of the additional images where I forced the camera to focus through the stone and onto the back of the gem - great crystal! Clean unheated Kashmir-blue sapphire, never cheap unless fake.

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