GRADING REPORT CCSA136

- Identification: Natural Unheated & Untreated Color Change Sapphire

- Carat: 1.36

- Shape: Oval

- Measures: 5.73x6.70x4.22 (millimeter)

- Color Grade: Good

- Tone: L30

- Color Zoning: None

- Clarity: Free of Inclusions

- Cutting Grade: Very Good

o       Brilliancy: 80%

o       Depth: 74%

- Origin: Umba Valley, Tanzania

- Treatment: None

Certificate No: 474514 (see more images)

Overall Grade: Very Good

Comment: Though visible in person (and certified as a color changer) we could not capture both subtle hues of this gem separately. In mixed light it presents a charming light violet together with an aqua green. Uncommon but sought-after color change variety in sapphire (not blue to purple, but violet to green). Free of inclusions, well cut and a lively luster. Delicate individual gemstone. Better than image. 

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