GRADING REPORT BST831

- Identification: Natural Unheated & Untreated Blue Star Sapphire

- Carat: 8.31

- Shape: Oval

- Measures: 10.31-13.52x5.10 (millimeter)

- Color Grade: Very Good

- Tone: MD75

- Color Zoning: Visible Growth Lines

- Clarity: Opaque with minor visible inclusions

- Finish: Very Good

o       Star: Good (10 degree off-centered, full 6-legged, well traveling)

o       Depth: 50% (no excess weight)

- Origin: Bible, Sri Lanka

- Treatment: None

Certificate No: 18070027 (see more images)

Overall Grade: Good

Comment: Hard to find color with a sharper-than-image star. Giant but not too bulky for a men's ring. Facet-quality saturation of the best Ceylon cornflower blue. Hardly any inclusions. Horizontal and parallel growth lines (see additional pictures) testify to the thousand of years such a crystal needed to grow in ancient times of earth. Though not too sharp, the star is clearly visible, linear and symmetric, even without a strong torch. This color strength is rare in stars.

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