GRADING REPORT OBS073

- Identification: Natural Unheated & Untreated Sapphire

- Carat: 0.73

- Shape: Oval

- Measures: 6.19x4.92x3.15 (millimeter)

- Color Grade: Very Good

- Tone: L20

- Color Zoning: None

- Clarity: Free of Inclusions

- Cutting Grade: Excellent (precision cut)

o       Brilliancy: 90%

o       Depth: 64%

- Origin: Montana, USA

- Treatment: None

Certificate No: 11120146

Overall Grade: Excellent

Comment: Adamantine bright blue-green sapphire from the USA. As clean as an icy mountain stream and exactly in that color. Fine American precision cutting. Beats the fun out of any diamond. Good value from old stock. Watch untreated Montana sapphire quadruple in value this decade as people get sick of gemstone treatments. Lucid and crisp crystal. Purist gemstone beauty.

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