GRADING REPORT COT629

- Identification: Natural Unheated & Untreated Copper Tourmaline

- Carat: 6.29

- Shape: Oval

- Measures: 12.49x10.14x7.98 (millimeter)

- Color Grade: Excellent

- Tone: MD75

- Color Zoning: None

- Clarity: Lightly Included (see comment)

- Cutting Grade: Very Good

o       Brilliancy: 50%

o       Depth: 79%

- Origin: Mozambique

- Treatment: None

Certificate No: 0805127 (see more images)

Overall Grade: Very Good

Comment: Certified red copper tourmaline (cuprian) from Mozambique, before heating into "paraiba" tourmaline. Copper in red tourmaline (or rubellite) shows itself in an intense neon hue far beyond the usual rubellite. Best quality we could find in a year of searching. Some inclusions may be visible to the trained eye. Super sparkler in all light settings. Rare size and quality in cuprian tourmaline. Investment gem. 

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