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The Leo Diamond®
Leo Diamonds The very first diamond to be independently measured and certified for its superior brilliance. Like every diamond at Kay, every Leo Diamond® is hand selected to match beautifully. We're proud to be your authorized Leo Diamond® Jeweler.
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Scientifically proven to be more beautiful.
Today, GemEx Systems, an independent gemological laboratory, uses a tool called a BrillianceScope - to measure Return of Light from different angles. It is both a scientific and objective method of evaluating a diamond. The BrillianceScope uses five lighting angles to measure the stone with precision and accuracy.
Every Leo Diamond is measured and certified for superior Return of Light, and comes with written certification . Leo Diamonds are proven in this way to be more brilliant than other diamonds of comparable quality.
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