Return of light: How brilliant diamonds are measured.

The Leo Diamond's superior brilliance , while visible to the naked eye, is also a benefit that has been measured and certified using state-of-the art optical technology.

When a diamond is cut to good proportions, light is refracted from one facet to another, then dispersed through the top. Simply put, the Return of Light is the amount of light returned through the top of the diamond and directed to you – the true brilliance and beauty of the stone.

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.

The charts below indicate how The Leo Diamond's Return of Light clearly outperforms that of a conventionally cut diamond.