The Leo Diamond ® The first diamond ever measured and certified for superior brilliance and beauty.

Introducing some of the world's most brilliant diamonds. The patented Leo Diamond is truly a diamond like no other. It is designed and handcrafted by the skilled diamond artisans at Leo Schachter , a company that has built its reputation over four generations as one of the world's leading manufacturers of fine diamonds.

For over half a century, Leo Schachter has quietly provided exquisitely crafted diamonds to the most elegant shops of Fifth Avenue , the fashionable boutiques of Rodeo Drive , as well as the foremost jewelers of London, Paris and Italy . Only within the last few years, however, has Leo Schachter introduced diamonds that bear the company name – first and foremost The Leo Diamond – available exclusively through authorized Leo Diamond jewelers

The patented Leo Diamond is recognized as a breakthrough in the technique and craft of diamond cutting. The unique symmetry and placement of its facets result in fire, sparkle and brilliance that will take your breath away. The beauty of a diamond is determined by its brilliance .

See the gorgeous selection of Leo Diamonds and Leo Diamond jewelry now available. They are unique and honestly the most brilliant diamonds intheir class.

Return of light: How brilliant diamonds are measured.

The Leo Diamond's superior brilliance , is not only visible to the naked eye, but can be 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.

Return of Light is affected by three important factors: White Light, colour Light and Scintillation. With many conventional diamonds, the cut may allow light to escape through the side, so less light is returned back to you.

The Leo's patented symmetrical cut allows light to enter the stone in such a way that the maximum amount of light is returned back in a sparkling flash known as scintillation. This is the secret of making a truly brilliant diamond.

So, now that you know why Leo Diamonds are the most brilliant and beautiful diamonds in their class, why not take a look at the gorgeous selection of Leo Diamonds and Leo diamond jewelry now available at authorized Leo Schachter jewelers.