The Roberto Coin Cento Diamond.
The Cento cut is a patented diamond design created by Italian jewelry designer Roberto Coin. Its name, which means 100 in Italian, sums up the cut’s unique look, which is based on 100 facets that form a symmetrical floral pattern. The Cento diamond is a modified brilliant cut available from SI to Internally Flawless. It has 9 bezel facets, 9 star facets, 18 upper girdle facets, 1 table facet, 54 lower girdle facets and 9 pavilion mains. The additional faceting allows light to reflect and refract, giving the diamond added brilliance, fire and scintillation in a harmonious combination. In other words, the cento diamond is super sparkly and made to be oohed and ahhed at.

The Roberto Coin Ruby.
The ruby has always been enveloped in a legendary aura, and due to its exceptional quality of maintaining beauty throughout time it is considered eternal, like true love.
According to an ancient belief, wearing a ruby close to the skin promoted long life, health and happiness and even today it is believed to possess these magic powers including the extraordinary ability of giving peace. In 1996, Roberto Coin started signing his jewels by setting a small ruby hidden on the inside of each piece, allowing the distinguished gem to kiss the skin.
Since then, this tradition has become the exclusive signature of every jewel by Roberto Coin, dedicated as a secret gift of good wishes to every woman lucky enough to wear one of his exclusive creations.