Round brilliant is by far the most popular diamond shape and is one of the hardest to cut. It was invented by a mathematician from Belgium, Marcel Tolkowsky, in 1919. He came from a family of diamond cutters, and that year he wrote his doctoral thesis on diamond proportion and symmetry before pioneering the cut that millions of people have worn on their engagement fingers. The round brilliant cut contains 58 facets, and is considered to optimise a diamond's brilliance and fire more than any other cut through its perfect proportions and symmetry. Choosing a round brilliant cut can allow for greater compromise on colour, cut and clarity.

The classic design of a diamond eternity ring is of many small diamonds set side by side in a round band. This continuous circle of diamonds represents eternal love and commitment, and is also a popular style for wedding rings. Just covering half the ring with diamonds is becoming a popular alternative, due to its lower price for the same image when the ring is worn with the diamond side facing up.

Right hand diamond rings are usually made for women who wish to wear a diamond ring, but are either unmarried or choose to keep their marriage status private. Just like diamond engagement rings, they come in many sizes and styles.

Depending on your nationality and beliefs, the 'diamond wedding anniversary' can appear as early as your 10^th year of marriage or as late as your 60^th ! However, diamond anniversary rings are commonly purchased at all stages of marriage and are a traditional and romantic way to commemorate such occasions. These can be worn on any finger and are most commonly set with either a small line or ring of diamonds.