The most succinct definition of the word 'trilogy' is a 'group of three'. Initially the ‘three’ pertained to three related literary works, either books or plays, but latterly the word trilogy has been combined with the word ‘ring’ in the jewellery world to represent a specific style of ring.

The trilogy ring is a three stone ring consisting of purely diamonds, or two diamonds and a feature gemstone.

Generally speaking, the central stone of a trilogy ring may be slightly larger, or set slightly higher than the supporting stones, to signify the importance of the present, reaffirming the significance of "we are in this moment together”.

The trilogy ring or three stone diamond ring design is usually given as an engagement ring or to signify an important event. The most fitting occasion upon which to purchase a trilogy ring, therefore, is one's engagement. Proposing with three diamonds certainly packs more punch than a single diamond. Moreover, using trilogy engagement rings means that you can include your loved one's favourite colour or favourite gemstone as the central stone, with diamonds on either side of it.

The symbolism behind the trilogy ring appeals to today’s generation, offering the declaration (and confirmation) of "you are my past, my present and my future”, super ceding the simpler sentiment of "I love you” offered at the turn of the century.

Although diamonds are the ultimate symbol of love and durability of promises made, the centre stone of a trilogy ring may be a particular gemstone employed to convey a further feeling or emotion: emerald for faithfulness, sapphire for truth and peace, rubies for passion.

When given in a mature relationship, it is said that the centre stone defines commitment, and the supporting stones, trust and respect.

Christian couples may consider an alternative meaning with the centre stone representing God as the hub and author of the relationship and the two side stones the couple joined through their faith in God.

Trilogy rings have been a presence in the jewellery world for some time now, but only recently have they been increasingly popular for engagement rings. Yes, the three stone engagement ring is indeed a popular choice. There’s something understandably appealing about having the spread of diamonds, rather than the more traditional single stone.