The curved cut used for single, centre stones, and the uncurved cut used as side stones. Aspect ratio: The ideal ratio of length to width in a trilliant cut diamond should be the same length as the stone is wide. (1:1 aspect ratio)

Trilliant Cut Diamond (Trillion) - the Cutting Process
Diamond Facets are the smooth surface areas of a diamond which are cut and polished to control the brilliance and the durability of a diamond. A skilful diamond cutter brings out all the brilliance and sparkle of a diamond by choosing the most appropriate cut, such as the Trilliant Diamond cut.

Symbolism & Meaning of Diamonds
The traditional properties closely associated with diamonds  are action, passion, and energy. Jewelry containing diamonds are believed to enhance relationships, increasing inner strength and provide the wearer with balance, clarity and abundance. Wearing jewelry containing a diamond will focus the energies of the precious gemstone through the gem.

Diamonds are Forever...
An Impartial Guide to Diamonds

Trilliant Cut Diamond Engagement Rings (Trillion)
The tradition of wearing engagement rings, including those with an Trilliant cut diamond, symbolizes the promise of a future together which is sealed with the giving and accepting of a ring. The tradition of giving a diamond engagement ring dates back to the 13th century. Mary of Burgundy is the first known recipient of a diamond engagement ring, in 1477. Betrothal Betrothal rings were initially given as a pledge to marry. All wedding and engagement rings are worn on the third finger of the left hand because the vein in this finger, called the "vena amoris", was once believed to run directly to the heart which is closely associated with love. The circular shape of rings symbolizes unending love.

Trilliant Cut Diamond Solitaire (Trillion)
The most popular style engagement ring is a diamond solitaire, the cuts include the Trilliant cut diamond solitaire. The solitaire design was introduced by Tiffany about 100 years ago. The Tiffany solitaire setting enhanced the brilliance and lustre of the diamond by introducing the first ‘open’ mount, which allowed light to travel freely through the precious stone differing from all previous settings which had restrictive closed backs. The Trilliant cut diamond solitaire is a beautiful cut for this type of jewelry.

Trilliant Cut Diamond (Trillion)
What constitutes good cuts? Good Trilliant Cut Diamonds are effected by several different elements which have a large impact on a diamond's brilliance. These include the Width and Depth of the stone, the Symmetry and the alignment of a diamond's facets and the polish. Diamond Clarity is a measure of a diamond's blemishes and inclusions which also effect the brilliance of diamonds and their sparkle because they interfere with the passage of light travelling through the precious stone. The skill of the jeweller will ensure that Trilliant cut diamonds have a suitable cut to give the most beautiful results in respect of their lustre, transparency, refraction and dispersion of light.

Definition: A Trilliant (aka Trillion, Trielle) diamond is cut in a triangle shape, that is three sided. These cuts have a total of 31 facets. There are two different variations of these cuts. The curved cut used for single, centre stones, and the uncurved cut used as side stones. Aspect ratio: The ideal ratio of length to width in a trilliant cut diamond should be the same length as the stone is wide. (1:1 aspect ratio)

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Trilliant Cut Diamonds - Trillion