Triangular Brilliant

Triangular Brilliant cut resembles the shape of a wedge. It is frequently called a Trillion. Triangular Brilliant was invented in 1978 in Amsterdam by Leon Finker. The stone characteristics and the cutter’s preference are the decisive factors which determine the diamond’s body features and whether the corners are rounded or pointed.

Triangular Brilliant and Triangular Modified Brilliant are common names which mean non-branded triangular brilliant cut diamonds. Triangular Brilliants have straight sides while the Triangular Modified Brilliants have sides curved outwards. There exist several other branded terms for similar shapes. They are:

• Trillian is an unpatented three-cornered diamond shape
• Trilliant is also a triangular cut, designed by H Meyer Diamond Co., whose trademark has expired.
• Trielle is a new name for Trilliant whose patent has lapsed. The Trielle's trademark has also lapsed but the name is still used by Trillion Diamond Company
• Trillion is one of the oldest names.
• Asscher's Trilliant is a triangular diamond with curved sides instead of straight ones. This cut is manufactured since the 1970's by the Asscher Diamond Co of Amsterdam. The Asscher`s Trilliant is a forerunner of what is now the Trielle.
• Troidia is a name for another unregistered triangular cut.
• Trillium is another unregistered triangular cut.
• Tri-star is a newly branded triangular cut performed by Karp Impex.

Length, width and depth measurements of the triangular brilliant written on certifications shouldn’t be regarded as the tip to tip measurements. The length to width ratio needs to be approximately 1.12 for the triangle to be equilateral. The length measurement is the longest side of the diamond and the width is the height of it, id est. distance from the length side to the opposite point. A diamond with perfectly equal side measurements is a topflight one. As a rule, the non-branded Triangular Brilliant Diamonds may have some slightly variation in measurement. The gemstone begins to lose brilliance at approximately 29 percent depth and less.

Fluorescence is a very important issue when matching pairs are desired. If the diamonds is considered to display fluoro, you should look for matching degrees of fluorescence in pairs. If the levels of fluorescence are not evenly matched, even diamonds that are theoretically matched because their color grades are the same, will turn out as obvious mismatches for color. The degree of apparent mismatch depends on the light factor and the level of fluorescence.

In most cases the finished diamond contains 44 facets.

When bought, a diamond should be thoroughly examined for the so-called window effect (sea-through areas on the table due to which brilliancy is strongly reduced). It should be understood that good polish and symmetry are also not less important.

The Triangular Brilliant is frequently sold as matched side stones for rings. Next in popularity in market are diamond stud earrings, solitaire pendant necklaces and rings.