Brilliant Cut Diamond Facets

The name unmodified round brilliant was applied to a symmetrical round cut with a regular array of 58 facets cut to modern standards. Due to this facet arrangement brilliant cut stones have more sparkle compared to step and mixed cuts. A brilliant is a diamond or other gemstone cut in a particular form with numerous facets so as to have exceptional brilliance.

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Brilliant cut step cut and mixed cut.

Brilliant cut diamond facets.

This graphic illustrates the measured and visually assessed proportions that affect a round brilliant diamond s cut grade. To determine the cut grade of the standard round brilliant diamond the shape that dominates the majority of diamond jewelry gia calculates the proportions of those facets that influence the diamond s face up appearance. In the standard round brilliant there are 57 or 58 facets. Rarely is it less than 50.

Very small 0 02 carats 4 mg diamonds known as melée are usually given simplified cuts i e with fewer facets this is because a full cut brilliant of such small size would appear milky to the human eye owing to its inability to resolve the stone s dispersive fire conversely very large diamonds are usually given fancy cuts with many. In a brilliant cut diamond facets are arranged in such a manner that they appear radiating outward. Each part of a diamond makes its own contribution to the diamond s appearance. 11x9mm 18k white gold oval morganite diamond halo split shank ring 11x9 er010010 regular price 2 100.

A brilliant cut stone is round in plan view and has 58 facets 33 of which are above the girdle the widest part of the stone and 25 of which are below. Brilliant cut method of faceting a diamond to take best advantage of the optical properties of the stone and produce a finished gem with the maximum fire and brilliancy. And of all the diamond 4cs it is the most complex and technically difficult to analyze. A specific set of terms is used to describe parts of a polished diamond.

The shape resembles that of a cone and provides maximized light return through the top of the diamond. Well according to gia guidelines diamonds cuts are classified under 3 basic categories i e. The size of a diamond may also be a factor. Even with modern techniques the cutting and polishing of a diamond crystal always results in a dramatic loss of weight.

The system was the culmination of years of research that included the results of preference testing among a wide variety of groups including trade professionals and consumers. It is the most popular style of faceting for diamonds.