Brilliant Cut Diamonds For Beautiful Rings
Brilliant cut diamonds
are one of the three categories of diamond cuts classified by the Gemological
Institute of America (GIA) This classification is made based on the facet styles and arrangements
in a diamond. The other two categories are step cuts and mixed cuts.
Brilliant cut diamonds are characterized by presence of many facets
with shapes of triangles and kites. Spreading outwards towards the outer
rim like a cone, the facets are aligned in a way that allows maximized
reflection of light from the top of the diamond adding brilliance to
it.
The following brilliant cut diamond rings for sale are currently listed on eBay.
Brilliant cut diamonds are divided into further popular categories
like round brilliant cut and princess cut. Round brilliant cut diamond
is the most widely chosen with number of facets as many as fifty eight
(fifty seven excluding the culet) while such numbers in classic brilliant
cut diamonds are fewer. It is a preferred cut with diamond crystals
that are octahedral. Princess cut is preferred for diamond crystals
of odd shapes and gives the gemstone a square appearance.
The half above the girdle
of the diamond which is the top half is called the crown. The half below
the girdle is the lower half and is called the pavilion. Out of the
58 facets of a round brilliant cut diamond, the crown and the pavilion
have 33 and 25 facets on them. However the girdle facets on the modern
day round brilliant cut diamonds are not reckoned with the total number
of facets. While 58 is the standardized number of facets on a round
brilliant cut diamond, there is no one standard for the proportions
in which the facets are arranged like the depth of the pavilion or the
angle and height of the crown.
Facets on brilliant cut
diamonds play the most significant role in controlling the path of travel
of the light which in turn determines the splendour with which the diamond
would sparkle. Within the three-dimensional diamond, light gets reflected
repeatedly as it enters and comes out from various angles and directions
regardless of the symmetry of brilliant cut diamonds. Also in brilliant
cut diamonds, the intensity of brilliance depends on the relations between
the crown angle and the pavilion angle. Usually to give the gemstone
a better look, the shallowness of the crown angle is complemented with
making the pavilion angle steep as also the reverse. The girdle thickness
and table ratio are other aspects for consideration.