Diamonds.com
offers the finest diamond jewelry, engagement and
wedding rings. It offers a
wide selection and styles in its product catalog. What makes this site unique
is that you can customize your own jewelry for a design with a personal touch. …
so anything anything creative is possible. It’s possible to purchase online
securely with diamond.com. How to
buy a diamond…
Diamonds
are graded using a system that judges the stone on its colour, clarity,
cut and
carat weight - commonly known as the "Four C''s." Diamonds of
uncommonly high quality and size are often sold as "certified
diamonds" and come with a certificate that proves the stone''s value. Even
non-certified diamonds should be evaluated using the four C''s to help determine
cost. Carat is the term used to describe the weight of any gemstone, including
diamonds. Although the definition of a carat has changed over time, since 1913
the international standard has been 200 milligrams, or 1/5 of a gram. Often,
jewellers describe carats in 1/4 increments. In jewellery pieces with more than
one diamond, the carats may be described in terms of total carat weight (TW).
This is the combined total weight of all the stones in the piece. In the strictest definition of the term,
"cut" is not the same thing as "shape" - for example, the
most popular cut for a diamond is the round brilliant cut, but there are also
round Swiss cuts, round Old European cuts, and round 144-facet cuts. For the
most part, however, the terms are used interchangeably, including on this site.
The 58-facet round brilliant cut is the
most popular because of its fire and brilliance. This is achieved by cutting
the stone to very exacting mathematically-determined proportions so as much
light as possible is reflected out the top of the diamond. The cut of a diamond
refers not only to the shape of the diamond and number of facets, but also to
the quality of the cut. A diamond with uneven or poorly proportioned facets
won''t be given the same grade of cut as an ideally proportioned and masterfully
cut stone. This
information will be found on the certificate of a certified
diamond. Although most diamonds on the market today are round brilliants, there
are many different shapes available. Clarity is very common for diamonds to be
formed with slight imperfections. These are known as "inclusions" and
can come in many forms, including tiny
white points, dark dots, or feathery
cracks. The fewer inclusions, the more the stone is worth. A diamond''s clarity
ranking is determined by the number, size, type and placement of the inclusions.
Some of the most sought after diamonds of today are the fancy colours such as
Pink, Blue,
Yellow, Green, Champagne & Fancy Cognac to name but a few.
These colours come in varying depth of colour ranging from intense to very very
light. As a rule the more intense the colour the higher the value. Most white
diamonds appear colourless but actually have slight tones of yellow or brown.
The closer a white diamond comes to colourless, the more valuable it is. White
diamonds are graded on a colour scale ranging from D (colourless) to Z (heavily
tinted).
Published: February 21, 2008
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