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How many facets?
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The standard number of facets of a Marquise Cut gemstone is 58, an adaptation
of the standard brilliant (33 crown, 25 pavilion). However, the pavilion can be
cut with 4, 6 or 8 pavilion main facets.
What are the origins of the Marquise Cut?
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The Marquise Cut was inspired by the fetching smile of the Marquise de
Pompadour and commissioned by the Sun King, France's Louis XIV, who wanted a
Diamond to match the smile.
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The Marquise was one of the most popular shapes in the 1960's to 1980's and
like the Emerald is a traditional shape. This is probably the fourth most
popular shape behind the Round, Princess and Oval.
What does it look like?
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The Marquise Cut is also known as the "Navette" shape and looks like a long
oval that has been stretched out to a point at each end (e.g. rugby ball viewed
straight down from the top).
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The optimal ratio of length to width is 2:1, although a length-to-width ratio
between 1.75 and 2.25:1 is perfectly acceptable.
What works best for Marquise Cut?
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It is important that the Marquise Cut gem not be too shallow or light will pass
through the back of the diamond and its brilliance and colour will be
diminished.
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Marquise provides good brilliance and colour.
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It is gorgeous when used as a solitaire or when enhanced by smaller gems.
The shape of a marquise diamond can maximize carat weight, giving you a much
larger-looking diamond. This fancy-shaped brilliant-cut diamond looks beautiful
set with round or pear-shaped side stones, and the length of the marquise makes
fingers appear long and slender. When choosing a colour grade, consider that
while the price of a lower colour marquise diamond is exceptional, colour may
be slightly visible in its corners.
The Quality Diamonds Basic Grading Chart has been used to
determine the quality of individual stones we sell on this website, using Table
and Depth percentages to give a general guide to a stones quality. We have used
this simplified method to assist customers who prefer not to delve into very
specific details, after all, if you are not completely satisfied with your
purchase, you have the right to a full refund, or to exchange your diamond for
30 days.
Quality Diamonds Basic Grading Chart
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Table %
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55.0%-60.0%
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53.0%-61.5%
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52.0%-62.0%
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51.0%-64.0%
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51.0%-67.0%
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49.0%-70.0%
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48.0%-72.0%
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<48.0%
>72.0%
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Total Depth %
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59.0%-63.0%
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58.0%-65.4%
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56.0%-68.5%
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46.0%-71.0%
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43.0%-73.0%
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<43.0%
>73.0%
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The Full Grading Chart is the recognised chart for grading
diamonds right down to the finest detail. This chart is intended for the true
perfectionist and as such, you may want to call us on 0800 612 1017 to talk to
a diamond expert to ensure you are getting exactly what you require.
Full Grading Chart
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Table %
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55.0%-60.0%
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53.0%-61.5%
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52.0%-62.0%
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51.0%-64.0%
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51.0%-67.0%
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49.0%-70.0%
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48.0%-72.0%
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<48.0%
>72.0%
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Crown Height %
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12.0%-15.0%
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11.5%-16.0%
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11.0%-16.6%
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10.1%-17.5%
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9.0%-18.0%
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8.3%-18.9%
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7.8%-19.5%
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<7.8%
>19.5%
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Girdle Thickness
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Very thin to Slightly thick
Or
Thin to Thick
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Very thin to Thick
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Very thin to Very thick
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Extremely thin to Extremely thick
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Total Depth %
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59.0%-63.0%
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58.0%-65.4%
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56.0%-68.5%
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46.0%-71.0%
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43.0%-73.0%
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<43.0%
>73.0%
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Polish / Symmetry
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Good to Excellent
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Fair to Good
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Poor to Fair
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Length: Width Ratios
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1.75-2.25
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