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Marquise Loose Diamonds | (Page 1 of 80)

A diamond's shape is its outline when viewed from the top and is one of its most important defining characteristics. Known for their timeless elegance, marquise cut diamonds are cut with pointed ends for a dramatic appeal. Compared to other diamond shapes, the elongated contours of marquise cut diamonds create the illusion of a bigger size per carat weight.

Shop the selection of Marquise cut loose diamonds below and narrow your search by choosing additional filters. For assistance, contact a Brilliance diamond and jewelry expert at 866-737-0754.

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There's no denying the timeless elegance of a marquise cut diamond. Reputed to have been specially made for King Louis XIV of France, who wanted a diamond that simulated the smile of Marquise de Pompadour, this elongated stone has gracefully pointed ends for a dramatic appeal. Due to their extended length, marquise cut loose diamonds have more size per carat weight than other shapes and boast a brilliant 58 facets. This cut's flattering effect creates the illusion of long, slender fingers.

To achieve optimal symmetry and light performance in a loose diamond, the stone must be cut to specific depth and table percentages. The depth percentage of a diamond measures the ratio of the stone’s depth to the diamond’s total diameter. The table percentage is the ratio of the width of the diamond’s top facet in relation to the width of the entire stone. For marquise cut diamonds, the depth and table ranges below will yield different qualities of cut.

  • Depth Percentage
    • Ideal: 66% - 56%
    • Excellent: 72% - 54%
    • Very Good: 76% - 52%
    • Good: 78% - 46%
  • Table Percentage
    • Ideal: 64% - 54%
    • Excellent: 66% - 52%
    • Very Good: 68% - 50%
    • Good: 75% - 45%

Every diamond shape has a length-to-width ratio, which determines how a certified diamond will appear when viewed from above. When selecting a marquise shaped diamond, look for a length-to-width ratio between 1.7 and 2.3.

There's no denying the timeless elegance of a marquise cut diamond. Reputed to have been specially made for King Louis XIV of France, who wanted a diamond that simulated the smile of Marquise de Pompadour, this elongated stone has gracefully pointed ends for a dramatic appeal. Due to their extended length, marquise cut loose diamonds have more size per carat weight than other shapes and boast a brilliant 58 facets. This cut's flattering effect creates the illusion of long, slender fingers.

To achieve optimal symmetry and light performance in a loose diamond, the stone must be cut to specific depth and table percentages. The depth percentage of a diamond measures the ratio of the stone’s depth to the diamond’s total diameter. The table percentage is the ratio of the width of the diamond’s top facet in relation to the width of the entire stone. For marquise cut diamonds, the depth and table ranges below will yield different qualities of cut.

  • Depth Percentage
    • Ideal: 66% - 56%
    • Excellent: 72% - 54%
    • Very Good: 76% - 52%
    • Good: 78% - 46%
  • Table Percentage
    • Ideal: 64% - 54%
    • Excellent: 66% - 52%
    • Very Good: 68% - 50%
    • Good: 75% - 45%

Every diamond shape has a length-to-width ratio, which determines how a certified diamond will appear when viewed from above. When selecting a marquise shaped diamond, look for a length-to-width ratio between 1.7 and 2.3.

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