LDH

Diamond Shapes & Size

Diamond Carat Size Chart

In addition to cut and shape, diamonds are also evaluated based on size (carat weight) and clarity (the presence of internal or external imperfections). These characteristics, along with cut and shape, collectively influence the overall beauty and value of a diamond, making it essential for consumers to carefully consider their preferences and priorities when selecting the perfect diamond for their jewelry.

Marquise MM SizeMarquise Carat Weight
6x3 mm.0.25 ct.
8x4 mm.0.50 ct.
9x4.5 mm.0.75 ct.
10x5 mm.1.00 ct.
11x5.5 mm.1.25 ct.
12x6 mm.1.50 ct.
12.5x6.25 mm.1.75 ct.
13x6.5 mm.2.00 ct.
14x7 mm.2.50 ct.
15x7 mm.3.00 ct.
15x8 mm.3.50 ct.
16.5x8.25 mm.4.00 ct.
16.75x8.5 mm.4.50 ct.
17x8.5 mm.5.00 ct.

Round

Princess

Radiant

Asscher

Cushion

Oval

Emerald

Pear

Marquise

Heart

Baguette

Triangle

Diamond Cut:

Diamond cut refers to the way a diamond is fashioned from its raw, rough state into a polished gemstone. It encompasses several elements:

  • Proportions: The proportions of a diamond, including the angles and dimensions of its facets, are essential for maximizing its brilliance and sparkle. A well-cut diamond allows light to enter and reflect back through the top, creating the dazzling play of light that diamonds are known for.

  • Symmetry: A symmetrical diamond reflects light more evenly, resulting in enhanced sparkle. Imperfections in symmetry can lead to a less vibrant appearance.

  • Facets: The number and arrangement of facets on a diamond’s surface affect how it interacts with light. Facets are like tiny mirrors that bounce light within the stone, producing the scintillation and fire that are characteristic of diamonds.

  • Reflective Qualities: The quality of a diamond’s polish on its facets determines how efficiently light can pass through and be refracted. A well-polished diamond will exhibit maximum brilliance.

Diamond Shape:

Diamond shape, on the other hand, pertains to the external outline or silhouette of the diamond when viewed from above. There are several popular diamond shapes, each with its own unique charm:

  • Round Brilliant Cut: The round shape is the most classic and popular choice. It boasts 57 or 58 facets, making it exceptionally brilliant and lively.

  • Princess Cut: Known for its sharp, square or rectangular shape, the princess cut is a modern and elegant choice, with pointed corners and plenty of sparkle.

  • Emerald Cut: Featuring rectangular facets and step-cut sides, the emerald cut is renowned for its timeless and sophisticated appearance, emphasizing clarity and the natural beauty of the diamond.

  • Cushion Cut: This square or rectangular shape with rounded corners offers a vintage and romantic look, known for its soft, pillow-like appearance.

  • Asscher Cut: Similar to the emerald cut but square in shape, the asscher cut is celebrated for its Art Deco charm and elegant symmetry.

  • Pear Cut: Resembling a teardrop, the pear cut combines the round brilliance of the top with a tapering, pointed end, offering a unique and graceful appearance.

  • Heart Cut: Symbolic of love, the heart-shaped diamond is distinctive and romantic, making it a popular choice for sentimental jewelry.

  • Oval Cut: The oval shape offers the brilliance of the round cut with an elongated, flattering appearance on the finger.

  • Marquise Cut: Known for its boat-like shape with pointed ends, the marquise cut creates an illusion of greater size and elegance.

  • Radiant Cut: Combining the elegance of the emerald cut with the brilliance of the round cut, the radiant cut is a square or rectangular shape with cropped corners, offering dazzling sparkle

Marquise MM SizeMarquise Carat Weight
3x1.5 mm.0.025 ct.
3.5x1.75 mm.0.065 ct.
3.5x2 mm.0.07 ct.
4x2 mm.0.10 ct.
3.75x1.75 mm.0.11 ct.
4.25x2.25 mm.0.12 ct.
5x2.5 mm.0.14 ct.
5.5x2.75 mm.0.16 ct.
5.5x3 mm.0.18 ct.
5x3 mm.0.20 ct.
6.5x3 mm.0.23 ct.
6x3 mm.0.25 ct.
7x3 mm.0.30 ct.
7.5x3.5 mm.0.33 ct.
7x4 mm.0.34 ct.
8x4 mm.0.50 ct.
8.75x4.25 mm.0.70 ct.
9x4.5 mm.0.75 ct.
9.5x4.7 mm.0.85 ct.
Marquise MM SizeMarquise Carat Weight
10x5 mm.1.00 ct.
11x5.5 mm.1.25 ct.
11.5x6 mm.1.33 ct.
12x6 mm.1.50 ct.
12.5x6.25 mm.1.75 ct.
13x6.5 mm.2.00 ct.
14x7 mm.2.50 ct.
15x7 mm.3.00 ct.
15x7.5 mm.3.25 ct.
15x8 mm.3.50 ct.
16x8 mm.3.86 ct.
16.5x8.25 mm.4.00 ct.
16.75x8.5 mm.4.50 ct.
17x8.5 mm.5.00 ct.
17.5x10 mm.5.50 ct.
20x8 mm.7.08 ct.
20x10 mm.7.94 ct.
20x11 mm.9.50 ct.

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To All our valued jewelers and partners and diamond wholesalers, embracing lab-grown diamonds today is an investment in tomorrow’s success. Starting earlier means staying ahead of the curve, offering customers a sustainable and ethical choice, and positioning your business for a brighter, more profitable future