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Royal Coster
Diamonds Size
MM / INCH (Circumference)
48 / 1.89 48 4½ 8
49 / 1.93 49 9
50 / 1.97 50 K 10
51 / 2.01 51 L 11
52 / 2.05 52 6 12
53 / 2.09 53 13
54 / 2.13 54 14
55 / 2.17 55 O 15
56 / 2.20 56 P 16
57 / 2.24 57 8 17
58 / 2.28 58 18
59 / 2.31 59 R 19
60 / 2.36 60 9 S 20

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Factors that determine the price of a diamond and diamond jewelry

Diamonds are known for their beauty, elegance, and timeless appeal. The price of a diamond and diamond jewelry is influenced by several factors. In this article, we will delve deeper into the key aspects that determine the price of diamonds and how these factors affect the cost of diamond jewelry.

1. The 4C's: Carat, Cut, Color, and Clarity

The 4C's, consisting of Carat (weight), Cut (shape and proportions), Color (hue), and Clarity (inclusions and blemishes), are internationally recognized criteria for assessing the quality and value of a diamond.

  • Carat: This refers to the weight of a diamond and is measured in carats. Generally, the larger the diamond, the higher the price. However, large diamonds are rarer, making them more valuable.
  • Cut: The cut of a diamond influences its brilliance and overall appearance. An excellently cut diamond will have more sparkle and appear larger than a poorly cut diamond of the same weight. The cutting process requires craftsmanship and precision, resulting in a higher price for well-cut diamonds.
  • Color: Diamonds come in various colors, ranging from colorless to light yellow. Colorless diamonds, such as those with D or E grades, are considered extremely rare and more valuable than diamonds with a yellowish tint. Colored diamonds, like rare pink or blue diamonds, command a higher price due to their uniqueness.
  • Clarity: The clarity of a diamond refers to the presence of inclusions or blemishes. Diamonds with higher clarity, where the inclusions are less visible, generally have a higher price. Diamonds with higher clarity grades are rarer and, therefore, more highly valued.

2. Diamond Shape and Jewelry Style

In addition to the 4C's, the shape of the diamond and the style of the jewelry also play a role in determining the price. Popular diamond shapes, such as brilliant and princess cut, often have a higher price due to greater demand. Rarer shapes, such as marquise, oval, or heart-shaped diamonds, may also command a higher price due to their unique appeal.

Furthermore, the style of the jewelry impacts the price. Is it a simple solitaire ring or an intricate diamond necklace with multiple stones? Jewelry with intricate designs and multiple diamonds requires more craftsmanship and materials, which increases their price.

3. Quality of the Metal

Another aspect that influences the price of diamond jewelry is the type and quality of the metal in which the diamonds are set. Popular precious metals like platinum and gold each have their own price levels determined by factors such as purity, weight, and market demand. The use of high-quality metals raises the price of the jewelry.

4. Grading Reports

Grading reports, also known as certificates, are official documents that record the quality and specifications of a diamond. These reports are issued by reputable gemological laboratories and serve as an objective assessment of the diamond. Diamonds with detailed grading reports from renowned labs may command a higher price because they provide confidence and transparency to buyers.


The price of a diamond and diamond jewelry is determined by a combination of factors, including the 4C's (Carat, Cut, Color, and Clarity), the shape of the diamond, the style of the jewelry, the quality of the metal used, and the presence of grading reports. It is important to understand that each diamond is unique, and the price can vary significantly based on these factors. When assessing the price of a diamond, it is advisable to work with a reputable and experienced jeweler who can provide valuable advice and quality assurances.

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