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Thirteen Amazing Facts about Diamonds

By 23.01 September 20th, 2018 No Comments

Diamonds are the birthstone for the month of April, meaning that April-born ladies have an extra reason to ask for gifts of sparkling diamonds!

The word diamond derives from the Greek word ‘adamas’ which means invincible or indestructible.

A law in 13th century France decreed that only the King could wear diamonds.

Diamonds worn in ancient times were believed to promote strength, invincibility and courage.

The Earth is estimated to be 4.5 billion years old: the oldest diamonds are believed to have been crystallised around 3.3 billion years ago.

Diamonds form about 100 miles below ground and are carried to the Earth’s surface by deep volcanic eruptions.

Diamonds form the hardest natural substance found on Earth and can only be scratched by another diamond.

To produce a single one-carat diamond, 250 tons of earth will be mined.

The largest diamond ever discovered was the Cullinan diamond which weighed an amazing 3106 carats, or 1.33 pounds. Discovered in 1905 in South Africa, the mine’s owner and the South African leaders gave the diamond to King Edward. The Cullinan was eventually cut into nine large diamonds and 100 smaller ones: the three largest of these are on display in the Tower of London as part of the British Crown Jewels.

The top three diamond producing countries in the world are: Botswana (24 million carats), Russia (17.8 million carats) and Canada (10.9 million carats).

Diamonds have a very high melting point of 3820⁰K (3547⁰C/ 6420⁰F) and a boiling point of 5100⁰K (4827⁰C/ 8720⁰F).

80% of diamonds are used for industrial purposes.

The U.S. is the world’s largest diamond market. Although the U.S. accounts for less than 1% of total global gemstone production, America buys more than half of the world’s total gem quality diamonds.

Clarity

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Color

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Carat

The international unit of weight, used for measuring diamonds and gemstones. 1 carat is equal to 200 milligrams, or 0.2 grams.

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Clarity

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Color

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Cut

Nothing is more impactful on a precious stone’s brilliance than its cut. The cut refers to the angles and proportions of a diamond. Known in the industry as ‘fire’, referring to the coloured light reflected, and ‘brilliance’ for the uncoloured light. The cut of a diamond – its form and finish, its depth and width, the uniformity of the facets – determines its beauty. The skill with which a diamond is cut determines how well it reflects and refracts light. A diamond should be cut proportionally, neither very shallow not very deep, given its dimensions. A diamond’s cut is its most important characteristics and a measure of its apparent beauty.

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Certificate

A diamond certificate or grading report provides an expert opinion on the quality of the diamond and is provided by an independent gemology lab. Trained gemologists with specialized equipment measure the weight and dimensions of the diamond and assess quality characteristics such as cut, color, and clarity. Brilliant Earth diamonds are certified by the world’s leading gem grading labs including GIA, IGI, and GCAL.

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Depth

The height of a diamond, from the culet to the table referred as a Depth of the diamond . Depth % is the height of the diamond as a percentage of the girdle diameter.

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Table

Table referred as the largest facet of a gemstone, located at the top. Table % is the table width as a percentage of the girdle diameter.

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Polish

Polish refers to the smoothness of the exterior of a diamond. Polish is graded from Ideal, Excellent, Very Good, Good, Fair, or Poor. Polish grades of Good or higher have the least effect on the brilliance of the diamond and recommended by us for the finest quality jewelry.

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Symmetry

Symmetry refers to the angles to which the facets are aligned. Basically exactness of the shape of a diamond, and the symmetrical arrangement and even placement of the facets. If facets are misaligned, the diamond may poorly reflect light. Symmetry is graded from Excellent, Very Good, Good, Fair, or Poor. We recommends diamonds with Good or higher symmetry grades.

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Fluorescence

Describes the diamond’s response to ultraviolet light. In diamonds with strong or very strong fluorescence, there may be some interference with the flow of light which causes a milky or oily appearance. Canadian diamonds almost always have none to slight fluorescence.

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Measurements

Diamonds with “fancy” shapes are measured according to their length, width and depth. These diamonds will have a longer axis (the biggest measurement) and a shorter one that represents their width. The depth indicates the measurement of the diamond from the bottom to the top. The relative proportions of a diamond ultimately affect its quality and value.

Round-shaped diamonds are never perfectly round even though they may seem to be that way when you look at them. There is a tiny variation between maximum and minimum diameter, so dimensions are reflected as measurements of maximum diameter, minimum diameter and depth.

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