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The DeYoung family

By 19.06 September 20th, 2018 No Comments

The DeYoung family, and its head, Simon DeYoung, began their diamond history in 1835 when they emigrated from Holland to the United States, accompanied by four of Simon’s colleagues, their diamond cutting business being one of the first in the US. Henry D. Morse and Simon’s son, Jacob, joined this lucrative business, followed in the late 1920s by Jacob’s son, Sydney. This was the team who expanded the business by including other precious stones in their stock such as coloured gem stones, pearls and also antique pieces.    

It was Sydney DeYoung who had an eye for recognising unique stones and this asset enabled the company to add unique stones to their collection, amongst which were jewels from royalty. He was a generous man who donated rare gems to the National Gem Collection at the Smithsonian Institute in Washington D.C.

One of the most unique gems in the National Gem Collection is the DeYoung Pink Diamond, a grade Sl-1 pear-shaped stone, weighing 2.86 carats, which has a natural fancy intense purplish-pink colour. It was found in Tanzania at the Williamson Mine. Another extraordinary stone in the collection is the DeYoung Red weighing 5.03 carats.

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These two diamonds, pink on the left, red on the right, made the DeYoung family’s American Dream a reality.

In the mid-1900s, Joseph H. Samuel Jr., Sydney DeYoung’s nephew, engaged in both national and international expansions to the business, continuing the family’s American Dream.

 

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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