BMJ Blog

Diamonds 101

Posted on December 08, 2011 by Barbara Polinsky | 1 Comment

Every diamond is as unique as the individual that wears it and weighing the pros and cons of a particular stone can be confusing. Here's a quick overview of the 4C's

CUT

The most identifiable of the four C's and the only grade that humans actually play a role in influencing. The cut of a diamond does not only refer to the shape but the facet design, finish and proportions of the diamond. A diamond that is well cut will radiate light and brilliance because the facet angles are optimum. Vintage diamonds can be an exception to this rule.

COLOR

The color of a diamond refers to the hue and saturation of the intensity or lack of color in a diamond. Color is graded in shades of yellow, brown and gray and comes from different levels of nitrogen below the surface of the earth; little to no nitrogen produces colorless diamonds. High levels of nitrogen produce yellow and brown hues. Color is graded in letter classifications from colorless (D-E-F), near colorless (G-H-I-J) and degrees of yellow and brown (K to Z). Some of the most rare colors occur in fancy, vivid shades of yellow, pink and even blue.

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Posted in 4c's, carat, certification, certs, clarity, color, cut, diamonds, gemological institute of america, gia

What is a rose cut diamond?

Posted on July 16, 2009 by Barbara Polinsky | 0 Comments

Rose cut stones were popular in Europe in the 1500's and are enjoying renewed popularity today. The most notable feature of this cut is the stone's flat, or near flat bottom. Picture a low gumdrop with facets cut into the top. The facets start from the center of the stone and spread outward, usually in multiples of 6 appearing like a rose opening up. Although antique rose cut diamonds and other stones can still be found, the majority of rose cut stones in the market today are newly mined. Rose Cuts can be found in diamonds, sapphires and a variety of other gemstones. Irregular shapes are very common, as well as round, oval and pear. The majority are flat on the bottom and faceted on top however some are faceted on top and bottom The depth varies from stone to stone.The large and elegant shimmery surface and thin profile offer lots of great design possibilities but even better, the appearance of a larger stone since they occupy more surface area than a traditionally cut stone of the same weight.

rose cut diamond styles