GRADING REPORT PYD143
- Identification: Natural-Colored Untreated Black Diamond
- Carat: 1.43
- Shape: Octagonal Pyramid
- Measures: 5.54x5.44x4.13 (millimeter)
- Color Grade: Fancy Black
- Tone: Dark 100
- Color Zoning: None
- Clarity: Opaque / Lightly Included (see comment)
- Cutting Grade: Good+ ('+' for uniqueness)
> Brilliancy: n.a.
> Depth: n.a.
- Origin: Angola
- Treatment: None
Certificate No: AIG D89691349BE
Overall Grade: Good
Comment: A strangely unique material indeed: Black diamond, naturally-black that is. Its color is the result of dense natural graphite clouds; as opposed to industrial-quality diamonds that have been burned black by radiation and heat, the usual suspects. Like most other colors in gemstones, be it orange, green or yellow, diamond gets its hue from specific impurities. The same is true for sapphire, which are white in their purest form and colored when impure. The important difference is that in diamonds the pure, white variety is the most common occurrence, while in sapphires chemical purity is the exception from the rule, hence most sapphires are colored in some hue and pure whites are rare. In diamonds it is the other way around, almost pure carbon is the standard and colors are rare (the color red is an exception from the exception in diamonds, but a complicated story, google it, borderline science). Depending on the type of impurity, a diamond turns mostly likely yellow, rarely blue, at times orange, or black, and brown, or green. The so-called 'Fancy Black'* variety has gained attention over the last years. Not as plentiful as yellow but not as rare as blue or red, it has been used by some celebrity designers and their customers. The one-only pyramid shape of this 1.43 carat has great potential as a center-stone for a unique ring. Imagine, for example, the pyramid surrounded by a halo of sparkling colorful sidestones, set in extra lustrous 22k yellow gold! Ask us for a project under $10k in total, and propose with a highly individual e-ring while staying within the classic diamond rules (perhaps a better sell for the ultra-conservative in-laws?). See the 36xfold close-up on the tip of the pyramid, a set of small triangles reflecting light similar to the blinking of a 'normal' diamond, just different. The base of the gem is more included than the top, but it will stay hidden in a setting. Inclusions on the upper part are visible only under the lens, though the camera picks them up more easily on such dark and dense material. The accompanying AIG report attests to its natural untreated color for future generations, as will our own grading report. The 1000sqm of rainforest each of our gems preserves at WLT will be kept safe for future generations as well.
*P.S. We use official "color description" of the diamond trade where useful but mark them as "fancy black" even if their linguistic value is shaky.