
13.11.21
Fancy Colored Diamonds To Avoid
By Stephanie Dore
Just when you thought you knew everything there was to know about buying the dream diamond (the 4Cs, obvi), someone goes and mentions color. And yes, that someone is probably mentioning it because theyâre just dying to have a pretty little pink diamond on their finger. Or yellow. Or blue. But wait, whatâs this all about? Not to worry, darlings, weâve got your back. Because when it comes to buying fancy colored diamonds, there are definitely some things to watch out for. Letâs discuss.
The Bell Curve
So, starting from the top. Diamond color is graded on a scale from D (colorless) to Z (definitely more color), though most retailers only sell in the D to, say…J-ish range. This is because colorless diamonds won the popular vote and, well, they sell. Now, anything beyond, yes beyond, that Z is what we call a âfancy colorâ. Meaning itâs got so much color that itâs now subject to a completely different grading system. We find it helps to think of it like an upside down bell curve. Colorless at the top, then it dips into murky territory, then back up to super saturation. And yes, the price tags follow suit.

Natty Ice
So what exactly causes that color? A little thing we like to call trace minerals. For instance, nitrogen molecules present during a diamondâs growth can make it yellow. Or boron can make a diamond blue. Color can also be the result of structural defects to the diamondâs crystal lattice. In fact, this was the case with most of the stones from Australiaâs (now defunct) Argyle Diamond Mine, a significant source of pink, red, champagne, cognac and rare blue diamonds. Now, hot tip – diamond color can also be the result of treatment. That is, heat or radiation applied after the fact to intensify diamond color. Itâs pretty important to know if the stone youâre interested in has been treated or not, as treated color can potentially be impermanent and weaken the stone over time, making it more vulnerable to chips and other damage.
How Will I Know
No, we donât expect you to be able to determine whether a diamondâs color is natural or not by your lonesome, darling. Thatâs what grading labs and certificates are for! Yes, just like a colorless diamond, you should really only purchase a fancy colored diamond that has been certified by a trusted lab. That certificate will tell you whether the stone has been treated or not. It will also give you a full readout on the quality and distribution of the diamondâs color. Bonus.


Color Me Complicated
Speaking of color, itâs not just âpinkâ or âblueâ. See, color grading for fancy colored diamonds has a whole breakdown. Ready to nerd out? We sure are.
Fancy color is broken down into three components:
- Hue reflects the basic colors we see. When we talk about âcolorâ weâre really referring to hue.
- Tone refers to a gemâs relative lightness or darkness â think about this from white to black.
- Saturation refers to the hueâs intensity, is the color light or intense?
How do all of these come together? In a three-way axis. Hereâs what it looks like. Crazy right? But color, like we said, is kind of complicated.
Simple Minds
Letâs break it down a bit further. First things first, there are the basic hues: red, orange, yellow, green, blue, violet, purple, pink, brown…you get the idea. Itâs pretty rare that youâll find a stone that lists a single hue with no modifiers. If you do, you might see the price go way up. Whatâs a modifier? Stones can have one, two, even three! Itâs how we express the wide variety of in-between hues. Like, a greenish blue is a diamond with more blue than green. Or the reverse, a bluish green is a diamond with more green than blue. Make sense? If you see a stone color listed with a hyphen, such as yellow-green, that falls right in the middle. Youâll also see additional color modifiers like âslightlyâ or âstronglyâ and this refers to the level of color saturation. Warm hues, such as red, orange, and yellow, usually show up as shades of brown as their saturation decreases, whereas cool hues, like blue and violet, become progressively more gray. Overall, there are 12 different colors, over 90 secondary hues, 9 intensity levels, and over 230 color combinations. We know. Itâs a lot. If you want to learn a bit more about how this all shakes out, check out these awesome color reference charts from GIA. Pretty!

Speaking of Pretty, Letâs Talk Pennies
Just like with a straight up single-hued stone, the more intense the body color, the higher the cost. Because when it comes to fancy colored diamonds, pricing is all about rarity. In fact, even stones under 1 carat that have rare, super saturated color, are considered major investments. Weâre talking auction houses and museums here, folks. So donât be surprised if, one, you donât find any available or, two, it costs a bajillion dollars. How to save some cash? Shop softer, in-between shades, unique shapes, and off-carat sizes for the best deals. And if youâre open to lab created stones, you can save even more!
Cut it Out
We know weâre always hounding you about how cut is the most important of the 4Cs because it determines a stoneâs sparkle and brilliance and beauty, etc. But for fancy color diamonds, color is really all that matters. In fact, fancy colored diamonds are cut not for brilliance at all, but to preserve and intensify their body color. Yep, the cut of a diamond can totally change how its color appears. So donât be surprised if you find âgoodâ cut colored diamonds that are totally stunning. And donât rule them out of your search! This applies to shapes too. The most common shapes for fancy colored diamonds are cushions and radiants because the cut of these shapes helps intensify color, whereas round, princess and emerald â some of the most popular cuts for colorless stones â are hardly anywhere to be seen!

Make New Friends
Now that weâve scrambled your brains (donât worry, itâs a lesson we had to learn too!) by throwing color in the mix, donât worry. Weâre not going to just wish you luck finding the perfect diamond. Thatâs what our Diamond Concierge is for! Truly, when it comes to fancy colored diamonds, having a helping hand to hunt down the perfect shades, shapes, and sizes really does come in handy. Want to see some in person (or via video chat, after all, this is 2021)? Reach out to us at hello@frankdarling.com with some details about your deepest fancy color diamond ring desires and weâll get you sorted.
Or take our style quiz to explore color and style options and get a free sketch of your dream ring, where you can select a fancy color center or side stones. Sketches are always free, and thereâs no limit!