Natural coloured diamond
Natural Yellow Diamonds
From a gentle lemon to a deep golden “canary” yellow. Yellow is the most accessible gateway into natural coloured diamonds — yet at the highest saturation, Fancy Vivid Yellow remains a rarity. Every stone carries an independent GIA certificate and a documented natural colour origin.
Featured natural diamond
0.50 ct · · VS1
Oval
DKK 70,905.00
incl. 21% VAT
From our selection
Selected natural diamonds from our offer
A live selection — each stone is unique and GIA-certified; once sold, it cannot be replaced.
The science
Why diamonds are yellow
Colour in a diamond is neither a coating nor a reflection — it forms inside the crystal, in the atomic structure of the stone. For yellow, one element is responsible: nitrogen.
Nitrogen in the lattice
A pure diamond of only carbon is colourless. Once nitrogen is built into the lattice during growth, the stone starts to absorb short-wavelength blue and violet light. The colour we see is the complement — yellow.
Type Ib — saturated “canary” yellow
In type Ib nitrogen is present as single, isolated atoms. These absorb light especially strongly and produce the most saturated, golden yellow. Type Ib is rather rare in nature — these are the stones often called “canary”.
Type Ia — the “Cape” spectrum
The vast majority of natural yellow diamonds are type Ia (about 74 % of fancy yellows per GIA). Here nitrogen is clustered; the colour comes mainly from the N3 centre. This “Cape” spectrum gives the classic yellow — from soft to pronounced.
GIA intensity scale
Faint → Fancy Vivid
GIA grades coloured diamonds on a different scale than white. For white (D–Z) the goal is as little colour as possible; for coloured the opposite holds — the higher the saturation and purer the hue, the rarer the stone. Fancy Vivid combines the highest saturation with a medium tone and is the most sought-after commercially.
Three axes of colour
Hue, tone and saturation
Hue
The base colour of the stone. GIA distinguishes 27 hues; for yellows we watch whether it is a pure yellow or yellow with a modifier — greenish or orangy. A pure hue is rarer.
Tone
The lightness or darkness of the colour — from pale lemon to deep gold. Tone alone does not “make” the colour, but it co-determines the first impression.
Saturation
The depth and strength of the colour. Saturation is what moves a stone up the scale — from Fancy Light to Fancy Vivid. For yellows it is the main driver of value.
„A yellow diamond is nature concentrated into a single flash of light — a flash that took millions of years to make.“
Arete Diamond gemological view
Honest distinction
Natural × treated × laboratory-grown colour
Swipe to see the full table
| Natural colour | Irradiation-treated colour | Laboratory-grown | |
|---|---|---|---|
| Cause of colour | Nitrogen in the crystal lattice, incorporated during growth in the earth's crust over millions of years. | A natural diamond whose colour was altered in a laboratory by irradiation (or HPHT). The treatment is stable and legitimate, but must always be disclosed. | A stone created by the CVD or HPHT process. Physically and chemically identical to a natural diamond, but with its own GIA report (LGDR) and a more accessible price. |
| Documentation & disclosure | GIA certificate stating colour origin “Natural”. | Mandatory disclosure; GIA notes the treatment in the certificate and as a girdle inscription. Always declared. | A separate GIA report (LGDR). Always transparently labelled. |
| Value | Highest — the rarest category. | Lower than natural; valued for the accessibility of the colour. | Most accessible. |
Value & rarity
The most accessible colour — and still a rarity
Yellow is the most common fancy colour and is therefore the gateway into natural coloured diamonds. That does not make it ordinary: at the highest saturation and a pure hue, Fancy Vivid Yellow remains a true rarity.
1 in 10,000
Rarity of colour
Per GIA, only about 1 in 10,000 carats of polished diamonds shows fancy colour. Yellow is the most common of the fancy colours — but it is still a coloured diamond.
Fancy Vivid
Saturation decides
Intensity grade is the main price driver for yellows. Fancy Vivid Yellow costs many times more than Fancy Light Yellow with otherwise equal parameters.
GIA
Documented origin
A certificate confirming colour origin “Natural” distinguishes a natural yellow diamond from irradiation-treated and laboratory stones.
What drives the price
For white diamonds the 4Cs decide in the usual order. For coloured diamonds colour comes first — judged through hue, tone and saturation. The factors we watch:
Swipe to see the full table
| Factor | What we look at | Why it matters for price |
|---|---|---|
| Intensity grade | Fancy Light → Fancy Vivid | The strongest price driver; Fancy Vivid is many times dearer than lighter grades. |
| Hue purity | Pure yellow vs. modifiers | A pure Fancy Vivid Yellow is rarer than a greenish or orangy yellow. |
| Weight | Whole and threshold weights | Larger stones are rarer; price per carat rises disproportionately with size. |
| Cut shape | Radiant, cushion | These cuts concentrate colour best — the most sought-after for yellows. |
| Colour origin | Natural / treated / laboratory | Three separate price categories — always transparently labelled. |
Compiled by Arete Diamond gemologists for educational purposes. Not financial or investment advice.
Frequently asked
Frequently asked questions
Consultation
Looking for a particular hue or intensity grade?
We will source a natural coloured diamond to your brief — the saturation, shape and weight you want — always with a GIA certificate and documented colour origin.
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