J Colour
Live pricing and availability for J colour diamonds across natural and lab-grown origins.
What J Colour Means for Buyers
J sits on the GIA colour scale that runs from D (colourless) at the top through to Z (faint yellow or brown). The higher up you go toward D, the rarer the stone and the steeper the price curve. But a huge number of buyers never tell the difference between two adjacent grades in a finished ring, especially once the diamond is mounted in yellow or rose gold.
Right now we're tracking 864,301 active J colour listings across our retailer network. The typical natural J diamond trades around €1,858/ct while the lab-grown equivalent sits at €1,313/ct. Roughly a 29% gap that reflects the broader natural-vs-lab pricing gap, not a quality difference at this grade.
The jump to J is a significant 18.4% step up from the neighboring K grade. A real budget decision. If the stone will be set in a ring with a visible profile, the upgrade can be worth it. If not, K is the value play and the difference rarely shows face-up.
J shows up most often in ROUND. About 405,984 listings at this moment. Followed by OVAL. Most of the supply clusters around the 0.5-0.99ct carat range, where demand is strongest and retailers keep the deepest inventory. If you're shopping an unusual shape or carat, expect thinner selection.
For most engagement-ring buyers, the practical sweet spot for colour is G or H. Colourless-appearing face-up, still a near-colourless grade on paper, and priced 30 to 50% below the D-E tier. If you're setting the stone in yellow or rose gold, you can comfortably go down to I or J without the stone looking warm. Save the money for a better cut grade; cut drives sparkle far more than the last step of colour.
Breakdown by Shape
| Shape | Origin | Listings | Median (EUR) |
|---|---|---|---|
| ROUND | natural | 405,984 | €1,688/ct |
| OVAL | natural | 82,764 | €2,224/ct |
| EMERALD | natural | 67,272 | €2,239/ct |
| ROUND | lab grown | 62,062 | €1,302/ct |
| PEAR | natural | 60,125 | €2,016/ct |
| PRINCESS | natural | 39,545 | €1,909/ct |
| CUSHION | natural | 38,832 | €2,261/ct |
| HEART | natural | 25,643 | €1,752/ct |
| RADIANT | natural | 18,353 | €2,047/ct |
| MARQUISE | natural | 15,867 | €1,888/ct |
| ASSCHER | natural | 14,349 | €2,087/ct |
| OVAL | lab grown | 12,383 | €1,403/ct |
| PEAR | lab grown | 5,411 | €1,278/ct |
| EMERALD | lab grown | 3,593 | €1,350/ct |
| CUSHION | lab grown | 3,164 | €1,276/ct |
| PRINCESS | lab grown | 3,073 | €1,326/ct |
| RADIANT | lab grown | 2,298 | €1,277/ct |
| OTHER | natural | 1,153 | €2,881/ct |
| MARQUISE | lab grown | 1,042 | €1,442/ct |
| HEART | lab grown | 546 | €1,197/ct |
| TRILLION | natural | 428 | €2,954/ct |
| ASSCHER | lab grown | 275 | €968/ct |
| OTHER | lab grown | 99 | €527/ct |
| BAGUETTE | natural | 56 | €2,698/ct |
| ROUND | unknown | 44 | €1,281/ct |
| BAGUETTE | lab grown | 8 | €936/ct |
| SQ_RADIANT | natural | 6 | €1,178/ct |
Breakdown by Carat
| Carat | Origin | Listings | Median (EUR) |
|---|---|---|---|
| 0.5-0.99ct | natural | 241,846 | €1,356/ct |
| 0.5-0.99ct | lab grown | 16,927 | €1,359/ct |
| 0.5-0.99ct | unknown | 13 | €1,896/ct |
| 1.0-1.49ct | natural | 177,155 | €2,213/ct |
| 1.0-1.49ct | lab grown | 14,817 | €1,308/ct |
| 1.0-1.49ct | unknown | 1 | €5,552/ct |
| 1.5-1.99ct | natural | 110,673 | €3,217/ct |
| 1.5-1.99ct | lab grown | 16,393 | €1,340/ct |
| 1.5-1.99ct | unknown | 1 | €6,204/ct |
| 2.0-2.99ct | natural | 66,256 | €4,968/ct |
| 2.0-2.99ct | lab grown | 30,663 | €1,348/ct |
| 2.0-2.99ct | unknown | 5 | €4,213/ct |
| 3.0ct+ | natural | 30,619 | €9,388/ct |
| 3.0ct+ | lab grown | 7,564 | €599/ct |
| under-0.5ct | natural | 143,828 | €1,273/ct |
| under-0.5ct | lab grown | 7,592 | €1,261/ct |
| under-0.5ct | unknown | 27 | €1,077/ct |
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