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 859,333 active J colour listings across our retailer network. The typical natural J diamond trades around €1,859/ct while the lab-grown equivalent sits at €1,314/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 18.5% 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 401,265 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 | 401,265 | €1,685/ct |
| OVAL | natural | 82,728 | €2,222/ct |
| EMERALD | natural | 67,293 | €2,240/ct |
| ROUND | lab grown | 61,878 | €1,303/ct |
| PEAR | natural | 60,039 | €2,017/ct |
| PRINCESS | natural | 39,499 | €1,908/ct |
| CUSHION | natural | 38,847 | €2,260/ct |
| HEART | natural | 25,603 | €1,752/ct |
| RADIANT | natural | 18,355 | €2,049/ct |
| MARQUISE | natural | 15,875 | €1,886/ct |
| ASSCHER | natural | 14,390 | €2,084/ct |
| OVAL | lab grown | 12,379 | €1,403/ct |
| PEAR | lab grown | 5,408 | €1,278/ct |
| EMERALD | lab grown | 3,612 | €1,354/ct |
| CUSHION | lab grown | 3,164 | €1,276/ct |
| PRINCESS | lab grown | 3,090 | €1,325/ct |
| RADIANT | lab grown | 2,307 | €1,277/ct |
| OTHER | natural | 1,149 | €2,887/ct |
| MARQUISE | lab grown | 1,042 | €1,442/ct |
| HEART | lab grown | 547 | €1,197/ct |
| TRILLION | natural | 427 | €2,951/ct |
| ASSCHER | lab grown | 274 | €968/ct |
| OTHER | lab grown | 103 | €528/ct |
| BAGUETTE | natural | 53 | €2,735/ct |
| ROUND | unknown | 44 | €1,281/ct |
| BAGUETTE | lab grown | 9 | €328/ct |
| SQ_RADIANT | natural | 6 | €1,178/ct |
Breakdown by Carat
| Carat | Origin | Listings | Median (EUR) |
|---|---|---|---|
| 0.5-0.99ct | natural | 240,048 | €1,351/ct |
| 0.5-0.99ct | lab grown | 16,909 | €1,357/ct |
| 0.5-0.99ct | unknown | 13 | €1,896/ct |
| 1.0-1.49ct | natural | 176,724 | €2,209/ct |
| 1.0-1.49ct | lab grown | 14,825 | €1,307/ct |
| 1.0-1.49ct | unknown | 1 | €5,552/ct |
| 1.5-1.99ct | natural | 110,360 | €3,215/ct |
| 1.5-1.99ct | lab grown | 16,348 | €1,341/ct |
| 1.5-1.99ct | unknown | 1 | €6,204/ct |
| 2.0-2.99ct | natural | 66,054 | €4,962/ct |
| 2.0-2.99ct | lab grown | 30,598 | €1,354/ct |
| 2.0-2.99ct | unknown | 5 | €4,213/ct |
| 3.0ct+ | natural | 30,532 | €9,378/ct |
| 3.0ct+ | lab grown | 7,571 | €599/ct |
| under-0.5ct | natural | 141,811 | €1,266/ct |
| under-0.5ct | lab grown | 7,564 | €1,261/ct |
| under-0.5ct | unknown | 27 | €1,077/ct |
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