G Color
Live pricing and availability for G color diamonds across natural and lab-grown origins.
What G Color Means for Buyers
G sits on the GIA color scale that runs from D (colorless) 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 1,977,271 active G color listings across our retailer network. The typical natural G diamond trades around $3,951/ct while the lab-grown equivalent sits at $861/ct. Roughly a 78% gap that reflects the broader natural-vs-lab pricing gap, not a quality difference at this grade.
At -0.6% above the neighboring H grade, the premium for G is subtle. Barely enough to move the needle on total budget. Unless you specifically want the paper grade, H is interchangeable for most buyers and leaves money on the table for cut or carat weight.
G shows up most often in ROUND. About 548,537 listings at this moment. Followed by ROUND. 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 color is G or H. Colorless-appearing face-up, still a near-colorless 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 color.
Breakdown by Shape
| Shape | Origin | Listings | Median (NZD) |
|---|---|---|---|
| ROUND | natural | 548,537 | $3,786/ct |
| ROUND | lab grown | 274,334 | $1,310/ct |
| OVAL | natural | 133,630 | $4,700/ct |
| EMERALD | natural | 111,440 | $3,836/ct |
| PEAR | natural | 109,268 | $3,823/ct |
| OVAL | lab grown | 102,102 | $742/ct |
| EMERALD | lab grown | 101,637 | $770/ct |
| RADIANT | lab grown | 85,853 | $720/ct |
| PEAR | lab grown | 81,935 | $885/ct |
| HEART | natural | 64,799 | $3,767/ct |
| CUSHION | natural | 55,590 | $4,543/ct |
| PRINCESS | natural | 49,415 | $3,980/ct |
| PRINCESS | lab grown | 48,037 | $792/ct |
| CUSHION | lab grown | 46,388 | $734/ct |
| MARQUISE | lab grown | 44,801 | $653/ct |
| RADIANT | natural | 26,420 | $5,165/ct |
| MARQUISE | natural | 24,946 | $3,714/ct |
| HEART | lab grown | 23,585 | $833/ct |
| ASSCHER | natural | 23,229 | $4,381/ct |
| ASSCHER | lab grown | 15,855 | $868/ct |
| OTHER | natural | 1,968 | $4,481/ct |
| OTHER | lab grown | 1,882 | $1,057/ct |
| BAGUETTE | natural | 484 | $4,430/ct |
| BAGUETTE | lab grown | 456 | $813/ct |
| TRILLION | natural | 362 | $6,888/ct |
| TRILLION | lab grown | 284 | $1,079/ct |
| ROUND | unknown | 55 | $2,992/ct |
| SQ_RADIANT | lab grown | 25 | $656/ct |
| SQ_RADIANT | natural | 18 | $2,070/ct |
| RADIANT | unknown | 15 | $7,393/ct |
| EMERALD | unknown | 13 | $3,010/ct |
| OVAL | unknown | 11 | $17,077/ct |
Breakdown by Carat
| Carat | Origin | Listings | Median (NZD) |
|---|---|---|---|
| 0.5-0.99ct | natural | 472,910 | $3,338/ct |
| 0.5-0.99ct | lab grown | 76,827 | $2,369/ct |
| 0.5-0.99ct | unknown | 26 | $3,350/ct |
| 1.0-1.49ct | natural | 229,575 | $6,092/ct |
| 1.0-1.49ct | lab grown | 128,977 | $833/ct |
| 1.0-1.49ct | unknown | 21 | $7,393/ct |
| 1.5-1.99ct | natural | 92,062 | $10,263/ct |
| 1.5-1.99ct | lab grown | 119,013 | $771/ct |
| 1.5-1.99ct | unknown | 11 | $12,071/ct |
| 2.0-2.99ct | natural | 59,364 | $16,308/ct |
| 2.0-2.99ct | lab grown | 174,677 | $769/ct |
| 2.0-2.99ct | unknown | 15 | $16,858/ct |
| 3.0ct+ | natural | 25,336 | $27,626/ct |
| 3.0ct+ | lab grown | 262,728 | $643/ct |
| 3.0ct+ | unknown | 8 | $956/ct |
| under-0.5ct | natural | 270,859 | $2,809/ct |
| under-0.5ct | lab grown | 64,952 | $2,274/ct |
| under-0.5ct | unknown | 23 | $2,793/ct |
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