wheel / two-color grade · dominant Brown
Orangy brown
Group share
1%
Brown/orange group
Exact count
Not disclosed
GIA publishes group shares, not per-grade counts
Median USD per carat
$1.9k
n=2 included + 1 qualified · $813–$2.9k · 2.6–6.09 ct · 2001–2024
Rarity-adjusted value
insufficient data
two-color grades have no published population
auction sales by intensity0 sales
- Fancy Deep—
- Fancy Vivid—
- Fancy Intense—
- Fancy—
- Fancy Light—
price by intensity
| Intensity | Included n | Median $/ct | Mean $/ct | Low – high | Since 2020 | Qualified | Study stones | Share of cohort |
|---|---|---|---|---|---|---|---|---|
| Fancy Light | — | — | — | — | — | — | — | — |
| Fancy | — | — | — | — | — | — | — | — |
| Fancy Intense | — | — | — | — | — | — | — | — |
| Fancy Vivid | — | — | — | — | — | — | — | — |
| Fancy Deep | — | — | — | — | — | — | — | — |
methodologyshow
read before interpreting
Direction and -ish/balanced grades are not separately counted.
related grades
auction sales2 included · 1 qualified
| ID | Intensity | Lot / stone | Carats | Clarity | Sale | Realised | USD / ct | Status | Sources |
|---|---|---|---|---|---|---|---|---|---|
| A254 | Fancy Dark | AN UMOUNTED FANCY DARK ORANGY BROWN CIRCULAR-CUT DIAMOND Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 2.60 ct | Not stated | Christie's NewYorkChristie'sEast · 11 Jun 2001 | USD 2,115 $2,115 · USD as reported | $813 | Included | lot |
| A260 | Fancy Dark | NO RESERVE | UNMOUNTED COLORED DIAMOND Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 6.09 ct | SI2 | Christie's New York (online) · 11 Sept 2024 | USD 17,640 $17,640 · USD as reported | $2.9k | Included | lot |
| A256 | Fancy Dark | COLOURED DIAMOND AND DIAMOND RING Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. Natural color origin not explicitly repeated in the accessible catalog; retained as a qualified catalog observation, not a verified natural-color sample. Catalog flags an old report. | 3.58 ct | SI2 | Christie's Hong Kong (online) · 6 Jun 2024 | HKD 214,200 $27,424 · FRED local units per USD; sale date | $7.7k | Qualified | lot · fx |
supply evidence
this exact grade
| ID | Cohort | Intensity bin | Stones | Share | Period · scope | Limits | Source |
|---|---|---|---|---|---|---|---|
| S106 | Orangy brown | Individual intensity bins | — | — | Reviewed GIA papers, 2002–2025 Evidence gap for exact grade | An all-intensity hue count or pooled-family distribution does not disclose this exact hue’s distribution. Blank numeric cells mean unavailable, not zero. | See GIA Evidence hue cohorts |
evidence
R12
G1
Brown/orange group1%Exact count not stated
Several hundred thousand yellow/orange submissions · Pre-2020 study; nearly a decade
Direction and -ish/balanced grades are not separately counted.