wheel / straight color
Fancy Gray
33.1% of >15,000 blue/gray/violet study stones
GIA study figure
5k
Last decade in the 2018 publication
exact lifetime count: not publicly disclosed
exact lifetime count: not publicly disclosed
Est. graded 2006–2025
9.8k–10.3k
scenario envelope, not a census
Median USD per carat
$8.6k
n=11 included · $1.4k–$31.6k · 0.2–11.02 ct · 1992–2024
Rarity-adjusted value
not comparable
GIA submission counts for this color do not track natural supply
not comparable
auction sales by intensity9 sales
price by intensity
| Intensity | Included n | Median $/ct | Mean $/ct | Low – high | Since 2020 | Qualified | Study stones | Share of cohort |
|---|---|---|---|---|---|---|---|---|
| Fancy Light | — | — | — | — | — | — | — | — |
| Fancy | 9 | $9.3k | $13.0k | $1.4k – $31.6k | $17.5k · n=1 | — | — | — |
| Fancy Intense | — | — | — | — | — | — | — | — |
| Fancy Vivid | — | — | — | — | — | — | — | — |
| Fancy Deep | — | — | — | — | — | — | — | — |
methodologyshow
read before interpreting
The former ≈4,965 was calculated from a denominator floor. Exact count is not disclosed; gray is separate from modified gray hues.
two-color grades on this hue
Gray dominant · 6
auction sales11 included · 0 qualified
| ID | Intensity | Lot / stone | Carats | Clarity | Sale | Realised | USD / ct | Status | Sources |
|---|---|---|---|---|---|---|---|---|---|
| A57 | Fancy | Gray diamond ring Colored and colorless accent diamonds contribute to lot value. | 2.02 ct | SI2 | Phillips New York · 25 Jun 2021 | USD 35,280 $35,280 · USD as reported | $17.5k | Included | lot · result |
| A58 | Fancy | Gray diamond pendant necklace 0.08 ct pink halo (color origin untested) and gold chain included. Sold total includes buyer premium. | 0.20 ct | SI1 | Heritage Dallas · 7 Dec 2015 | USD 625 $625 · USD as reported | $3.1k | Included | lot |
| A234 | Fancy | AN UNMOUNTED CIRCULAR-CUT FANCY GRAY DIAMOND Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 0.79 ct | Not stated | Christie's New York (online) · 14 Apr 1999 | USD 4,830 $4,830 · USD as reported | $6.1k | Included | lot |
| A250 | Fancy Dark | A FANCY DARK GRAY DIAMOND RING Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 7.07 ct | Not stated | Christie's New York (online) · 6 Mar 2001 | USD 35,250 $35,250 · USD as reported | $5.0k | Included | lot |
| A258 | Fancy Dark | NO RESERVE | UNMOUNTED COLORED DIAMOND Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 2.70 ct | SI1 | Christie's New York (online) · 14 Jun 2024 | USD 15,120 $15,120 · USD as reported | $5.6k | Included | lot |
| A262 | Fancy | FANCY GRAY DIAMOND RING Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 11.02 ct | Not stated | Christie's New York (online) · 14 Apr 1992 | USD 164,000 $164,000 · USD as reported | $14.9k | Included | lot |
| A290 | Fancy | BAGUE DIAMANTS DE COULEUR Whole-lot price divided by target colored carat weight; mounting, accents and signature are included. | 10.26 ct | Not stated | Christie's Paris · 5 Dec 2017 | EUR 11,875 $14,036 · FRED USD per local unit; sale date | $1.4k | Included | lot · fx |
| A564 | Fancy | A COLOURED DIAMOND AND DIAMOND RING Whole-lot auction result divided by target carats; setting and accents are not deducted. | 6.53 ct | VVS1 | Christie's Hong Kong · 26 Nov 2013 | HKD 1,600,000 $206,396 · FRED local units per USD; sale date | $31.6k | Included | lot · fx |
| A721 | Fancy | A COLORED DIAMOND AND DIAMOND RING Whole-lot auction result divided by target carats; setting and accents are not deducted. | 4.02 ct | SI1 | Christie's New York · 20 Apr 2016 | USD 37,500 $37,500 · USD as reported | $9.3k | Included | lot |
| A741 | Fancy | A COLORED DIAMOND RING Whole-lot auction result divided by target carats; setting and accents are not deducted. | 10.00 ct | SI1 | Christie's New York · 17 Apr 2012 | USD 242,500 $242,500 · USD as reported | $24.3k | Included | lot |
1–10 of 11
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population scenarios 2006–2025
point input5k · window 2008–2017
scenario envelope 2006–20259.8k–10.3k
IN5k
M19.8k
M2A10.1k
M2B10.3k
33.1% × 15,000 (R32). Rounded share times population bound; inferred point and approximate decade window.
Includes pale grades. Rounded percentages do not reveal an exact count. The scenario envelope measures selected assumptions only.
supply evidence
this exact grade
| ID | Cohort | Intensity bin | Stones | Share | Period · scope | Limits | Source |
|---|---|---|---|---|---|---|---|
| S072 | Gray | 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
R32
G3
Gray — unmodified33% of >15,000Exact count not stated
>15,000 blue/gray/violet submissions · Pre-2018 study; last decade
Published share of >15,000 study stones, including pale grades. Former 4,965 proxy removed.
Eaton-Magaña et al. (2018), Natural-Color Blue, Gray, and Violet Diamonds: Allure of the Deep · Figure 3; color-distribution text