wheel / two-color grade · dominant Green

Gray-green

Group share

Green with gray/brown undertones

Exact count

Not disclosed

GIA publishes group shares, not per-grade counts

Median USD per carat

$6.6k

n=1 included · $6.6k–$6.6k · 1.09–1.09 ct · 2000–2000

Rarity-adjusted value

insufficient data

two-color grades have no published population

auction sales by intensity1 sale

price by intensity

Intensity	Included n	Median $/ct	Mean $/ct	Low – high	Since 2020	Qualified	Study stones	Share of cohort
Fancy Light	—	—	—	—	—	—	—	—
Fancy	1	$6.6k	$6.6k	—	—	—	—	—
Fancy Intense	—	—	—	—	—	—	—	—
Fancy Vivid	—	—	—	—	—	—	—	—
Fancy Deep	—	—	—	—	—	—	—	—

methodologyshow

read before interpreting

6% is remainder after 54%, 28%, 12%; includes combinations, not exact two-color count.

argyle context

No separate Argyle count established.

auction sales1 included · 0 qualified

ID	Intensity	Lot / stone	Carats	Clarity	Sale	Realised	USD / ct	Status	Sources
A700	Fancy	A FANCY GRAY-GREEN "CHAMELEON" DIAMOND AND DIAMOND PENDANT Natural Fancy Gray-Green; GIA catalogue comment identifies reversible chameleon behavior.	1.09 ct	Not stated	Christie's Hong Kong · 2 May 2000	HKD 56,400 $7,241 · FRED local units per USD; sale date	$6.6k	Included	lot · fx

supply evidence

this exact grade

ID	Cohort	Intensity bin	Stones	Share	Period · scope	Limits	Source
S118	Gray-green	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

R29

Green with gray/brown undertones6%Exact count not stated

Remainder of green study color distribution · Pre-2018 study; last decade

6% is remainder after 54%, 28%, 12%; includes combinations, not exact two-color count.