Diamond Rarity
wheel / straight color

Fancy Purple

0.05% of >90,000 pink/purple/red/brown study stones; ~50 submitted purple diamonds summarized (Box A)

GIA study figure
50
January 2008–December 2016
exact lifetime count: not publicly disclosed
Est. graded 2006–2025
112–118
scenario envelope, not a census
Median USD per carat
—
no included sale · 1 qualified
Rarity-adjusted value
insufficient data
needs 3+ included sales · n=0
insufficient data
auction sales by intensity1 sale
  1. Fancy Deep—
  2. Fancy Vivid—
  3. Fancy Intense—
  4. Fancy$253k/ct · 1.04 ct · 2011
  5. Fancy Light—
price by intensity
IntensityIncluded nMedian $/ctMean $/ctLow – highSince 2020QualifiedStudy stonesShare of cohort
Fancy Light————————
Fancy—————$253k · n=1——
Fancy Intense————————
Fancy Vivid————————
Fancy Deep————————
methodologyshow
read before interpreting

GIA 2018 Box A summarizes approximately 50 submitted unmodified purple diamonds — a published approximation consistent with the 0.05% share, replacing the earlier derived ≈45. Exact number examined and lifetime total are not disclosed.

argyle and GIA

No additional Argyle population claim used.

two-color grades on this hue
auction sales0 included · 1 qualified
IDIntensityLot / stoneCaratsClaritySaleRealisedUSD / ctStatusSources
A11Fancy
Bullet-shaped purple pendant necklace
MAJOR CONFOUND: includes 3.66 ct D/IF marquise plus another diamond. Lot-normalized amount is not standalone purple value.
1.04 ctNot reported
Christie's
Geneva · 18 May 2011
CHF 231,000
$262,739 · FRED local per USD; sale date
$253kQualifiedlot · fx
population scenarios 2006–2025
point input50 · window 2008–2016
scenario envelope 2006–2025112–118
IN50
M1112
M2A115
M2B118

Approximately 50 unmodified purple stones summarized in Box A (R41). Study window associated with the 2008–2016 paper cohort.

No Argyle proxy applied. Purple sources include Russia; no all-origin grading relationship to Argyle production has been established.

supply evidence
this exact grade
IDCohortIntensity binStonesSharePeriod · scopeLimitsSource
S066PurpleFancy Intense OR Fancy Vivid—42%2008–2016 associated study cohort
Exact hue; combined intensities

42% combines Intense and Vivid. Cannot assign 42% to either individually or calculate an exact count.

Box A, 2018 paper
evidence
R05
G2
Purple — unmodified0.05% of >90,000Exact count not stated
>90,000 pink/purple/red/brown study submissions · 2008-01 through 2016-12

Published rounded share; exact purple count is not disclosed. Former 45 proxy removed.

R41
G2
Purple — unmodified; direct approximation50Bound / approximation only
Unmodified purple diamonds submitted to GIA and summarized in Box A · 2008-01 through 2016-12 (study period)

Text states GIA summarized the properties of approximately 50 submitted purple diamonds (69% under 1 ct; 42% Vivid or Intense). A published approximation consistent with the 0.05% share in R05, not an exact or lifetime count. Added in 26 Sept 2026 audit.