Diamond Rarity
wheel / straight color

Fancy Violet

0.1% of >15,000 blue/gray/violet study stones

GIA study figure
15
Last decade in the 2018 publication
exact lifetime count: not publicly disclosed
Est. graded 2006–2025
26–31
scenario envelope, not a census
Median USD per carat
—
no auction sale
Rarity-adjusted value
insufficient data
needs 3+ included sales · n=0
insufficient data
auction sales by intensity0 sales
  1. Fancy Deep—
  2. Fancy Vivid—
  3. Fancy Intense—
  4. Fancy—
  5. Fancy Light—
price by intensity
IntensityIncluded nMedian $/ctMean $/ctLow – highSince 2020QualifiedStudy stonesShare of cohort
Fancy Light————————
Fancy——————12—
Fancy Intense————————
Fancy Vivid————————
Fancy Deep————————
methodologyshow
read before interpreting

The previous ≈15 was derived, not a published stone count. Rio Tinto’s 2025 tender disclosure is separate and cannot be added. No verified public straight-violet auction USD/ct located.

argyle and GIA

Rio 2016: 12 polished ct of tender violet over 32 years, including modifiers. Rio 2025: 12 producer-described GIA Fancy Violet diamonds; individual reports not audited. Different units and populations; no lifetime total.

two-color grades on this hue
auction sales0 included · 0 qualified

No auction sale in this dataset.

population scenarios 2006–2025
point input15 · window 2008–2017
scenario envelope 2006–202526–31
IN15
M130
M2A30
M2B31
M326

0.1% × 15,000 (R07). Rounded share and lower-bounded study population; 15 is a proxy, not an exact count or strict floor.

Argyle is important for violet, but tender carats, selected stones and all-origin lab submissions differ. No quantified factor-of-two uncertainty is supported.

supply evidence
this exact grade
IDCohortIntensity binStonesSharePeriod · scopeLimitsSource
S062VioletFancy12—2025 final Beyond Rare tender
Exact hue per producer; tender inventory

Individual GIA reports not audited. Selected inventory, not all grading or production.

Rio Tinto release; AR02
evidence
R07
G3
Violet — unmodified0.1% of >15,000Exact count not stated
>15,000 blue/gray/violet study submissions · Pre-2018 study; described as last decade

Figure 3 visually rechecked: 0.1% straight Violet. Exact count is not disclosed. Former 15 proxy removed.

AR01
Argyle
Violet family · Tender production12 polished carats
Selected violet diamonds for tender · 32 years through May 2016 · Includes modified hues

Weight, not 12 stones or lifetime production.

AR02
Argyle
Violet · 2025 tender inventory12 diamonds
Rio Tinto calls these GIA Fancy Violet · 2025 final Beyond Rare tender · Issuer states GIA grade; individual reports not available here

Use as a dated tender disclosure, not an audited lifetime straight-violet census.

AR14
Argyle
Argyle Violet · Grade cross-check2.83 ct
Argyle BL3; GIA Fancy Deep Grayish Bluish Violet · 2016 · Three color terms

Exclude from straight and two-color price comparisons.