Diaspore

Oxide Group

Key Properties

Property Value
Mohs Hardness 6.75 (6.5-7)
Typical Size 0.5-10 carats (commercial: 1-5 carats; color-change varieties typically smaller)
Typical Price Range $100-1,000+ per carat (commercial: $200-600; color-change "Zultanite" $400-1,000+)
Rarity Level Limited Occurrence
Availability Level Limited Supply
Availability Driver Limited Deposits
Investment Appropriateness Fashion/Trend Gems

Pricing

Typical Price
$100.00
per carat
MC Price
$57.77
per carat
Listing Price
$94.83
per carat
Sold Price
$33.29
per carat
My Price
N/A
per carat
Hunt Target Price
N/A
per carat

Price Calculator

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NEUTRAL
48.12

Score Components

Geo rarity
65
Mkt availability
65
Invest Appr
25
hardness
10
price
65

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Detailed Descriptions

Rarity Description: Aluminum oxide hydroxide showing color change; gem-quality material is primarily from Turkey and relatively uncommon.

Availability Description: Marketed as 'Zultanite' or 'Csarite' showing color change; available through specialty dealers, primarily from Turkish deposits.

Investment Description: Color-change variety marketed as Zultanite/Csarite; moderate investment potential; primarily Turkish source; fashion-influenced with limited but stable market.

Seller Prices

Seller Faceted Price Rough Price Asking PPC, Faceted Asking PPC, Rough
shahim2015 $92.66/ct - $78.43/ct -
galleria $68.90/ct - $80.62/ct -
diamonddesire $56.72/ct - $75.64/ct -
mineralscollection $56.18/ct - - -
gemex $41.36/ct - $66.48/ct -
qualitygemsmine $36.43/ct - - -
crysta1gems $33.54/ct - $63.40/ct -
waranyugemsmart $32.47/ct - $71.38/ct -
preciouscarats $29.58/ct - $116.28/ct -
thedivinegemz $21.93/ct - - -
fakhr $21.10/ct $1.51/ct $13.62/ct $0.87/ct
sunjz $18.60/ct - - -
zayangems $16.78/ct - - -
trueblueminerals $5.71/ct - $125.12/ct -
puti $1.00/ct - - -
mineralsmaniastones - - $300.00/ct -
mineralsmarvelgems - - $163.93/ct -
cityofgems-chantburi - - $125.56/ct -
deluxegems - - $115.69/ct -
suchengems - - $110.18/ct -
kohinoordiamonds - - $39.75/ct -
limragems - - $31.76/ct -
beautifulgems - - $23.26/ct -
allgems2025 - - - $75.59/ct

Price History (Last 3 Years)

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Origin Variants

Origin Rarity Price Multiplier Multiplier in MC
Afghanistan x1.00 x2.49
Turkey x1.00 x0.90
Tanzania x1.00 x0.87

Color Variants

Variant Color Rarity Price Multiplier Multiplier in MC
Yellow Diaspore Yellow Common x1.00 x0.90
Champagne Diaspore Champagne to Pink Uncommon x1.00 -
Color-Change Diaspore Color-Change Rare x1.00 -
Green Diaspore Green Common x1.00 -

Price Levels of Origin and Color Variants on MC

Origin Colour Clarity Price Per Carat # Listings Avg Weight
Afghanistan medium light purple Eye clean $144.19/ct 1 2.67 ct
Turkey very light orangy yellow [brownish] Moderately included $60.00/ct 1 8.39 ct
Turkey very light orangy yellow [brownish] Slightly included $50.29/ct 12 1.76 ct
Turkey very light orangy yellow [brownish] Moderately to Heavily included $50.00/ct 1 1.37 ct
Tanzania very light orangy yellow [brownish] Eye clean $50.00/ct 1 1.49 ct
Turkey very light orangy yellow [brownish] Eye clean $50.00/ct 4 1.57 ct
Turkey very light orangy yellow [brownish] Eye clean to Slightly included $50.00/ct 2 1.30 ct

Current Listings

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