Black Diamond

Carbon

Key Properties

Property Value
Mohs Hardness 10.0 (10)
Typical Size 0.25-20 carats (commercial: 0.5-5 carats; larger stones available but expensive)
Typical Price Range $200-3,000+ per carat (commercial: $300-1,500; natural Carbonado $1,000-3,000+)
Rarity Level Unique Geological
Availability Level Limited Supply
Availability Driver Limited Deposits
Investment Appropriateness Emerging Investment Gems

Pricing

Typical Price
$400.00
per carat
Listing Price
$101.08
per carat
Sold Price
$60.00
per carat
My Price
N/A
per carat

Price Calculator

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BULLISH
76.88

Score Components

Geo rarity
85
Mkt availability
65
Invest Appr
75
hardness
100
price
65

Buy This Gem

Gem Rock Auctions Best In Gems

Detailed Descriptions

Rarity Description: Polycrystalline diamond with dark color from graphite inclusions or irradiation; natural Carbonado from Brazil and Central African Republic is rarest form.

Availability Description: Available through specialty dealers; natural black diamonds less common than treated; Carbonado is museum-grade rarity.

Investment Description: Growing fashion popularity; natural untreated specimens command premium; Carbonado variety extremely rare; moderate investment potential for certified natural stones.

Seller Prices

Seller Faceted Price Rough Price
suchengems $70.43/ct -
preciouscarats $32.65/ct -

Price History (Last 3 Years)

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Origin Variants

No origin variants found for this gem.

Color Variants

Variant Color Rarity Price Multiplier
Black Diamond Black Uncommon x1.00

Price Levels of Origin and Color Variants on MC

No multicolour pricing data available for this gem.

Current Listings

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Other gems in the Carbon:

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