Herderite

Phosphate Group

Key Properties

Property Value
Mohs Hardness 5.25 (5-5.5)
Typical Size 0.5-15 carats (commercial: 1-8 carats; clean stones rare)
Typical Price Range $100-600+ per carat (commercial: $150-350; colorless/yellow over 3ct $400-600+)
Rarity Level Unique Geological
Availability Level Collectors Market
Availability Driver Limited Deposits
Investment Appropriateness Collector Gems

Pricing

Typical Price
$150.00
per carat
MC Price
$320.00
per carat
Listing Price
$245.17
per carat
Sold Price
$83.37
per carat
My Price
N/A
per carat
Hunt Target Price
N/A
per carat

Price Calculator

Estimate Type Total Value Price per Carat
Typical Cost - -
MC Price Cost - -
GSK Price Cost - -
Likely Listed Cost - -
Likely Sold Cost - -
My Price Cost - -
Hunt Target Price - -
NEUTRAL
48.75

Score Components

Geo rarity
85
Mkt availability
85
Invest Appr
0
hardness
5
price
45

Buy This Gem

Gem Rock Auctions Best In Gems

Detailed Descriptions

Rarity Description: Calcium beryllium phosphate hydroxide/fluoride; colorless to pale yellow or green. Rare collector gem; often confused with other phosphates.

Availability Description: Available through specialty dealers; Brazil and Maine sources; primarily collector interest for beryllium phosphate rarity.

Investment Description: Rare beryllium phosphate; soft for jewelry use; limited collector market; primarily for mineral collectors and specialists.

Seller Prices

Seller Faceted Price Rough Price Asking PPC, Faceted Asking PPC, Rough
ucgems $83.37/ct - - -
crysta1gems - - $917.43/ct -
fakhr - - $66.01/ct -

Price History (Last 3 Years)

Loading price data...

Origin Variants

No origin variants found for this gem.

Color Variants

No color variants found for this gem.

Price Levels of Origin and Color Variants on MC

Origin Colour Clarity Price Per Carat # Listings Avg Weight
Pakistan very light green Moderately included $320.00/ct 1 1.59 ct
Pakistan very light yellow-green Moderately included $320.00/ct 1 0.44 ct
Pakistan very light yellowish green Moderately included $320.00/ct 2 1.75 ct
Pakistan very light yellowish green Moderately to Heavily included $320.00/ct 1 2.40 ct
Pakistan very light yellow-green Slightly included $320.00/ct 1 1.00 ct
Pakistan very light yellowish green Slightly included $320.00/ct 2 1.47 ct
Pakistan very light yellowish green Slightly to Moderately included $320.00/ct 3 1.13 ct

Current Listings

Please sign in to view current listings.

Other gems in the Phosphate Group:

My Holdings of this gem

You do not have any holdings of this gem type.