Platinum calculator

Platinum calculator for marked or assayed jewelry. Enter net grams, pennyweight or troy ounces, specify fees and export a printable worksheet.

$440.439.5 g fine platinum · price below

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Calculation result

Metal value

$440.43

$44.04 per gram of 950 fine platinum

Material: Platinum
Net weight: 10 g
Purity: 950 · 95%
Fine platinum: 9.5 g
Fine troy ounces: 0.305 ozt

0.305 fine troy oz × $1,442.00 / troy oz

Your buyer’s offer

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Comparison

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Fees, if any ($)

10 g of 950 fine platinum contains 9.5 g of fine platinum, worth $440.43 at $1,442.00 per troy ounce. Spot price · Nov 2, 1:21 PM UTC · gold-api.com.

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Read 950 Pt and 900 Pt/Ir correctly

Platinum rings and settings can contain different alloys. A 950 Pt mark means 95% platinum. A confirmed 900 platinum / 100 iridium alloy contains 90% platinum: enter 900 to value its platinum content.

Separate the setting from the stone

Use the net platinum-alloy weight of the ring or setting. The remaining iridium or other alloying metal is not valued at the platinum price. If the alloy is uncertain, use the fineness reported by an assay.

950 Pt: 95% platinum
900 Pt/Ir: 90% platinum
850 Pt: 85% platinum

Platinum alloy price per gram

1 g net platinum alloy · only the platinum fraction is valued
Mark / fineness	Fine platinum (g)	Value / gram
850 Pt	0.85	$39.41
900 Pt	0.9	$41.73
950 Pt	0.95	$44.04
999.5 Pt	1	$46.34

Pt and Plat describe platinum. A 900 platinum / 100 iridium setting has 90% platinum; the iridium fraction is not valued at the platinum quote. The .9995 bullion standard differs from jewellery alloys.