Free Tool · Live Spot
Platinum Price per Gram Today
Platinum trades on its own market, apart from gold and silver. Here is today’s spot turned into a price per gram for PT950, PT900 and PT850, and a calculator for what your piece holds in metal.
The Calculator
Platinum Melt Value Calculator
Pick the purity from the stamp inside the band, enter the weight, and the spot price fills itself in.
Melt value
$470.37
10 g at 95.0% ≈ 9.50 g of pure platinum
Melt value is not an offer. Every buyer, us included, pays below melt; the gap covers refining, risk and margin. What matters is how big that gap is and whether the buyer shows you the math.
By Purity
Platinum Value per Gram and per Ounce
| Platinum | Stamp | Purity | Per gram | Per troy ounce |
|---|---|---|---|---|
| Pure platinum | 999, PT999 | 99.9% | $49.46 | $1,538.46 |
| PT950 | PT950, 950PT, 950 PLAT | 95% | $47.04 | $1,463.00 |
| PT900 | PT900, 900 PLAT | 90% | $44.56 | $1,386.00 |
| Iridium-platinum | IRIDPLAT, 10% IRID | 90% | $44.56 | $1,386.00 |
| PT850 | PT850, 850 PLAT | 85% | $42.09 | $1,309.00 |
Figures at $1,540.00 per troy ounce spot. They update with the calculator.
The Formula
How the Per-Gram Price Is Built
Divide the spot price per troy ounce by 31.1035, then multiply by the purity and the weight in grams.
At $1,540.00 an ounce, pure platinum is about $49.51 a gram and PT950 is about $47.04. A 10-gram PT950 wedding band holds 9.5 grams of platinum, roughly $470.37 in melt value at that spot.
Older American pieces are often stamped IRIDPLAT or 10% IRID PLAT: 90 percent platinum hardened with 10 percent iridium. Pieces marked only PLAT or PT, or not marked at all, get tested to find the purity.
Before You Weigh
What Throws the Number Off
- White gold that looks like platinum
- White gold is gold with a bright plating, priced as gold. Use the gold calculator for anything stamped 14K or 18K.
- Stones
- Diamonds and other stones aren’t platinum. They come out of the metal weight and get valued on their own.
- Mixed-metal findings
- Earring posts, backs and some clasps on platinum pieces are made of white gold. They are priced as what they are.
- Retail price
- What a platinum ring cost new includes design, labor and markup. Melt value is the metal alone. More in our markup guide.