goldprice.devGold in Japan is 629,859 yen per troy ounce, or 20,250 yen per gram for 24K gold. One kilogram is 20,250,428 yen. Japanese search terms: 金 = gold, 地金 = bullion, 価格 = price, グラム = gram.
Gold prices in yen by purity
Compare 24K, 22K and 18K gold per gram and per troy ounce.
| Purity | Per gram | Per troy ounce |
|---|---|---|
| 999 (24K) | ¥20,250 | ¥629,859 |
| 916 (22K) | ¥18,563 | ¥577,370 |
| 750 (18K) | ¥15,188 | ¥472,394 |
Price as of 23 Oct 2026, 03:21 UTC.
Japanese dealer prices
Compare dealer sell prices, buyback quotes and premiums over spot. Buyback is what the dealer pays you.
No Japanese dealer quote is available.
Why dealer prices differ from spot
Japan taxes gold at full consumption tax rates. Dealer sell prices include this tax, so their premiums over spot look higher than in tax-free markets.
Spot measures the reference value of the metal. A dealer sell quote includes the dealer premium and tax.
Units and gold purity
One troy ounce equals 31.1035 g. The 24K reference price is for 99.9% pure gold.
22K gold is 91.67% pure and has 22/24 of the 24K reference value. 18K gold is 75% pure and has 75% of that value.
How the yen price is calculated
We multiply XAU/USD spot per troy ounce by the live exchange rate of 157 yen per US dollar. Dividing by 31.1035 gives the price per gram.
Reference prices are for information only, not investment advice.
Get Japan's gold price through the API
Use GET https://api.goldprice.dev/v1/convert?from=XAU&to=JPY&amount=1&unit=gram for gold per gram in yen. No key is needed. The free plan includes 5,000 calls a month with a 15-minute delay and no credit card.
Use GET /v1/physical/jp for dealer sell, buyback and premium over spot per product. Dealer quotes require Basic at $19 a month or above.
curl "https://api.goldprice.dev/v1/convert?from=XAU&to=JPY&amount=1&unit=gram"