How much is 18K gold per gram in Japan today?

¥16,497 per gram of 18K at today's spot and exchange rate; see the timestamp under the table.

What tax applies to jewellery in Japan?

10% VAT. The studio's price estimate adds it for you.

Which karat is common in Japan?

18K is common in France, Italy, Switzerland, the UK's fine trade and most luxury houses; the estimate assumes the local norm when a piece has no hallmark and says so.

Is the gold price different in each country?

No. Gold has one world price in USD; the local figure is that price converted at today's exchange rate, plus local premiums and tax when you buy.

Japan · 10% VAT on jewellery

18K gold price per gram in JPY today

¥16,497 per gram · ¥164,966 per 10 g · 1 USD = 155.836 JPY

18K (750) is 75.0% gold. In Japan jewellery carries 10% VAT, added to the shop price on top of the metal, the stones, the making and the margins.

Every karat in JPY

Karat	Hallmark	Purity	JPY per gram	per 10 g
9K	375	37.5%	¥8,248	¥82,483
10K	417	41.7%	¥9,172	¥91,721
14K	585	58.5%	¥12,867	¥128,674
18K	750	75.0%	¥16,497	¥164,966
21K	875	87.5%	¥19,246	¥192,461
22K	916	91.6%	¥20,148	¥201,479
24K	999	99.9%	¥21,974	¥219,735

Spot $4,390.10 per troy ounce ($141.15 per gram of pure gold) from gold-api.com, Fri, 18 Sep 2026 06:15:08 UTC; exchange rates from open.er-api.com. Refreshed daily. Per-gram figures are pure gold price × karat purity; dealers buy and sell a few percent either side.

What typical 18K pieces are worth in JPY

Typical piece	Weight	18K metal value
Thin wedding band (2 mm)	2.5 g	¥41,242
Classic wedding band (4 mm)	4.8 g	¥79,184
Solitaire ring	3.5 g	¥57,738
Signet ring	10 g	¥164,966
45 cm cable chain (1.5 mm)	3.5 g	¥57,738
50 cm curb chain (4 mm)	14 g	¥230,953
Solid bangle (5 mm)	30 g	¥494,899
Pair of hoop earrings	3 g	¥49,490

Metal value only, at spot: what the gold in the piece is worth today. Add stones, making and margins for a shop price; take about 85% for a scrap payout.

Frequently asked

How much is 18K gold per gram in Japan today?: ¥16,497 per gram of 18K at today's spot and exchange rate; see the timestamp under the table.
What tax applies to jewellery in Japan?: 10% VAT. The studio's price estimate adds it for you.
Which karat is common in Japan?: 18K is common in France, Italy, Switzerland, the UK's fine trade and most luxury houses; the estimate assumes the local norm when a piece has no hallmark and says so.
Is the gold price different in each country?: No. Gold has one world price in USD; the local figure is that price converted at today's exchange rate, plus local premiums and tax when you buy.

18K in other currencies

9K in JPY 10K in JPY 14K in JPY 21K in JPY 22K in JPY 24K in JPY