🇯🇵Gold Rate in Koga Today
The gold rate in Koga today is ¥21,568 per gram for 22K, based on an international spot price of $4,604.40 per troy ounce. That is up ¥504.95 from the previous close. This is the international spot price converted into JPY for Koga. Jewellers there add making charges and a local premium on top, so a counter price will normally sit above this figure. It is one of Japan's larger markets, with a population of around 139,344.
Gold rate in Koga — all karats and weights
| Weight | 24K | 22K | 21K | 18K | 14K |
|---|---|---|---|---|---|
| 1 Gram (1 g) | ¥23,529 | ¥21,568 | ¥20,588 | ¥17,646 | ¥13,725 |
| 1 Troy Ounce (31.1035 g) | ¥731,823 | ¥670,838 | ¥640,345 | ¥548,867 | ¥426,897 |
| 1 Kilogram (1,000 g) | ¥23,528,666 | ¥21,567,944 | ¥20,587,583 | ¥17,646,500 | ¥13,725,055 |
All figures in JPY (Yen). Purity follows the karat/24 standard: 22K is 91.67% gold, 21K is 87.5%, 18K is 75%.
Last 10 days · 22K per gram in Koga
Daily closes from COMEX front-month futures — a continuous series that predates our own spot record. Futures trade slightly above spot, so read these as the day-to-day movement, not as the counter price. Converted at the current JPY exchange rate.
| Date | 22K / gram | Change | % |
|---|---|---|---|
| Fri, 21 Aug 2026 | ¥21,660 | +¥504.95 | 2.39% |
| Thu, 20 Aug 2026 | ¥21,155 | +¥126.01 | 0.60% |
| Wed, 19 Aug 2026 | ¥21,029 | +¥578.03 | 2.83% |
| Tue, 18 Aug 2026 | ¥20,451 | -¥242.64 | -1.17% |
| Mon, 17 Aug 2026 | ¥20,694 | +¥175.19 | 0.85% |
| Fri, 14 Aug 2026 | ¥20,519 | +¥78.69 | 0.38% |
| Thu, 13 Aug 2026 | ¥20,440 | -¥212.19 | -1.03% |
| Wed, 12 Aug 2026 | ¥20,652 | +¥121.32 | 0.59% |
| Tue, 11 Aug 2026 | ¥20,531 | +¥99.30 | 0.49% |
| Mon, 10 Aug 2026 | ¥20,432 | — | — |
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Gold rate in Koga — questions
What is the gold rate in Koga today?
The gold rate in Koga today is ¥21,568 per gram for 22K, and ¥23,529 per gram for 24K. These are live figures converted from international spot at the current JPY exchange rate.
What is the price of 1 gram of gold in Koga?
One gram of 24K gold costs ¥23,529 in Koga, and 22K costs ¥21,568 per gram. 18K works out at ¥17,646.
Why is 22K cheaper than 24K in Koga?
22K gold is 91.67% pure — 22 parts gold to 24 — so it contains less gold by weight than 24K, which is 99.9% pure. That is why 22K is ¥1,961 less per gram here. The alloy makes it harder, which is why jewellery is usually 22K or below.
Is the gold rate in Koga different from other cities?
The underlying metal price is identical everywhere in Japan — gold trades in one global market and converts at one exchange rate. What differs city to city is the retail markup: making charges, wastage and the jeweller's own premium. Those are set by each shop, not by the market.
How often does this rate update?
The spot price refreshes continuously through the trading day and this page reflects the latest reading, last confirmed 2 minutes ago. Exchange rates refresh alongside it.