🇮🇩Platinum Rate in Kotamobagu Today
The platinum rate in Kotamobagu today is Rp937,434 per gram for 21K, based on an international spot price of $1,887.00 per troy ounce. That is up Rp27,969 from the previous close. This is the international spot price converted into IDR for Kotamobagu. 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 Indonesia's larger markets, with a population of around 121,756.
Platinum rate in Kotamobagu — all karats and weights
| Weight | 24K | 22K | 21K | 18K | 14K |
|---|---|---|---|---|---|
| 1 Gram (1 g) | Rp1,071,353 | Rp982,073 | Rp937,434 | Rp803,515 | Rp624,956 |
| 1 Troy Ounce (31.1035 g) | Rp33,322,800 | Rp30,545,900 | Rp29,157,450 | Rp24,992,100 | Rp19,438,300 |
| 1 Kilogram (1,000 g) | Rp1,071,352,884 | Rp982,073,477 | Rp937,433,774 | Rp803,514,663 | Rp624,955,849 |
All figures in IDR (Rupiah). Purity follows the karat/24 standard: 22K is 91.67% gold, 21K is 87.5%, 18K is 75%.
Last 10 days · 21K per gram in Kotamobagu
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 IDR exchange rate.
| Date | 21K / gram | Change | % |
|---|---|---|---|
| Fri, 21 Aug 2026 | Rp937,583 | +Rp27,969 | 3.07% |
| Thu, 20 Aug 2026 | Rp909,614 | +Rp14,109 | 1.58% |
| Wed, 19 Aug 2026 | Rp895,505 | +Rp37,855 | 4.41% |
| Tue, 18 Aug 2026 | Rp857,650 | -Rp27,373 | -3.09% |
| Mon, 17 Aug 2026 | Rp885,023 | +Rp15,649 | 1.80% |
| Fri, 14 Aug 2026 | Rp869,374 | +Rp12,320 | 1.44% |
| Thu, 13 Aug 2026 | Rp857,054 | -Rp17,835 | -2.04% |
| Wed, 12 Aug 2026 | Rp874,889 | +Rp7,601 | 0.88% |
| Tue, 11 Aug 2026 | Rp867,288 | +Rp645.82 | 0.07% |
| Mon, 10 Aug 2026 | Rp866,642 | — | — |
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Platinum rate in Kotamobagu — questions
What is the platinum rate in Kotamobagu today?
The platinum rate in Kotamobagu today is Rp937,434 per gram for 21K, and Rp1,071,353 per gram for 24K. These are live figures converted from international spot at the current IDR exchange rate.
What is the price of 1 gram of gold in Kotamobagu?
One gram of 24K platinum costs Rp1,071,353 in Kotamobagu, and 22K costs Rp982,073 per gram. 18K works out at Rp803,515.
Why is 22K cheaper than 24K in Kotamobagu?
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 Rp89,279 less per gram here. The alloy makes it harder, which is why jewellery is usually 22K or below.
Is the gold rate in Kotamobagu different from other cities?
The underlying metal price is identical everywhere in Indonesia — 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.