🇸🇹Platinum Rate in São Tomé Today
The platinum rate in São Tomé today is STN 954.28 per gram for 18K, based on an international spot price of $1,887.00 per troy ounce. That is up STN 28.47 from the previous close. This is the international spot price converted into STN for São Tomé. 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 Sao Tome and Principe's larger markets, with a population of around 53,300.
Platinum rate in São Tomé — all karats and weights
| Weight | 24K | 22K | 21K | 18K | 14K |
|---|---|---|---|---|---|
| 1 Gram (1 g) | STN 1,272 | STN 1,166 | STN 1,113 | STN 954.28 | STN 742.22 |
| 1 Troy Ounce (31.1035 g) | STN 39,575 | STN 36,277 | STN 34,628 | STN 29,682 | STN 23,086 |
| 1 Kilogram (1,000 g) | STN 1,272,377 | STN 1,166,345 | STN 1,113,330 | STN 954,282 | STN 742,220 |
All figures in STN (Dobra). Purity follows the karat/24 standard: 22K is 91.67% gold, 21K is 87.5%, 18K is 75%.
Last 10 days · 18K per gram in São Tomé
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 STN exchange rate.
| Date | 18K / gram | Change | % |
|---|---|---|---|
| Fri, 21 Aug 2026 | STN 954.43 | +STN 28.47 | 3.07% |
| Thu, 20 Aug 2026 | STN 925.96 | +STN 14.36 | 1.58% |
| Wed, 19 Aug 2026 | STN 911.60 | +STN 38.54 | 4.41% |
| Tue, 18 Aug 2026 | STN 873.06 | -STN 27.87 | -3.09% |
| Mon, 17 Aug 2026 | STN 900.93 | +STN 15.93 | 1.80% |
| Fri, 14 Aug 2026 | STN 885.00 | +STN 12.54 | 1.44% |
| Thu, 13 Aug 2026 | STN 872.46 | -STN 18.15 | -2.04% |
| Wed, 12 Aug 2026 | STN 890.61 | +STN 7.73 | 0.88% |
| Tue, 11 Aug 2026 | STN 882.88 | +STN 0.6600 | 0.07% |
| Mon, 10 Aug 2026 | STN 882.22 | — | — |
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Platinum rate in São Tomé — questions
What is the platinum rate in São Tomé today?
The platinum rate in São Tomé today is STN 954.28 per gram for 18K, and STN 1,272 per gram for 24K. These are live figures converted from international spot at the current STN exchange rate.
What is the price of 1 gram of gold in São Tomé?
One gram of 24K platinum costs STN 1,272 in São Tomé, and 22K costs STN 1,166 per gram. 18K works out at STN 954.28.
Why is 22K cheaper than 24K in São Tomé?
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 STN 106.03 less per gram here. The alloy makes it harder, which is why jewellery is usually 22K or below.
Is the gold rate in São Tomé different from other cities?
The underlying metal price is identical everywhere in Sao Tome and Principe — 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 9 minutes ago. Exchange rates refresh alongside it.