18K gold price in Sydney today
On November 5, 2026, 18K gold in Sydney costs 142.10 AUD per gram and 4,419.78 AUD per troy ounce, based on the live international spot price.
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18K gold price in AUD by weight
| Weight | Spot value | Buy (bid) | Sell (ask) |
|---|---|---|---|
| 1 g | 142.10 | 139.26 | 144.94 |
| 5 g | 710.50 | 696.29 | 724.71 |
| 8 g | 1,136.79 | 1,114.06 | 1,159.53 |
| 10 g | 1,420.99 | 1,392.57 | 1,449.41 |
| Troy ounce | 4,419.78 | 4,331.39 | 4,508.18 |
| Tola | 1,657.42 | 1,624.27 | 1,690.57 |
| Kilogram | 142,099 | 139,257 | 144,941 |
What is 18K gold?
18K gold is 75% pure (hallmark 750). It is the usual fine-jewelry standard in Europe and Latin America and the base for most white and rose gold.
The 18K price is calculated as the 24K price multiplied by 0.75. Today that gives 189.47 × 0.75 = 142.10 AUD per gram.
Quick calculator
AUD exchange rate
| 1 USD | 1.4276 AUD |
|---|---|
| 1 EUR | 1.6043 AUD |
| 1 GBP | 1.9232 AUD |
Gold spot price trend (USD/oz)
How the gold price in Sydney is calculated
We take the live spot price of 4,127.80 USD per troy ounce, divide it by 31.1035 to get 132.71 USD per gram of pure gold, and multiply by today’s exchange rate of 1.4276 AUD per dollar. That gives 189.47 AUD per gram for 24K. Lower karats are priced by their gold content.
Australia is a top-three gold producer; the Perth Mint sells bullion in AUD per ounce. Investment-grade gold is GST-free.
Gold in Sydney is priced in the same currency as the rest of Australia; differences between shops come from margins and making charges, not from the metal price.
Before you sell, weigh your pieces on a jeweler’s scale, check the hallmark and compare at least two quotes. Read our guide to selling gold.
More gold prices in Sydney
24K gold22K gold21K gold18K gold14K gold10K gold9K gold Per gramPer troy ouncePer tolaPer kilogram
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