How does gold pricing work in Singapore?
A Singapore SGD gold reference can be derived from an international gold price quoted in US dollars, converted through the USD/SGD exchange rate and converted from troy ounces into grams. Retail bullion, jewellery and buy-back prices can then differ because of purity, premiums, spreads and other product-specific costs.
The Two Key Market Drivers
The calculation
International gold markets commonly quote gold in US dollars per troy ounce. One troy ounce is approximately 31.1034768 grams.
To estimate the Singapore reference price per gram:
- Start with the international gold price per troy ounce.
- Convert the price into Singapore dollars.
- Divide by 31.1034768.
- Adjust for the purity of the gold.
Purity convention: Gold.com.sg uses the exact stamped fineness for purity adjustments — 916 is calculated as 0.916, 585 as 0.585 — not the theoretical karat fractions (22/24, 14/24). A page labelled "916" and a calculator set to "916" therefore produce the same value.
USD/oz × USD→SGD FX ÷ 31.1034768 = SGD/gram
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Why does the Singapore gold price move?
Before product-level pricing enters the picture, two market variables matter most:
- International gold: If gold rises in USD, the SGD reference will normally rise all else equal.
- USD/SGD: Currency can amplify or offset that movement.
This is why a Singapore-dollar gold chart may not move exactly like a US-dollar gold chart. If international gold is unchanged but SGD weakens against USD, the same USD gold price converts into more Singapore dollars.
Why doesn't a gold bar cost exactly that amount?
Because the derived value above is the reference metal layer.
A physical product can then add:
- reference value
- fabrication
- assay/packaging
- product premium
- dealer margin
The result is a retail premium above the underlying gold reference. This is why two dealers can quote different prices for what appears to be the same amount of gold.
Why bar size matters
Small bars generally cost more per gram than larger bars. A one-gram bar requires manufacturing, packaging and handling just as a larger bar does. Those costs are spread across very little gold, which pushes up the premium per gram.
Move into larger sizes and that premium will often fall. See our guide on the best gold bar size to buy.
Why is jewellery different again?
Jewellery may include:
- different purity
- workmanship
- design
- stones
- retailer margin
- GST
So: spot/reference price ≠ jewellery retail price.
Why can a buy-back offer be lower?
A buyer is quoting the other direction of the transaction.
Its price can reflect:
- purity verification
- product recognition
- refining/resale
- spread
- operating margin
So: reference price ≠ guaranteed buy-back price.
The buy-back price matters too. Suppose two dealers sell the same bar at almost identical prices. One might offer a materially better price when you eventually sell it back. That difference is part of the real cost of owning physical gold.
