Gold price methodology
The dashboard is an indicative reference, built from validated collector data and rendered from a local server snapshot. It separates spot calculations from published currency quotations so unlike data is not presented as the same thing.
Gold calculation
The collector supplies a validated XAU/USD spot reference in US dollars per troy ounce. One troy ounce is 31.1034768 grams.
USD gold per gram = XAU/USD per troy ounce ÷ 31.1034768 Local gold per gram = USD gold per gram × published local-currency units per USDIndonesia’s indicative gold-per-gram card uses the published Bank Indonesia JISDOR USD/IDR reference when it passes the collector’s checks. Each other country card uses its displayed USD/local-currency reference. These are mathematical spot conversions; they do not include dealer premiums, fabrication, tax, logistics, spreads or settlement terms.
Why BI and BCA are separate
BI JISDOR is the official USD/IDR reference used for the Indonesia spot conversion. Published BCA e-Rate BUY and SELL values are shown as operational bank references and are not averaged into a midpoint or substituted into the Indonesia gold calculation.
The dashboard preserves the published direction and labels BUY and SELL separately. A bank quote can therefore move differently from the official benchmark.
Country-card IDR row
The final row follows a strict priority and never invents a USD cross-rate:
- BCA BUY/SELL CODE when a validated published bank pair exists.
- BI DIRECT CODE when a validated direct Bank Indonesia reference exists.
- DIRECT REFERENCE CODE with “--” when neither direct source is available.
China: CNY versus CNH
China’s gold-per-gram and “1 USD” values remain CNY, the onshore renminbi reference used for that card’s spot conversion. When the BCA row is available, it is explicitly labeled CNH, the offshore Chinese yuan quoted by the bank.
The tooltip repeats this distinction. CNY and CNH are not silently treated as interchangeable.
Snapshot, freshness and sources
An automated server-side collector contacts configured market and authority sources, validates structure, timestamps and reasonable numeric ranges, then publishes a local JSON snapshot. A normal page render reads that local file only; it does not call an external provider.
The visible snapshot timestamp and status chips show whether the current display is verified, cached, secondary, partial or waiting. Source descriptions and relevant timestamps are exposed in the dashboard’s labels and tooltips. JavaScript checks the same local publication for newer values and animates actual changes.
Important limits
- Provider delays, closed markets, network conditions and validation rules can make a value cached, partial or temporarily unavailable.
- Displayed forecasts or trend descriptions are model outputs based on available data, not predictions of future performance.
- A final commercial quotation depends on product specification, purity, quantity, premium, tax, shipping, compliance review and agreed settlement terms.