Metals knowledge

Resources

Clear guides to units, formulas and market data so you can use metal-price information with greater confidence.

Latest guides

Gold purity & jewelry

Compare the gold content, durability, colour and common fineness marks of 24K, 18K and 14K gold.

Price charts

Read open, high, low and close prices, and understand candle bodies, wicks and timeframes.

Gold price tables

Choose the correct column and understand the buy–sell spread shown in gold price tables.

Gold units

Convert lượng, cây, chỉ, grams and troy ounces with quick reference tables and formulas.

Units & conversion

Understand USD per troy ounce and convert it to VND per gram and per lượng using the USD/VND rate.