The main difference between bullion gold and doré gold lies in their purity and processing stage:

 Bullion Gold

Bullion gold refers to highly pure, refined gold, usually in the form of bars or coins:

– It has a minimum purity of 99.5%, although it commonly reaches 99.99% pure gold.

– It is used for investment, reserves, and international trade.

– It comes in standardized presentations such as 400 troy ounce (12.4 kg) bars or 1 kg kilobars.

– It has its weight, purity, and manufacturer engraved for easy identification.

 Doré Gold

Doré gold is a semi-pure alloy of gold and silver produced in mines:

– It is a mixture of gold and silver in varying proportions, without a standardized purity.

– It is produced near the extraction mine as an intermediate step.

– Requires additional refining to separate and purify the metals.

– Typically weighs up to 25kg per ingot.

– Is stronger than pure gold, making it easier to transport.

In short, doré gold is an intermediate product from mines that still requires refining, while bullion gold is the refined and standardized final product used for investment and trade. The process goes from mined ore to doré gold and finally to high purity bullion gold.