LBMA Good Delivery is the most widely accepted international standard for investment-grade precious metals bars. Bars meeting this specification are accepted by central banks, bullion banks, and exchanges worldwide.
Requirements
For a refiner to appear on the LBMA Good Delivery List, they must:
- Demonstrate a minimum of five years of precious metals refining experience
- Meet minimum annual production thresholds
- Pass rigorous testing of sample bars
- Undergo regular proactive monitoring
Bar Specifications
| Detail | Gold | Silver |
|---|---|---|
| **Weight** | 350–430 troy oz | 750–1,100 troy oz |
| **Minimum Purity** | 99.5% | 99.9% |
| **Required Markings** | Serial number, assay stamp, fineness, refiner mark | Same |
For Individual Investors
While most individuals do not buy 400 oz gold bars, the LBMA Good Delivery standard trickles down. Smaller bars from LBMA-accredited refiners carry the same assurance of quality.