Measure how efficiently a production batch converts starting gold metal into finished jewellery output. The result highlights usable output, weight loss and a normalized yield rate.
Gross yield compares finished output with the starting input. When assay or composition data is available, a separate fine-gold yield reveals whether the apparent mass yield is hiding a purity change.
Gross mass can fall because of alloy or non-gold material changes. Fine-gold yield isolates the precious-metal balance when reliable purity figures are available.
Compare batches made under similar conditions rather than treating a single result as a universal benchmark. Unexpected changes can help identify weighing, process or reconciliation issues.
It means the entered finished output weight equals the entered starting weight.
Yes, mathematically, if additional material enters the measured stream.
It can separate precious-metal recovery from changes in gross alloy mass.