How it works

How a stone moves through Ratna Trace.

Origin claims on loose stones rest on a dealer's word, and a stone that changes hands three times loses its history.

Rows of handmade earrings displayed for sale at a jewellery stall

The record

Each stone receives a provenance record at the pit, with the weight and the first buyer named, and every transfer adds a line.

  1. 1. FindA rough stone is recorded at the pit with its weight.
  2. 2. CertifyThe gem authority signs the origin line.
  3. 3. CutThe lapidary records the before and after weights.
  4. 4. SellThe buyer receives the full line history.