The Polished Prices price screens provide up-to-date prices based on actual transactions in the wholesale polished diamond market.

Prices are multiple-sourced and supplied electronically by diamond companies in the different diamond centres.


The individual price points within the Polished Prices matrix used to create its indices are weighted using proprietary rough to polished models applied to world rough production at mine level to create its unique indices.

Market Report

The Polished Prices weekly market report provides trading updates and covers corporate events, keeping you you up to date on polished and rough trading activity in the major diamond centres.

Index Report

The weekly index report covers major movements in the main Polished Prices index, as well as the three benchmark categories: 1 carat, 0.5 carats and 0.3 carats. Each size is segmented in Fine, Commercial and Mixed quality.