Rap

The Rapaport Diamond Report, the diamond industry standard for the pricing of diamonds.

Proper noun

  1. The Rapaport Diamond Report, the diamond industry standard for the pricing of diamonds.
    • He makes good sense. However, I must comment on "CSO prices rough diamonds to its sightholders based on the Rap List." It does not. It doesn't use the list. - 1996, Jewelers' Circular/Keystone, volume 167, numbers 4-6,...
    • Soon after the Diamond Certificate came into being, Mr Martin Rapaport edited and published a regular weekly paper based on these official certificates. […] The Rap price is usually way off sometimes by as much as 30%...