TWINKLEDIAM NV • Responsible Jewellery Council

Date Joined: December 2023

To Achieve RJC Certification By: December 2025

Website: http://

Head Office Location: Antwerp, Belgium

Membership Forum: Diamonds and coloured gemstones trader, cutter and/or polisher

RJC is the global membership and standards body for responsible jewellery throughout the entire supply chain – from mine to retail. Our ‘Code of Practice’ references key development frameworks, including the Universal Declaration of Human Rights, ILO Principles and UN Global Compact and Sustainable Development Goals (SDGs).