Argyle Diamond Investments is an independent diamond investment firm who offer our clients an end-to-end solution — from buying diamonds and storing to managing investment collections and re-selling. Argyle Diamond Investments is in direct partnership with one of the largest authorized Argyle partners in the world, acquiring Pink Diamond allocations 4 times a year, as well as the very rare Mini Tender and Tender diamonds. This way we can always match our clients’ specific requirements at “guaranteed lowest prices”.