Australian Diamond Trading Corporation is an Australian owned, second generation family business. Established in 1986, ADTC has carved its name as Australia’s leading diamond supplier, providing solutions for clients nation-wide.
Being fully independent, we are able to source the highest quality diamonds at the best price from different sources. With over 30 years of experience, our long-standing relationship with suppliers from all over the world allows us to offer our clients a large selection of stock that is on-hand and readily accessible to you.
ADTC is an Authorised Argyle Partner.
At ADTC, our mission is to make lives easier for our clients. We do the hard sourcing for you, so that you can manage your retail business with confidence.
Our commitment is to uphold the highest standard of quality in our selection of diamonds with honest gradings, so our clients “don’t even need to check it”
ADTC is renowned for having the largest range of premium white and coloured diamonds in Australia, in both round brilliant and fancy cut diamonds. All of our stones are hand selected and colour graded in-house, accompanied by GIA, HRD and IGI certification. All parcels are sorted and sieved in-house, and calibrated at 0.05mm.
ADTC also offers a wide range of jewellery and semi mounts for your convenience. Designed in Australia and made in Thailand, we uphold the highest standard in quality control.
ADTC invites you to experience the highest standard in customer service and support, through consistent supply and overnight delivery to ensure that your business needs are met. The growth of your business is our priority.