As our goal is to continually expand the variety of gems offered to our clients, Duarte & Bastos purchases many rough gemstones from around the world. We have special interest in Rubellites, Alexandrites, Cat's Eye Chrysoberyl , Tourmalines, and Aquamarines, but if you have any other kinds of stones to offer, please contact us.
    If you are interested in selling rough stones to Duarte & Bastos, use our form
to send us an offer or call us at our office
in Brazil. We will be happy to evaluate your proposal for a possible deal.