Duarte & Bastos works with a wide variety of precious semi-precious stones, such as the Cat's Eye Chrysoberyl, Aquamarine, Tourmaline, Topaz, Rubellite, Quartz, Rhodolite, Amethyst, Fluorite, Alexandrite, Emerald, and Imperial Topaz. 

ln our lapidary, the gems are formed, cut, and polished according to world-class standards, thus ensuring that we obtain products of excellent quality and great beauty .
    As we rely on the finest professionals in the region, Duarte & Bastos also maintains rigid quality control, which continues from the moment
of extraction to the classification of polished stones. Each stone, after being processed, undergoes a thorough examination to observe the facets alignments, caliber, and the possible existence of scratches and scars. This way, we guarantee that only perfect stones will reach our clients.
    In our products pages, you will learn more about the large range
of stones offered by Duarte & Bastos and you will discover why our company is considered one of the most serious and reliable in the sector.
     In case you need further information, send us an e-mail.
We will be pleased to answer all your questions as soon as possible.