Sprouting from humble beginnings, SB Diamonds has grown to become an internationally renowned leader in diamond sourcing, manufacturing, and distribution.

With combined experience of over 150 years as leaders in the diamond trade, the Sianes brothers and the three generations following them have always been committed to excellence, both in the in the unparalleled quality of the diamonds they manufacture and the knowledge and service they provide their clientele. With a European eye for beauty and business acumen that has transformed the once fledgling company into an international powerhouse, the SB Diamonds team welcomes you to explore their vast collection.