Diamond Cutters & Importers...Your Prime Source for Diamonds established in 1919.

Joseph Blank has an extensive large stone inventory ranging from 20 pts. through 3 carats. Most of our better quality diamonds are certified from highly recognized gem labs (i.e., GIA, AGS, EGL, and IGI). Our specialty is calibrating sizes and diamond bagging.


Material suppliers will provide you with the raw materials and components of your end product.