Paste jewelry was popularized by the "jeweler to the king", George Strass, in the 1700s. The paste"gemstones" are made from leaded glass and faceted to resemble precious gems. Black dot paste has a small black dot "painted" on the bottom underside of the stone to mimic the open culet of early diamond cuts, which often look quite dark or black. Black dot paste is considered to be a hallmark of very fine quality paste. Wearing paste jewelry was a safeguard against robbery in its day, and many women took to wearing paste jewelry during their travels. This fanciful 15K late Georgian, paste cluster ring is a size 7 7/8.