Early 20th Century old cut diamond coronet cluster ring.

This piece is in excellent condition.

Also sometimes referred to as 'old European cuts', old cut diamonds are characterised by a symmetrical rounded outline, and a deep crown and pavilion (the top and bottom sections of a brilliant cut stone when viewed in profile). Though they existed as early as the seventeenth century, they did not reach the height of their popularity until the late nineteenth century.

This was largely due to two men in the United States, Henry D. Morse and Charles M. Field. In 1874 they patented a steam driven bruting machine--bruting being the term for the process by which the outline of a diamond is fashioned during the cutting process. Morse was a diamond cutter, and was the first to utilize this invention to create rounded symmetrical stones with newfound relative ease.