This design was created by Albrect Durer, a German artist from the 1500's, and was his personal signature. 

Monogram: AD

Accents/Accessories: Loose bail; Smooth edging and background; Mirror Finish; Raised monogram

Size: 34 x 23 millimeters (1.34 x 0.91 inches)

Weight: 5 grams (0.18 ounces)

Sterling Silver Chain as shown: 16 inches - $25.00 or 18 inches - $35.00