Item: Vintage Art Deco 10K Gold Initials MD Sapphire Blue Spinel Signet Ring. This is stamped 10K gold (white and yellow). Initials are MD. The stone is testing as Spinel. The ring box is not included in the sale of the ring.
 
Measurements: Size 5. It weighs 2.32 grams.
 
Condition: Vintage, previously owned. There are only very minor signs of age/use/patina.