Item: Vintage Men's 10K Gold Black Onyx Diamond Signet Ring. This is stamped 10K Gold. The diamonds were tested using a Presidium Gemstone tester. The ring box is not included in the sale of the ring. 
 
Measurements: Size 8.75. It weighs 5.59 grams.
 
Condition: Vintage, previously owned. There is no damage to note. There may be only very minor signs of age/use/patina.