This is a classic, mid-century style men's signet ring crafted in solid 10K solid yellow gold with 3 diamonds. This handsome estate piece features a crisp, geometric square face with an elegant starburst/illusion setting that holds a central diamond accent.

 The shoulders are accented with clean triangular details, each inset with an additional small diamond, creating a timeless three-stone layout.

I suspect the diamonds are natural, but did not check it at a jeweler. 

Good Vintage Condition (has some bending, scratches and other signs of wear), Authentic Canadian Craftsmanship( Canadian National Mark) and a substantial 4.3 grams weight.

Please refer to the photos to see the condition.