Diamond Men's Ring 10kt White Gold. For sale a man's ring in 10kt white gold. This tapered width band is set with twelve single cut diamonds (0.12cttw). The ring is hallmarked: KPJ; 10K. Ring size 11, is in new condition. The ring was cast with the diamonds in place with a bright polished finish. Included is an insurance appraisal of $524.00.