Men may wear a signet ring on any finger that they desire or personally prefer, including the index finger, ring finger, or pinky. This square plain signet ring may be purchased as is or it may be engraved with your choice of hand, laser, or computer engraving with up to three initials. This square ring with platinum and gold options has a gram weight of about 24.9 grams in platinum 950. Signet rings are traditional pieces of jewelry that convey prestige and power. This 14kt yellow gold ring's face measures 18.7 by 16.3mm and has a solid back.