Abstract: The first portion (P1) of the band (1) of the ring (10) has the first ditch portion (2) into which the first stone (4) that is a diamond is fitted. On the other hand, the second portion (P2), which faces the first portion (P1), has the second ditch portion (3) into which the second stone (5) that is a blue sapphire or the like is fitted. In the first usage pattern of the ring (10), the ring (10) is worn so that the first stone (4) is on the back of the hand. In this condition, the second stone (5) on the palm side does not come in contact with any part of the hand. The second usage pattern where the second stone (5) is on the back of the hand is realized by rotating the band 1 approximately half-turn. Thus, the single ring can be used in two different ways without making the wearer feel a sense of incongruity.