Vintage Daisy Ring size 51 FR -zircons- Silver - Jewelry Model. Ring size 51 FR, which is approximately 16.25 mm. Its weight is 3.4 g. This ring has been tested with the appropriate acid. It is made of solid silver, and a remnant of a hallmark can be found inside the band. The box is not included in the lot. Condition: Used: Item has been worn. ...Used: Item has been worn. any potential imperfections. Dominant stone: Zircon Brand: Vintage Antique Size: 51 Dominant color: Silver Material: Stone Metal: Sterling Silver Ring shape: Daisy.