Obs. A finger-ring made of two separable halves: = GEMEL 4, GIMMAL 1. Cf. the description in Dryden, Don Sebastian, V. i:
Yhose rings
a Curious Artist wrought em: With joynts so close, as not to be perceivd; Yet are they both each others Counterpart. Her part had Juan inscribd, and his had Zayda.
and in the midst, A heart divided in two halves was placd.
1604. Shaks., Oth., IV. iii. 73. Marry I would not doo such a thing for a ioynt Ring, nor any petty exhibition.
1703. Lond. Gaz., No. 3897/4. Lost or stolen, a Box, in which were 3 Rose Stone Rings, 24 Joint Rings.