The ornamental design for a jewelryclasp for chain, as shown and described.
1.-2. Jewelry clasp for chain
1.1 : Top perspective
1.2 : Bottom perspective
1.3 : Top elevation
1.4 : Bottom elevation
1.5 : Left elevation
1.6 : Right elevation
1.7 : Front elevation
1.8 : Rear elevation
2.1 : Top perspective
2.2 : Bottom perspective
2.3 : Top elevation
2.4 : Bottom elevation
2.5 : Left elevation
2.6 : Right elevation
2.7 : Front elevation
2.8 : Rear elevation
The shade lines on the figures represents contour and not surface ornamentation and forms no part of the claimed design. The broken lines shown in the figures represent portions of the jewelry clasp for chain that form no part of the claimed design.