a ring with a chatoyant gem

The ring is round and perfectly shaped to fit around a finger. Only a small
marking can be found on the inside of the ring, a signature of the silversmith
that forged it. The top of the ring features a square, silver setting with room
for a gem.
The ring has been embedded with a tiger's eye.

It is a ring with a chatoyant gem.
It weighs a few ounces.

You identify a ring with a chatoyant gem.
It is an anti-summoning object. It is efficient against long range spells.
It weighs three ounces, and it is worth about ten lauren.
Its keywords are ring, chatoyant-ring, and chatoyant.