Grum's Gold Exchange in Port Sarim buys the first for at high alchemy, so a single ring sale here may bring a few coins more than selling it on the Exchange. Grum only ever has player stock available since the personal store update. In Zanaris, Irksolsells them for 2,025 gp with a stock of 10 rings. Irksol is located in the north of the Market area, and players who have not completed Fairytale III - Battle at Orks Rift need to pay a cut diamond to enter the market, making this a rather impractical and expensive way of obtaining a ruby ring. A ruby ring may also be randomly generated by a Magpie familiar.
The ruby ring can be imbued for the price of 89,600 Mobilising Armies points, turning it into a ruby ring (i) by giving it to an officer in order to be enchanted.
A ruby ring in the basement of the west Varrockbank vaultcannot be taken with the Telekinetic Grab spell, as it is placed too far away from the gate. There is a message written on the loading screen that is as follows: The telegrab spell allows mages to reach items otherwise unreachable, many have tried to grab the ruby ring in the west varrock bank and failed.
A ruby ring is required to exchange for a pair of Swanky Boots after destroying 12 pairs of the boots.