Ruby ring

Ruby Ring is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "A valuable ring."

It has a Grand Exchange buy limit of 10,000 every four hours, a high alchemy value of 1.2k gp, and item ID 1641.

View on OSRS Wiki

Ruby Ring shows an active flip setup with a margin of +19 gp and 34,923 trades over the last 24 hours.

At the buy limit of 10,000 every four hours, max profit per cycle is about 190.0k gp — high margin with healthy liquidity.