The most expensive of them is the RS gold Cape of Skulls. Though it's got the same stats at the base of the Obsidian Cloak, it also has a distinct appearance that is coveted by many players. This is the reason this cape cost over $20 million in gold. There are other caps that have gold values exceeding 1 million, gold trimmed monk's robes valued of few millions, and several set pieces that be purchased for a few hundred thousands of dollars in gold.
Medium Clues are probably most common among the RuneScape community due to the fact that they come with amazing rewards and don't have demanding requirements. Of the numerous items are available inside one of the most prominent drops worth mentioning are the two Ranger Boots. The item's price is more than 30 million dollars on Grand Exchange. While medium clues do not have such high-end rewards as easy scrolls, they have more chance of Ranger Boots than Easy Casket has in cape of Skulls.
Additionally you'll also get more rewards when you open a Medium Casket than you would for an Easy one (so it is possible to expect things that include shield h3, H2, or the helm h3). In addition to The Ranger Boots with a special drop list, you will also buy OSRS gold locate Spiked Manacles that cost over 1 million. The other benefits aren't nearly as valuable like these two items.