Rare Oval Gems

These collection items can only be obtained from Buried Treasure. If completed with 3 other collections (Rare Trilliant Gems, Treasure Hunter Masks, Antique Weapons), you can complete the top-level collection: Master Treasure Hunter.

Treasure Hunting
 * A rare red oval gem
 * A rare green oval gem
 * A rare blue oval gem (possibly the rare piece of the set)
 * A rare yellow oval gem

Reward: A medium amount of XP.