Enchanted jewels of Dwarf-Land

The tables for gems and jewelry in Monsters & Treasure yield a small chance for the random generation of very valuable items, e.g., there's a 10% chance of generating a 1,000 gp gem, then a 1 in 6 chance of "upgrading" that gem to a 5,000 gp value, then a 1 in 6 chance of upgrading a 5,000 gp gem, and so on. A string of 1s yields a gem of staggering value.

In Dwarf-Land, such items have power. If a gem of 5,000 gp or greater value or a jewelry item of the highest value is randomly generated, that item is automatically an "enchanted jewel" and the Referee consults a table of possible powers and curses.

Spectacular jewels are beautiful, obviously, but that beauty fuels avarice, and their early histories are often steeped in blood, misery, and treachery. It is thus rare for the magical effects of such baubles to be uniformly beneficial, and almost all enchanted jewels carry at least some minor baneful effect, if not an outright curse.

I'm developing a fairly short table of suggested magical effects for use when an enchanted jewel is indicated. I'm also writing up a table of names for some of the more famous or infamous known gems or items of jewelry.

Note that I'm not connecting the "name" and "effect" tables - I prefer for such matters to be matters of supposition and rumor rather than definite assignment. Legends notwithstanding, no one's really sure what the diamond-studded platinum chain known as the Tentacular Tongue of Vroonops does.

Inspiration for the tables comes from S&S stories, Earth legends about famous gems and their curses, and the reputed mythical properties of jewels as drawn from the DMG 1e and the moony suppositions of people who spell magic with a "k".

For instance, the Eye of Termagant may turn out to be a 10,000 gp diamond which serves as a Stone of Good Luck when carried by a female character, but a Jewel of Attracting Undead Attacks when carried by a male.