Gemcutter

A gem cutter is a device that will cut a gem into a new design following a player-chosen pattern. Specifically, the prefix of the gem will be changed to a <pattern>-<descriptor> <gem> (where <descriptor> can be "-shaped," "-etched," etc.). These items are sold from merchant shops or festivals, sometimes with unique patterns. Players can PUT a gem and pattern in the device, LOOK inside to see the current settings, and TURN the device to cut the gem.

Analyze

You analyze your <gemcutter> sense that the item is largely free from merchant alteration restrictions.

The creator has also provided the following information:
This item may be altered under the following conditions: the gemcutter's form must be something humanoid with a back, a head, and an appendage that can hold something, like a hand, a claw, or paw.  It must be made of metal.

The gemcutter can have both a long and a show.

Only certain patterns made specifically for gemcutters can be used with this item.

Try as you might, you cannot get a good sense of whether or not the <gemcutter>'s pockets could get any deeper, but you can tell that the <gemcutter> is as light as it can get