A Gemcutter's Prism (often abbreviated GCP) is a currency item that can be used to improve the quality of a gem. Each Gemcutter's Prism will always raise the quality by 1%.
A Gemcutter's Prism may be vendored with a level 20 support gem to produce a level 1 version of that support gem with 20% quality. Leveling gems in the alternative weapon set is generally considered a cost-efficient method of obtaining 20% quality support gems if the player does not have the means to obtain a large number of Gemcutter's Prisms.
Gemcutter's Prisms may be acquired from vendors by selling a single 20% quality gem, or multiple gems with a total quality of 40% or more.
Obtaining many Gemcutter's Prisms by vendoring multiple quality gems
Item acquisition
Gemcutter's Prism can drop anywhere.
Recipes
Gemcutter's Prism can be created from the following recipes:
Amount
Part
Description
Meta
7
The UnionThe Union710x Gemcutter's PrismOn the 21st of Eterni, two become one, their light outshines the setting sun.
10x Gemcutter's Prism
M
3
The GemcutterThe Gemcutter3Gemcutter's PrismIn the hands of a master craftsman, a worthless pebble can adorn the crown of a king.
Added two new currency items with temporary art/names. They upgrade the quality on Flasks and Skill Gems respectively. (The latter was Gemcutter's Prism)