Calculator:Crafting/Gem cutting

The Gem cutting calculator is a calculator using current exchange prices which shows you how much money you will lose or gain by successfully cutting one of each gem type assuming you buy and sell the gems using the grand exchange. Using high or low alchemy may affect how much you lose or gain from cutting gems. Also, buying higher than or selling lower than the current market price (such as buying at highest price or selling at lowest price) will cause you to lose more money when cutting gems.

To determine how much you will lose or gain from cutting more than one gem of the same variety, multiply the number of gems you plan on cutting by the value in the per gem column. To determine how much it will cost per level, multiply the amount of crafting XP until the next level by the value in the per XP column.

Gem Cutting Loss/Profit Calculator

Note: The following calculations use real-time market prices. For more information, see Grand Exchange Market Watch.

Image	Variety of Gem	Level	Uncut Gem Cost	Cut Gem Value	XP Each	Loss/Profit (Per Gem)	Loss/Profit (Per XP)
	Opal*	1	26	55	15	29	1.9
	Jade*	13	63	89	20	26	1.3
	Red Topaz*	16	133	165	25	32	1.3
	Sapphire	20	810	391	50	−419	−8.4
	Emerald	27	1,295	654	67.5	−641	−9.5
	Ruby	34	2,613	1,184	85	−1,429	−16.8
	Diamond	43	9,520	5,665	107.5	−3,855	−35.9
	Dragonstone	55	13,572	10,393	137.5	−3,179	−23.1
	Onyx	67	4,687,968	4,915,667	167.5	227,699	1,359.4

Note: If a gem is marked with an asterisk (*), there is a possibility of failing to cut that type of gem, causing it to shatter. If this happens, you will receive minimal experience, and you will not make any money back if you paid for the gem. It is not recommended to train using this type of gem.