Calculator:Crafting/Gem cutting

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This is a static calculator.
It does not take user inputs, but it does use changing prices from the Grand Exchange Market Watch. If prices appear to be outdated, purge the page by clicking here.

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[edit source]

Note: The following calculations use real-time market prices. For more information, see Grand Exchange Market Watch.
Variety of Gem Level Uncut Gem Cost Cut Gem Value XP Each Loss/Profit (Per Gem) Loss/Profit (Per XP)
Uncut opal.pngOpal.png Opal1 1 379 400 Chisel.png 15 21 1.4
Uncut jade.pngJade.png Jade1 13 2,887 3,176 Chisel.png 20 289 14.5
Uncut red topaz.pngRed topaz.png Red Topaz1 16 3,595 3,267 Chisel.png 25 -328 -13.1
Uncut sapphire.pngSapphire.png Sapphire 20 388 165 Chisel.png 50 -223 -4.5
Uncut emerald.pngEmerald.png Emerald 27 1,098 698 Chisel.png 67.5 -400 -5.9
Uncut ruby.pngRuby.png Ruby 34 1,045 381 Chisel.png 85 -664 -7.8
Uncut diamond.pngDiamond.png Diamond 43 2,316 939 Chisel.png 107.5 -1,377 -12.8
Uncut dragonstone.pngDragonstone.png Dragonstone 55 11,125 8,759 Chisel.png 137.5 -2,366 -17.2
Uncut onyx.pngOnyx.png Onyx 72 1,694,155 1,700,112 Chisel.png 167.5 5,957 35.6
Uncut hydrix.pngHydrix.png Hydrix 79 23,811,859 22,983,144 Chisel.png 197.5 -828,715 -4,196

Gem Cutting Profit Calculator with Crystal Chisel & Portable Crafter[edit source]

Variety of Gem Level Uncut Gem Cost Cut Gem Value XP Each Loss/Profit (Per Gem) Loss/Profit (Per XP) Loss/Profit (Per XP) Portable crafter
Uncut sapphire.pngSapphire.png Sapphire 20 388 165 Crystal chisel.png 50 -220 -4.4 -3.7
Uncut emerald.pngEmerald.png Emerald 27 1,098 698 Crystal chisel.png 67.5 -387 -5.7 -4.5
Uncut ruby.pngRuby.png Ruby 34 1,045 381 Crystal chisel.png 85 -657 -7.7 -6.5
Uncut diamond.pngDiamond.png Diamond 43 2,316 939 Crystal chisel.png 107.5 -1,359 -12.6 -11.1
Uncut dragonstone.pngDragonstone.png Dragonstone 55 11,125 8,759 Crystal chisel.png 137.5 -2,191 -15.9 -10.8

1 These gems have a possibility of failing to cut, 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.