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Clockwork
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 If prices appear to be outdated, purge the page by clicking here.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 table below lists the profit (or loss) made from cutting gems, aswell as the cost/xp of each.

Gem Cutting

Jewel

Level Cost Uncut Value Cut Profit or loss XP (Smashed) XP (Cut) Profit/loss per XP % Success Required to Break Even Profit/Loss
Opal Opal 1 131 185 54* 3.8 15 3.6* 70.810810810811
Jade Jade 13 334 551 217* 5 20 10.85* 60.617059891107
Red topaz Red topaz 16 4,366 4,970 604* 6.3 25 24.16* 87.84708249497
Sapphire Sapphire 20 970 704 -266 N/A 50 -5.32
Emerald Emerald 27 921 568 -353 N/A 67 -5.27
Ruby Ruby 34 1,736 1,082 -654 N/A 85 -7.69
Diamond Diamond 43 3,769 2,041 -1,728 N/A 107.5 -16.07
Dragonstone Dragonstone 55 14,365 11,943 -2,422 N/A 137.5 -17.61
Onyx Onyx 67 3,051,323 3,037,536 -13,787 N/A 167.5 -82.31
Zenyte Zenyte 89 13,336,023 13,943,780 607,757 N/A 200 3,038.79
  • This assumes that all gems are successfully cut, as crushed gems can only be sold to the general store in Shilo Village for 1 coin each.
  • Success rate of cutting a gem varies by gem and scales with level. See gem pages for success rates by level.