Forum Thread
Gem Evaluation
Forum-Index → Help → Answered → Gem EvaluationAnother way to do so is check the value of a gem at Market Insider/Stonks. Then multiply by the number of that gem in your bag.
Or: you could note down the value of your bag, from the bag value page. Then, send all of your gems in a gift to yourself. Go back to the bag value page, and see how much it has decreased by. (Original range - new range). That range is the value of all your gems.