Thank you for purchasing TheGem WordPress theme!

Please refer to Envato's license policy for all questions concerning the purchased license: https://themeforest.net/licenses/terms/regular

To keep it short: one regular license allows you to use TheGem on one localhost, one development and one final production website. Please check this article about naming rules for localhost and development environments: https://codex-themes.com/thegem/documentation/#license-terms 

You can manage your licenses and activations in TheGem license manager: https://codex-themes.com/thegem/license_manager/