Hi everyone 👋 I’m excited to share the Gemstone Weight Calculator with you! At Desiree Gems, I often get asked “How many carats would this gem be?” when customers only know the stone’s measurements. So I built this free tool to make it easier to estimate gemstone weight instantly — without needing a scale. It supports popular gems like sapphire, emerald, ruby, spinel, and more, automatically adjusting for specific gravity to improve accuracy. It’s handy for jewelers, collectors, or anyone curious about gemstones. This is version 1. I’d love your feedback 🙏 — what features would you find most useful next? (Ring size converter? Birthstone finder? Value estimator?) Thanks for checking it out — and happy gem hunting 💎 — Bernard / Desiree Gems

Gemstone Weight Calculator

Instantly estimate gemstone carat weight online

Instantly estimate gemstone carat weight online