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Two jewelry & gems tools, side-by-side. See which fits your task.
Jewelry & Gems
Reference for the seven crystal systems: cubic, tetragonal, hexagonal, and more.
Open Crystal SystemsJewelry & Gems
Evaluate diamond quality from cut, color, clarity, and carat weight.
Open Diamond 4CYour specific task is reference for the seven crystal systems: cubic, tetragonal, hexagonal, and more. Open the page, drop your input, get the result — typically under a second.
Your goal is evaluate diamond quality from cut, color, clarity, and carat weight. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Crystal Systems focuses on reference for the seven crystal systems: cubic, tetragonal, hexagonal, and more; Diamond 4C focuses on evaluate diamond quality from cut, color, clarity, and carat weight. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Crystal Systems and Diamond 4C work without signup. We only ask for an email if you decide to subscribe to a paid plan.