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Jewelry & Gems
Reference guide for lapis lazuli quality, pyrite inclusions, and origin grading.
Open Lapis LazuliJewelry & Gems
Convert gemstone diameter in millimeters to approximate carat weight.
Open mm→CaratYour specific task is reference guide for lapis lazuli quality, pyrite inclusions, and origin grading. Open the page, drop your input, get the result — typically under a second.
Your goal is convert gemstone diameter in millimeters to approximate 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. Lapis Lazuli focuses on reference guide for lapis lazuli quality, pyrite inclusions, and origin grading; mm→Carat focuses on convert gemstone diameter in millimeters to approximate 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 Lapis Lazuli and mm→Carat work without signup. We only ask for an email if you decide to subscribe to a paid plan.