No sign-up
Free tools
Small, single-purpose tools that run in your browser. No account, nothing to install.
Engagement Ring Designer Design a ring in 3D — stone, carat, metal, setting, accents — with an indicative price that moves with every choice. Open → Diamond Size Chart Carat weight to millimetres for ten diamond shapes, with a true-to-scale preview and a full printable table. Open → Louis Vuitton Date Code Decoder Turn an LV date code into a factory country and production period — and check whether the format fits the bag. Open → Collector’s Glossary Plain-English definitions of the terms used for diamonds, rings, art, watches, designer bags and coins. Open →
Looking for explanations rather than tools? Start with the guides.