Gem & Jewelry Laboratory
Standardized carat measurements, karat alloy gold purity calculations, Troy ounce precious metal valuations, and historic UK assay hallmark decoding.
1. Input Weight & Unit
The modern metric carat is exactly defined as 200 milligrams. Gem weights are traditionally quoted to two decimal places (points), where 1 point equals 0.01 carats.
2. Calculated Conversions
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Convert food nutritional calories and physical kilojoules standard label indexes.
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Estimate compass alignment values and offset angles between magnetic north and true north.
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Convert Unix epochs (seconds/milliseconds) to human-eye standard DateTimes, and transform local dates to Epoch times.
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