Tools for the connoisseur
Seven small instruments for people who like to look closely: convert a ring size, see a diamond at true scale, read a hallmark, test your knowledge.
- Ring Size ConverterConvert UK, US, EU and Swiss ring sizes and measure a ring at true size on your screen.Open
- Diamond 4C StudioSee how carat, colour, clarity and cut change a diamond, with true to scale size.Open
- Gold Content CalculatorWork out the fine gold in a piece from its weight and karat or hallmark.Open
- Hallmark DecoderBuild and read a British hallmark: sponsor, fineness, assay office and date letter.Open
- Watch Style FinderFive questions to the watch style that suits the way you live.Open
- Auction Price CalculatorFrom hammer price to total cost, or from budget to your highest bid.Open
- Royal Jewels QuizTen questions drawn from our articles. How well do you know royal splendour?Open
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