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Everything you need to know about lab-grown and natural diamonds, certificates, jewellery making and buying from us.

About lab-grown diamondsHow they are grown, certification, colour, clarity, cut, and the HPHT and CVD growth methods.About natural diamondsWhy buy a natural diamond from us, how to choose, delivery and price trends.Natural vs lab-grown diamondsSpecifications and prices compared point by point.A natural diamond is not an investmentThe truth about ‘investment diamonds’.IGI certificate verificationHow to verify your stone online.Frequently asked questionsProduction, sizes, delivery, returns, engraving.Enquire about a lab-grown diamondNo-obligation enquiry for a stone beyond our listed range.Jewellery on instalmentsFinance options.InspirationCompleted commissions and ideas.BlogArticles on diamonds and jewellery.About usULTIMATE-GEMS and the Sirius brand.WholesaleTrade partnerships for goldsmiths and jewellers.ContactWhatsApp, e-mail, enquiries.