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Presidium, a manufacturer of diamond and gemstone testing devices, is seeking industry reviewers for its ASSURE-certified Synthetic Diamond Screener (SDS II).
Renowned luxury brands such as Rolex and Patek Philippe are outperforming among investments in rare vintage watches, with provenance giving further impetus to value.
The London Jewellery Showroom’s partnership with The Sunday Times saw more than 100 subscribers buy tickets to shop at a late-night private event on Tuesday evening (February 19).