Yet again, Graff stuns the world with a brand new creation, the Hallucination ladies watch. It will be unveiled at the Basel watch and jewellery fair today. The world renowned London based jewellery firm says the timepiece is covered in a kaleidoscope of 110 carats of rare fancy coloured diamonds and 'estimated to be the most valuable watch ever created. The company asserts that their team of master craftsmen worked on the piece for a thousands of hours to perfect the design which came directly from Laurence Graff, Chairman of Graff Diamonds. Monroe Yorke Diamonds is the go-to diamond retailer for stunning diamond wedding jewellery, and exquisite loose diamonds.