The first ever ring all-diamond ring has been crafted out of one enormous rough diamond and is known as the ‘world’s first diamond ring’. Traditionally a diamond ring is made with a precious metal and a diamond as the centre piece, but this unique diamond ring is made with one large diamond. The diamond ring took diamond cutters a year to construct. In total the diamond ring weights 150 carats and has been valued at $70 million update `wp_posts` set `post_content` = Approximately £44 million) The craftsmanship and the complete use of a large diamond, shows up even celebrities big diamond engagement rings, like Kim Kardardashian’s 20.5-carat emerald cut diamond engagement ring and Elizabeth Taylor’s 33.19-carat diamond ring. The ring was cut with unique laser equipment, specially purchased to ensure top quality. The diamond was recently on display in geneva.