Richard Sipe, Sr.; North Carolina, USA; March 19, 2005.
The largest carved sapphire is a multi-coloured (blue, gold, grey) polished rock that weighs 80,500 carats (16.1 kg, 35.49 lb). The sapphire was displayed during the annual Unifour Gem & Mineral & Jewellery Show at the Hickory Metro Convention, North Carolina, USA on March 19, 2005.
Source: Guinness World Records 2007
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