Antiques Roadshow guest admitted she needed a strong drink after being told the value of a gem brooch left in a drawer for decades.In Sunday's repeat episode of the BBC One show filmed at Wimbledon, London, expert John Benjamin is dazzled by a huge brooch.Examining the brooch, he says: "One of the stones that I think has got one of the most vivid sense of its own significance and importance and beauty of its colour is aquamarine."The expert then says the brooch has an "absolutely massive" aquamarine."It is really very rare to come across an aquamarine of this size, this colour, and this beauty," he gushes.The owner says the ornate piece of jewellery was a present from her father-in-law.She says: "My husband's grandfather went out to Brazil.
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