Anna Zonneveld, an employee of Christie's Auction House wears the Beauharnais sapphire and diamond tiara and accompanying earrings during a viewing in Amsterdam, Netherlands, Wednesday, April 7, 2021. The tiara and other jewelry studded with diamonds and sapphires were in Amsterdam ahead of their auction next month in Geneva. The Beauharnais jewels once belonged to Napoleon Bonaparte's adopted daughter, Stephanie de Beauharnais, Grand Duchess of Baden. (AP Photo/Peter Dejong)

The Beauharnais sapphire and diamond tiara is seen during a viewing at Christie's auction house in Amsterdam, Netherlands, Wednesday, April 7, 2021. The tiara and it's accompanying ring and earrings studded with diamonds and sapphires were in Amsterdam ahead of their auction next month in Geneva. The Beauharnais jewels once belonged to Napoleon Bonaparte's adopted daughter, Stephanie de Beauharnais, Grand Duchess of Baden. (AP Photo/Peter Dejong)

The Beauharnais sapphire and diamond tiara is seen during a viewing at Christie's auction house in Amsterdam, Netherlands, Wednesday, April 7, 2021. The tiara and it's accompanying ring and earrings studded with diamonds and sapphires were in Amsterdam ahead of their auction next month in Geneva. The Beauharnais jewels once belonged to Napoleon Bonaparte's adopted daughter, Stephanie de Beauharnais, Grand Duchess of Baden. (AP Photo/Peter Dejong)

The Beauharnais sapphire and diamond ring is seen during a viewing at Christie's auction house in Amsterdam, Netherlands, Wednesday, April 7, 2021. The Beauharnais tiara and it's accompanying ring and earrings studded with diamonds and sapphires were in Amsterdam ahead of their auction next month in Geneva, the jewels once belonged to Napoleon Bonaparte's adopted daughter, Stephanie de Beauharnais, Grand Duchess of Baden. (AP Photo/Peter Dejong)

The Beauharnais sapphire and diamond earrings are seen during a viewing at Christie's auction house in Amsterdam, Netherlands, Wednesday, April 7, 2021. The Beauharnais tiara and it's accompanying ring and earrings studded with diamonds and sapphires were in Amsterdam ahead of their auction next month in Geneva, the jewels once belonged to Napoleon Bonaparte's adopted daughter, Stephanie de Beauharnais, Grand Duchess of Baden. (AP Photo/Peter Dejong)