CLEAN : Preview ahead of Sotheby's jewellery auction in Geneva

The video discusses the significance and rarity of blue diamonds, highlighting famous examples like the Blue Moon of Josephine and their high value. It explains that these diamonds are primarily sourced from the Cullinan mine in South Africa, with only a small percentage being true blue diamonds. The video also shares a historical anecdote involving Catherine the Great, illustrating the historical importance and value of jewels.

What is the significance of the Blue Moon of Josephine?

Describe the rarity of blue diamonds and their production.

What historical event involved Catherine the Great and Peter the Great?

What was the outcome of the letter written by Peter the Great?

How much were the estimated values of the necklace and net mentioned?