Understanding the Market for Diamonds with Mollie Burns Keith

On 7 December 2022, The Girardi Diamond Earrings, the most famous earrings of 2022, will be auctioned on Invaluable by John Moran Auctioneers. The court-ordered sale of these diamonds has proved highly contentious, with the estimate set at a lower price than Girardi is thought to have purchased them for in the 1990s when he bought them for his now estranged wife, the Real Wives of Beverly Hills star, Erika Jayne Girardi. Why is this? And what are the factors that determine the sale price of a diamond?

We spoke to Mollie Burns Keith, Jewelry Director at John Moran Auctioneers, to understand how factors such as provenance and the economic climate can impact the price of a diamond. Watch on for our short video series to learn more:

The Girardi Earrings at Auction

On Valuing a Diamond

“Market Price” or “Retail Price”: What’s the Difference?

On Buying Diamonds as an Investment