A crucial change to GIA grading reports could restore confidence among the trade and consumers.
Category: Auction
One of two featured Art Deco necklaces appeared in 1974 film adaptation of The Great Gatsby.
Piece carries high estimate of over $190,000 in April sale.
Piece is top seller, bringing in $1.8 million in Hong Kong.
Over 300 timepieces will go under the hammer in Hong Kong, Geneva and New York auctions this year.
Ring has an upper estimate of $600,000 at May 11 sale.
Ring carries an $800,000 high estimate at May 4 Spring Fine Jewelry Signature sale.
Piece is estimated to fetch up to $3.2 million at April 23 sale.
A Cartier ruby ring sells for $560,000, more than eight times its high estimate.
Piece sells for $691,522 at Hong Kong Jewels auction.
Lead item is a Van Cleef & Arpels diamond ring, but six of the top 10 contain the blue gemstone.