18K WHITE GOLD 0.10CT DIAMOND BRACELETEst. $320-$640
18K MULTI-TONE GOLD & DIAMOND NECKLACEEst. $1,600-$3,200
Tiffany & Co. Double Heart Pendant 18k Rose Gold Sterling Silver Please Return NecklaceEst. $1,547-$2,011
ANTIQUE 18K YELLOW GOLD AND SILVER 2.50CT DIAMOND AND EMERALD PENDANTEst. $4,500-$9,000
SERPENTI 18K WHITE GOLD 0.41CT DIAMOND AND MOTHER OF PEARL RINGEst. $4,000-$8,000
Second-hand 18K Gold Diamond Tennis NecklaceEst. £90,000-£180,000
Jaipur Collection 18k Gold Pendant Necklace by Marco Bicego with Blue GemstoneEst. $3,432-$4,461
Sapphire and Diamond Pendant Necklace in 18K Rose GoldEst. $702-$912
Swiss Modern Brooch in 18k Yellow and White Gold with PearlsEst. $5,330-$6,929
Harbor Diamonds 18K White Gold Pearl and Diamond Ring 0.99 CaratEst. $5,759-$7,486
David Webb Platinum 18K Yellow Gold Enamel Diamond Clip-On EarringsEst. $27,690-$35,997
18K YELLOW GOLD 2.60CT DIAMOND RINGEst. $2,800-$5,600
18K WHITE GOLD 3.10CT DIAMOND RINGEst. $4,200-$8,400
Zellige Pendant Necklace by Paloma Picasso for Tiffany 18k Gold with Silk CordEst. $3,419-$4,444
Tiffany & Co. Schlumberger 18k Yellow Gold Blue Enamel EarringsEst. $19,981-$25,975
Tennis Bracelet with Diamonds and Sapphires in 18k Multi Tone Gold Bar LinksEst. $8,424-$10,951
Corum, 18K Yellow Gold 'Coin' WatchEst. $2,000-$3,000
18k White Gold Bvlgari Serpenti Diamond BraceletEst. $48,000-$96,000
Italian 18K Yellow Gold Ruby Ring by Visconti & Baldi Size 6Est. $5,330-$6,929
18K WHITE GOLD 1.20CT DIAMOND RINGEst. $3,000-$6,000
18K YELLOW GOLD 2.80CT EMERALD RINGEst. $2,600-$5,200
18K WHITE GOLD 1.40CT DIAMOND RINGEst. $1,500-$3,000
18K YELLOW GOLD 1.0CT DIAMOND, RUBY, AND PEARL CLIP-ON EARRINGSEst. $4,500-$9,000
18k Yellow Gold Religious Pendant NecklaceEst. $500-$700