Piaget Rose Pink Opal Pink Tourmaline Pearls Diamonds 18K Gold NecklaceDIAMOND MEXICAN OPAL GOLD EARRINGS 18K WHITE PEAR SHAPE DANGLE STYLEEst. $6,807-$7,608
KARIN TREMONTI ETRUSCAN 18K YELLOW GOLD AUSTRALIAN BLACK OPAL & DIAMOND RINGEst. $6,791-$7,590
ANTIQUE ART DECO PLATINUM & 18K YELLOW GOLD AUSTRALIAN FIRE OPAL PIN BROOCHEst. $4,581-$5,120
Tiffany & Co. Vintage 18k Gold Opal Mother of Pearl Pansy Clip-On EarringsCocktail Ring in 18k White Gold with Cabochon Opal and Diamond Leaf MotifEst. $2,846-$3,201
Opal and Diamond Ring in 18K Yellow Gold with 48.36 Carat Center Stone18K Yellow Gold 3.50ct Diamond, Opal, Emerald and Sapphire Flower Brooch18K Yellow Gold Bracelet 2.3ct Diamonds, Gemstones and OpalsEst. $17,000-$18,000
18K Yellow Gold Large Butterfly Brooch with Diamonds, Opals and Ruby Eyes Signed Art Deco18K Yellow Gold Large Butterfly Brooch with Diamonds, Opals and Ruby Eyes Signed Art DecoEst. $13,000-$14,000
Vintage 18k Yellow Gold Brooch with Opal and Ruby Floral Design18k Yellow Gold Bracelet with Fire Opal and Diamond Marquise Links by KabanaBlack Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 Ct4.77 CARAT OPAL AND 0.59 CARAT H-VS2 18K YELLOW GOLD GEMS STONE RINGEst. $7,999-$8,941
VTG MODERNIST BRUTALIST 18K YELLOW GOLD AUSTRALIAN BLACK OPAL DIAMOND RING 28.7GEst. $7,650-$8,550
Australian Opal Diamond Paraiba Tourmaline Peacock Pendant in 18k Yellow GoldChaumet Attrape Moi Bee Pink Opal Diamond 18k Rose Gold Stud Earrings InsectEst. $3,550-$4,275
DESIGNER TAJ 18K YELLOW GOLD 3.19TCW AUSTRALIAN FIRE OPAL & DIAMOND PIN BROOCHEst. $5,091-$5,690
VINTAGE 22K / 18K YELLOW GOLD PENDANT WITH NATURAL OPAL AND DIAMONDS ( 12.7G )Est. $4,759-$5,319
Victorian 18k Gold Fancy Bracelet with 18.00ct Diamonds and Fire Opals18K Yellow Gold 12.00ct Amethyst 0.20ct Diamond & Marquise Cut Opal RingEst. $7,000-$8,000
18k Yellow Gold Boulder Opal Diamond Pendant Necklace with Rope ChainIkuno Kanazawa AK Collection Dragonfly Opal Multistone Diamond 18k Gold BroochEst. $3,775-$4,550
