SSilver Boulder Dublet Opal Collar Necklace

with removable central ornament/pendant, on hammered collar; opal measuring 15 x 10mm, (with cracking); with makers mark from the Golden Bear, Vail, Co.; gross weight approximately: 39 gr; length adju

A boulder opal necklace. Comprising thirty-one irregular-shape boulder opal beads, measuring 0.9 to 1.5cms, with a spherical openwork push-piece clasp. Length 45cms. Overall condition fair to good. So

Estate Sterling Silver & Boulder Opal Necklace, measures 18''L end to end

GIA certified 5.51 G boulder opal pendant hung on an 18K yellow gold black diamond beaded necklace. Center stone set in a white + yellow metal pendant w/numerous near colorless round brilliants. Measu

BOULDER OPAL BEAD NECKLACE Containing 49 round graduated boulder opal beads measuring 11.00-7.65 mm in diameter, with yellow gold clasp. 18 1/2 inches long. Stamp: 14K. 27.75 dwt.

This is a vintage designer Mexican sterling silver studio necklace accented with a large boulder opal accented by flanking malachite cabochons. The necklace length is 24" long and it weighs 33.7g. The

Andrea Mikkelson 1970's silver collar necklace signed Denmark 925 S

18k yellow gold; Pendant stamped: PAF / British Assay marks; Necklace stamped: Gioconeli / 750 / Assay marks Including a rigid collar necklace (0.375" W x 15.0" L) with a detachable pendant by design

A BOULDER OPAL AND PINK SAPPHIRE BROOCH / NECKLACE in 18ct gold, set with a central polished boulder opal of 39.0mm in a border of round cut pink sapphires, on a black cord necklace, clasp stamped 750

Boulder Opal, 18k White Gold Pendant Necklace. Featuring one asymmetric boulder opal measuring approximately 26 x 12 mm, set in an 18k white gold pendant enhancer mounting, suspended from a 17 inch, 1

Sterling silver oval shape Australian boulder opal doublet pendant and chain necklace. Opal has very nice play of color. Chain length can be worn as 16 inches and 18 inches. Pendant length 1/2 inches

Three-piece 14K Gold pearl jewelry lot. Necklace: with bezel set Boulder Opal measuring 12mm x 10mm, necklace measures 19in Long and the pearls measure 3mm each. Earrings are clip, measure 1in diamete

Vintage Sajen Moonface Cuff Necklace, Glass Opals and Face. 14" cuff/collar necklace that is appx. 14" with 2" opening. 4mm wide. The pendant is 2.5" tall and 2" wide with a domed opally glass moonfac

Boulder Opal, 18k Yellow Gold Jewelry Suite. Including one boulder opal measuring approximately 54 x 33 mm, 18k yellow gold brutalist style 24 inch necklace; one pair of boulder opal, 18k yellow gold

Mexican Sterling Silver Collar Necklace, set with a simulated opal, 5/8" wide, inner dimensions: 4 3/4" x 4 3/4".

Foxfire 14k Opal Diamond Pendant Necklace and Earring Suite. Includes a boulder opal pendant 48x24mm set with five round brilliant cut diamonds of 4mm each. It hangs from a 14k rope chain 16''. It com

14k yellow gold freeform pendant containing one freeform boulder opal, one oval cabochon doublet, four gemstones of various cuts and colors and one round brilliant cut diamond weighing approximately 0

Necklace with cultured pearls and 14 kt gold clasp with opal , YG 585/000, l. approx. 47 cm, case lock with boulder opal, pearls diam. approx. 4 mm, nat. characteristics

368 carat total - boulder squash blossom, has seven silver wrapped boulder opals. Neckless uses hematite stones, Turkomen silver beads and cornelian roundels.

Dimension: 21 inches Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 23 Inches Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 19x17mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian L

Dimension: 30 lnches Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 19x17mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian L