Onyx ~ Antique & Vintage Items

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5g- Black Onyx Cabochon Sterling Silver Drop Earrings: Vintage earrings featuring round black onyx cabochon stones set in bezel settings. The mounting has a circular, tiered disc design with engravedgeometric/aztec-style pattern work around the perimeter.

2026

5g- Black Onyx Cabochon Sterling Silver Drop Earrings

Sphere Auctions LLC

5g-Black Onyx Sterling Silver Native American Southwestern: Vintage oval ring with a long black onyx inlay design and open geometric silver-tone overlay. Sleek Southwestern-inspired look with a modernist statement shape. Elegant and easy to wear alone or stack

2026

5g-Black Onyx Sterling Silver Native American Southwestern

Sphere Auctions LLC

5g- Men's Sterling Silver Black Onyx Signet Ring: A classic men's signet-style ring featuring a cushion-shaped black onyx stone set in a bezel setting. The band displays decorative vertical ribbed/grooved detailing on the shoulders flanking the stone

2026

5g- Men's Sterling Silver Black Onyx Signet Ring

Sphere Auctions LLC

7g- Vintage Sterling Silver Black Onyx Signet Ring: A men's signet-style ring featuring a rectangular/trapezoidal black onyx centerstone set in a sterling silver bezel.The shoulders of the ring feature intricate engraved and dotted floral or arabesque

2026

7g- Vintage Sterling Silver Black Onyx Signet Ring

Sphere Auctions LLC

Art Deco 925 Sterling Silver Onyx Marcasite Ring 5g: Vintage Art Deco (circa 1920s–1930s) sterling silver ring featuring a rectangular step-cut black onyx center stone, framed by sparkling marcasite accents. The design showcases bold geometric lines a

2026

Art Deco 925 Sterling Silver Onyx Marcasite Ring 5g

Sphere Auctions LLC

9g- Black Onyx Double Stone Sterling Silver Drop Earrings: A pair of sterling silver drop earringsfeaturing two rectangular/square-cut black onyx stones set in bezel settings, stacked vertically. The earrings have a post/stud back mechanism with a butterfly c

2026

9g- Black Onyx Double Stone Sterling Silver Drop Earrings

Sphere Auctions LLC

925 Silver Black Onyx Marcasite Halo Ring Pear Shape 4g: A vintage-style sterling silver ring dating to the late 20th century (circa 1980s–2000s), featuring a pear-shaped black onyx cabochon surrounded by a halo of faceted marcasite stones.The design is i

2026

925 Silver Black Onyx Marcasite Halo Ring Pear Shape 4g

Sphere Auctions LLC

Vintage Sterling Silver Ring Lot Navajo Onyx & Floral Band 2pc: A vintage sterling silver ring set featuring two distinct styles dating from circa 1930s–1970s.The first ring showcases a Southwestern Navajo-style design with an oval black onyx cabochon set in a d

2026

Vintage Sterling Silver Ring Lot Navajo Onyx & Floral Band 2pc

Sphere Auctions LLC

8g- Milor Italy Greek Key Onyx Sterling Silver Pendant Necklace: A circular sterling silver pendant featuring a raised black onyx cabochon center stone surrounded by an intricate Greek Key (Meander) pattern border. The pendant has a decorative bail with matching Gr

2026

8g- Milor Italy Greek Key Onyx Sterling Silver Pendant Necklace

Sphere Auctions LLC

Vintage Sterling Silver Concho Dangle Earrings Black Onyx Southwestern Boho Statement: Vintage sterling silver concho-style dangle earrings featuring classic Southwestern design.Each earring displays hand-stamped decorative patterns with a two-tier concho form, set with polished black o

2026

Vintage Sterling Silver Concho Dangle Earrings Black Onyx Southwestern Boho Statement

Sphere Auctions LLC

5g-Zuni Southwest Sterling Silver Inlaid Multi Stone Bird Ring: Zuni sterling silver inlaid multi stone ring -. mother of pearl, black onyx, turquoise, spiny oyster.

2026

5g-Zuni Southwest Sterling Silver Inlaid Multi Stone Bird Ring

Sphere Auctions LLC

Gorgeous Ornate Vintage Sterling Silver & Black Onyx Ring: Very good vintage condition with minor patina according to age. The ring is a size 3 1/2 and weighs ca. 2 grams. Marked for Sterling Silver.

2026

Gorgeous Ornate Vintage Sterling Silver & Black Onyx Ring

Pandora Auctions

BENDIXEN DANISH ROSEWOOD & ONYX COFFEE TABLE: Circular top with chromed steel legs. Floating table top in rosewood veneer and central onyx slab in various green and brown tone. Marked underneath. Denmark, circa 1970s. Dimensions: H 20.25" x Dia.

2026

BENDIXEN DANISH ROSEWOOD & ONYX COFFEE TABLE

Westport Auction

11.96 Ct Natural Blue Onyx Hexagon Cut: Weight - 11.96 Ct / Dimensions - 17.70 x 15.60 x 7.60 mm / Shape - Hexagon Cut / Clarity - Opaque / Origin - Brazil / Comments - None

2026

11.96 Ct Natural Blue Onyx Hexagon Cut

13.46 Ct Natural Black Onyx Cushion Cab: Weight - 13.46 Ct / Size - 26.00 x 8.00 x 3.00 mm / Shape - Cushion Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

13.46 Ct Natural Black Onyx Cushion Cab

14.58 Ct Natural Black Onyx Oval Cab: Weight - 14.58 Ct / Dimensions - 21.50 x 16.30 x 5.40 mm / Shape - Oval Cab / Color - Black / Clarity - OPaque / Origin - Brazil / Treatment - None

2026

14.58 Ct Natural Black Onyx Oval Cab

7.12 Ct Natural Black Onyx Fancy Cab: Weight - 7.12 Ct / Size - 20.00 x 6.00 x 6.00 mm / Shape - Fancy Cab / Color - Black / Clarity - OPaque / Origin - Africa / Treatment - None

2026

7.12 Ct Natural Black Onyx Fancy Cab

12.25 Ct Natural Green Onyx Pear Cut Beads: Weight - 12.25 Ct / Dimensions - 8.0x3.7 - 8.1x4.3 mm / 7 Pc's / Shape - Pear Cut Beads / Clarity - Transparent / Origin - Brazil / Treatment - None

2026

12.25 Ct Natural Green Onyx Pear Cut Beads

10.27 Ct Natural Orange Onyx Drilled Fancy Cab: Weight - 10.27 Ct / Dimensions - 27.00 x 20.00 x 3.80 mm / Shape - Drilled Fancy Cab / Clarity - Semi Transparent / Origin - Brazil / Treatment - None

2026

10.27 Ct Natural Orange Onyx Drilled Fancy Cab

Lot of Five Italian & European Souvenir Figural Pieces: Five decorative figurines, including a gold-tone metal swan, a miniature Roman chariot scene mounted on a green onyx base, a bronze-like statue of Pieta on a marble column labeled 'Souvenir Roma,' a m

2026

Lot of Five Italian & European Souvenir Figural Pieces

Block Auction House

Onyx Carved Heart Palm Stones: Nice pair, 3" by 3". 460 grams.

2026

Onyx Carved Heart Palm Stones

Davis Brothers Auction

(LOT) ARCHITECTURAL ONYX & CERAMIC HARDWARE: CABINET & DOORKNOBS: (lot) Architectural cabinet and door knobs, various components, including: (35) white floriform, (10) gilt metal and onyx, (5) porcelain with polychrome design, largest: approx 3"h, 2.75"w, 2.25"d, 7.

2026

(LOT) ARCHITECTURAL ONYX & CERAMIC HARDWARE: CABINET & DOORKNOBS

Austin Auction Gallery

Set of 4 Navajo Native American Sterling Silver Rings & Bracelet: Title: Set of four Native American-style rings and one cuff bracelet, each with distinct designs and materials. Rings feature inlays of turquoise, coral, onyx, and mother of pearl, with detailed silve

2026

Set of 4 Navajo Native American Sterling Silver Rings & Bracelet

Auction Wallstreet

Native American Kokopelli Sterling Onyx Earrings: Pair of Native American Kokopelli Sterling Silver & Black Onyx Earrings. Hallmarked 925 on backs. Each measures just over 2 inches in length.

2026

Native American Kokopelli Sterling Onyx Earrings

Gemini Auction Company

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