Onyx Necklaces

This necklace is just gorgeous and has a fabulous design. It's a Sterling Silver Geometric Onyx Link Choker/Necklace with matching earrings. It is handmade and drapes beautifully a...

An edgy and highly collectible late 19th-century Victorian silver necklace, featuring a masterfully sculpted bird’s claw gripping a solid, po...

This Cartier Caresse d'Orchidées necklace, crafted in 18-karat white gold, embodies the maison's signature floral elegance. Featuring two orchid motifs, this piece showcases the dual...

Art Deco Onyx & Diamond Pendant Platinum Stamped Circa 1920s Capture the sophisticated glamour of the 1920s with this exquisite Original Art Deco Pendant. Meticulously crafted...

This is a black tourmaline necklace with cameo pendant. Nouveau Boutique created this necklace with natural black tourmaline crystals and polished onyx beads. It is attached to a 193...

This Van Cleef & Arpels necklace, crafted in 18k yellow gold, showcases the iconic Alhambra design with a bold, graphic twist. Featuring twenty black onyx clovers, each motif is meti...

A Return to Tiffany necklace by Tiffany & Co. in sterling silver, featuring a round link chain and a removable double heart pendant. The pendant pairs a sterling silver Return to Tiffany heart tag with a black onyx heart, joined by a spring ring so the pendant detaches and can also be worn as a charm on a bracelet or another chain. A classic Return to Tiffany silver and onyx double heart necklace from Tiffany & Co. Details Round link chain in sterling silver Removable double heart pendant, medium silver heart tag with a large black onyx heart Hearts joined by a spring ring; pendant detaches and can be worn as a charm Silver tag engraved PLEASE RETURN TO TIFFANY & CO. NEW YORK 925 Reverse marked ©Tiffany & Co. 925; chain stamped T&Co. 925 Onyx heart is unmarked, as is standard for Tiffany onyx...

A Vintage Alhambra pendant necklace by Van Cleef & Arpels, set in 18 karat yellow gold and centering the house's iconic four-leaf clover motif in polished black onyx, bordered by...

This is necklace that everyone should have in their collection. It is simple, elegant and so versatile. You can wear it alone or where it with a pendant. The onyx beads are 4.1 mm...

Exquisite, rare antique diamond, carved onyx, pearl, enamel and 18K yellow gold locket in the form of a scallop with a precious pearl 19th Century The scallop and precious pearl moti...

This 18‑inch necklace blends **gold‑washed lava rock** with **matte black onyx rondels** to create a striking play of texture, color, and form. The lava rock beads have an open, airy...

Lorraine’s Bijoux has on offer a Large Vintage multi stone Sterling Silver Mexican Cross Necklace. Cabachons of onyx, lapis lazuli, Carnelian, Rhodochros...

Details are here below: Metal- Silver Metal purity- sterling silver or 925 Gemstone- Onyx Origin- Natural Diamond- Natural rose cut diamond Diamond origin- Natural, real, earth mine...

Beautiful real natural green Turquoise enhanced with natural real black Onyx is 16 1/2 inches long. The largest of the Green Turquoise is approximately 22mm. The largest Black Ony...

Shell Pendant By Jen Proudman Jewelry Black Onyx, Diamond, Spinel and 14k Gold Carved black onyx  Shell (15mm diameter) with offset 2mm white diamond bezeled in gold and a stunnin...

The largest middle natural red Coral in this double strand necklace is 34mm x 16mm. The glittering gemcut sparkling natural black Onyx are 4mm. This dramatic fascinating beautiful ...

A fine signed, beaded necklace. By Paloma Picasso for Tiffany & Co. Strung with alternating moonstone, quartz, and onyx 10 mm beads on an incredibly large 61-inch silk cord. ...

This is a wonderful Zuni Native American stone-to-stone inlay pendant in Sterling Silver with red coral, turquoise, opal, black onyx, orange spiny oyster and Mother of Pearl to creat...

A masterclass in Victorian ingenuity and versatility, this rare c. 1880s antique piece functions as a dual-purpose convertible brooch and pendant necklace. At its center rests a met...

Black Onyx rondels (largest is 20 mm) enhanced with glittering brilliant pinky Czech crystals set in a unique handmade 17.5 inch long necklace with goldy hook clasp. This stands out...

A Tiffany & Co. double-strand necklace of polished black beads, centered on a hidden floral clasp formed as two overlapping blossoms, each accented with an 18k yellow gold starfish. ...

Perfect Poisson Pendant Black Onyx, Diamond, Spinel & 14k Gold Carved black onyx fish with 2mm round diamond eye bezeled in gold with a stunning grey/silver spinel atop and gol...

Yves Saint Laurent / Martine Boutron Haute Couture faux coral pate de verre and stone necklace with onyx and hematite asymetrical decoration, silver gi...

Double strand of highly polished glowing natural black Onyx (18 mm) enhanced with rondels of natural red Bamboo Coral set in this double strand necklace with gold tone easy to use ho...

This striking 18‑inch necklace showcases a series of highly polished oval onyx tablets, each measuring 24×18 mm and selected for their deep, velvety black sheen. The smooth, reflec...

Carved Shell Pendant Black Onyx, Diamond, Emerald & 14k Gold Carved black onyx shell (15mm diameter) with 2mm gold bezels Diamond and an emerald cut emerald on top with a gold ...

Black Onyx Dog Paw Pendant with Diamonds and Emerald Black Onyx, Diamonds, Zambian Emerald and 14k Gold Hand carved black onyx dog paw with four 2mm round diamonds bezeled in gold ...

An iconic Van Cleef & Arpels Vintage Alhambra pendant necklace, crafted in 18K rose gold and set with polished black onyx. The pendant features the Maison’s celebrated four-leaf clov...

This pendant embodies modern sophistication through a masterful blend of gemstones: a luminous 10.85ct yellow sapphire set within polished onyx, accented by a row of brilliant diamon...

An iconic 18k yellow gold and onyx Van Cleef and Arpels necklace from the Vintage Alhambra collection. The necklace comprises of 10 iconic 4 leaf clover motifs, each set with a beade...

Black Natural Stone Necklace Natural Onyx set with Sterling Silver 925 Size: approx 25 x 20 mm (1' inch tall) Weight approx 8.4 grams Cord adjustable 16' - 18' inch sterling silver...

David Yurman Albion Black Onyx Sterling Silver and 14K Yellow Gold Double Wheat Chain Necklace- Make a bold statement with this iconic David Yurman necklace, showcasing the designer...

This stunning tennis necklace from Silvorra is meticulously crafted in 925 sterling silver and adorned with 73 natural octagon-cut green onyx, each measuring 5x3 mm for a total weigh...

This is an Art Deco style green onyx necklace with a sterling silver leopard clasp. We created this double-strand long swing necklace with 8mm and 2mm faceted translucent green onyx ...

Materials: 950-grade silver; onyx stone pendant; includes an 18 inch long silver necklace (chain) Pendant Dimensions: Width: 0.13″; Length: 0.20″ Editorial Tone: Channel the sophist...

A refined Italian-crafted station necklace featuring alternating onyx and turquoise circles set in solid 14-karat yellow gold. Each circle measures approximately 0.48 inches (12.2 mm...

NOTE: This item contains natural coral. Sale is restricted to UK buyers only. This item will not be shipped internationally due to wildlife trade regulations. A striking rare vintag...

This elrgant 925 sterling silver pendant features a single pear-shaped natural black onyx gemstone measuring 15x14 mm and weighing 8.8 carats. The bold centerpiece is framed by an el...

Elegant and extravagant Patricia Von Musulin Jet and Lapis Beaded Necklace from the 1990's. Strands of tiny faceted Onyx and Lapis beads are hand knotted and looped together in front...

A ten-motifs Alhambra necklace designed by Van Cleef & Arpels. This is a beautiful ten-motif chain necklace created by the prestigious French jewelry house of Van Cleef & ...

A striking vintage Panthère de Cartier diamond and onyx necklace set in 18k white gold.

The necklace features a pavé-set diamond circular link suspending a geometric recta...

These highly polished beautiful glowing bright real Spider Web Agates are all approximately 18mm round. They are enhanced by little highly polished glittering gem-cut 6mm black Onyx....

Art Deco Green Onyx and Marcasite Pendant set in sterling by Wachenheimer, Germany. Fancy cut crysophrase stones are set into Art Deco design set with marcasites. Wachenheimer made h...

Victorian Pietra Dura Locket from the late 19th Century set in 9K gold. Inlaid hardstones form a floral design in turquoise, alabaster and agate ...

A fine signed 36" inch silver beaded necklace. By David Yurman. In sterling silver. From the 'Elements' collection. Comprising graduated sterling silver and white beads with tex...

A sophisticated Tiffany & Co. necklace crafted in sterling silver, featuring elegant black onyx accents and the brand’s signature toggle clasp design. The bold contrast between p...

Marina J.'s unique art deco style necklace features a variety of shapes: sphere pearls, cylindrical onyx beads, coral teardrop beads, and more. This striking piece mimics jewelry fro...

Beautiful necklace in 9 kt rose gold structure mounted with sections of lapis, coral, malakite, onyx, pearls and rock crystal. Between of them, structures in 9 kt white gold studded ...

A luxurious 18k yellow gold necklace by Van Cleef & Arpels from the Magic Alhambra collection. The necklace features 6 four leaf clover motifs alternating in size, set with onyx,...

Iconic pre-owned Cartier Panthère Necklace featuring a Tsavorite eye and Onyx nose as well as a double row diamond cut trace link chain. This necklace is not a current model and is a...

Brand: Tiffany & Co. Style: Bow Pendant Multi-Strand Necklace Material: 18k Yellow Gold Gemstones: Natural black onyx beads Necklace Width: Approximately 23.1 mm Pendant Measurements...

Judith Ripka Sterling Silver Onyz & CZ Pendant- This stunning Judith Ripka pendant with enhancer is set in sterling silver and features an onyx ...

Black Onyx & Tsavorite Paisley Necklace Black Onyx, Tsavorite & 14k Gold This jaw dropping necklace can be worn 15”-17” with a two inch extender at the back. The gold lobst...

SOL Pendant By Jen Proudman Jewelry Black Onyx, Citrine, Diamonds, 14k Gold The S O L line was developed around the idea of honoring oneself and living a life that lights you up. ...

This significant lavender jade carving of the grape motif is the latest addition to Dilys’ rare jade collection. The icy lustre of this substantial piece of natural A-grade lavender ...

This Vintage tiara is a symbol of beauty and self-love. It is handmade with Natural rose cut diamonds and emerald green colored onyx gemstone drops in sterling silver. Diamond- Rose...

A rare and wonderful antique Belle Epoque, Victorian locket pendant with a beautiful engraved "M" initial on one side. The wonderful locket is 10 Karat Rose Gold. On one side the B...

Elegance and sophistication come together in this stunning 18K white gold necklace, adorned with a captivating combination of onyx barrel beads, coral spheres, and diamonds. This pie...

A stunning Pietra Dura Brooch in 14 Karat Gold with inlaid semi-precious stones creating a mosaic image of flowers including a gorgeous central whit...

These Victorian Onyx Lockets are so spectacular! I just love them for making a big, bold statement! Crafted in 14K Yellow Gold, the design featur...