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Onyx Necklaces

23 items found

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8-8.5mm Black Onyx Endless Necklace. 64"

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Sale: $78.75
$105.00 (Save 25%)


Cultured Pearl Lariat Necklace With Black Onyx Tassels and 14kt Yellow Gold

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Sale from: $123.75
$165.00 (Save 25%)


4-10mm Black Onyx Bead Necklace in Sterling Silver

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Sale from: $56.25
$75.00 (Save 25%)


10mm Black Onyx Bead Necklace With Sterling Silver. 18"

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Sale: $82.50
$110.00 (Save 25%)


Black Onyx Pendant With Chain in 14kt Yellow Gold. 18"

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Sale: $221.25
$295.00 (Save 25%)


Estate Jewelry

C. 2000 Vintage Black Onyx and .85 ct. t.w. Diamond Necklace in 18kt White Gold. 16"

Sale: $2,171.25
$2,895.00 (Save 25%)


Estate Jewelry

C. 1990 Vintage Black Onyx and 14kt Yellow Gold Link Necklace. 25.5"

Sale: $7,796.25
$10,395.00 (Save 25%)


Estate Jewelry

C. 1960 Vintage Black Onyx and .55 ct. t.w. Diamond Necklace in 14kt Yellow Gold. 18.5"

Sale: $3,146.25
$4,195.00 (Save 25%)


Estate Jewelry

C. 1920 Vintage Black Onyx and Diamond Fob Watch Necklace With Synthetic Sapphires in Platinum. 22"

Sale: $5,471.25
$7,295.00 (Save 25%)


Estate Jewelry

C. 1990 Vintage 4mm Black Onyx Multi-Strand Bead Necklace in 14kt Yellow Gold. 24.5"

Sale: $1,421.25
$1,895.00 (Save 25%)


Twisted and Round Black Onyx Bead Necklace With Sterling Silver and 14kt Yellow Gold. 17"

Clearance Sale: $82.50
Clearance: $110.00
Compare: $395.00 (Save 79%)


Black Onyx and .30 ct. t.w. White Sapphire Triangle Necklace in Sterling Silver

Clearance Sale from: $111.75
Clearance: $149.00
Compare from: $495.00 (Save up to 77%)


Green Onyx Necklace in 14kt Gold Over Sterling Silver

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Clearance Sale from: $66.75
Clearance: $89.00
Compare from: $250.00 (Save up to 73%)


Per Page


Silver & Gold Onyx Necklaces

When is a black heart a good thing? When it’s made of shiny faceted onyx and dangling from a Ross-Simons onyx necklace! You'll even find onyx in other colors, too! White cultured pearls and black onyx beads intertwine… textured yellow gold is punctuated by shiny onyx discs… a glorious diamond chandelier ends in an onyx drop… all delightful examples of striking onyx necklaces here on the Ross-Simons website.

Scores more onyx necklaces call out to be treasured gifts or shiny staples of a day-into-evening onyx jewelry collection. Give an onyx necklace or an onyx pendant for the seventh wedding anniversary. (What “seven-year-itch”?) Onyx and pearl, onyx and diamond… enchant her with a surprisingly seductive onyx necklace.

Our designers love the endless inspiration of black onyx. It contrasts stunningly with every precious metal and brings out the true colors of other gemstones. Onyx necklaces spice up your days and nights with fabulous fashion. Go with onyx beads or onyx circles, charms or drops—set in sterling silver, white gold or yellow gold. They all make stunning looks in onyx necklaces and pendants!

Fanciful, exotic, and wonderfully affordable, onyx necklaces seem to speak of the many places in the world that onyx is found: India, South America, China, Madagascar, Mexico and the United States.

Our buyers did the treasure-hunting, our designers worked their magic—so now you can simply enjoy our onyx necklaces and onyx pendants—at lovely prices, too!

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