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Ring features a shimmering marcasite-studded deco design with a gleaming onyx stone in a semi-yin-yang style Jewelry is crafted of fine sterling silver Display your love with this romantic... Glitzy Rocks Sterling Silver Marcasite and Onyx Heart Ring (Size 9), Adult Unisex, Black

Glitzy Rocks Sterling Silver...

Overstock.com
$28.49 $25.64
Add some sparkle and shine to your look with this Pori jewelry, featuring a unique wide heart design. The sterling silver ring is a glamorous and high quality piece of jewelry, perfect for... Pori Sterling Silver Black Onyx Pave Heart Ring (Size 6), Women's, White

Pori Sterling Silver Black Onyx Pave...

Overstock.com
$22.79
Guaranteed Authentic! Ring 14K white gold ring featuring 0.19 carats of round brilliant diamonds, heart shape onyx and tapered shank. Item - Rring36887 Ring 14K Diamond & Onyx Heart Cocktail white

Ring 14K Diamond & Onyx Heart...

The RealReal
$295.00
Ring showcases a smooth raised heart design Jewelry is crafted entirely of gleaming black onyx Create a fun and fashionable look with a genuine onyx heart ring Ring front measures 13 mm... Glitzy Rocks Genuine Black Onyx 13-millimeter Ring with Smooth Heart Design (Size 7), Adult Unisex

Glitzy Rocks Genuine Black Onyx...

Overstock.com
$13.19 $11.87
Guaranteed Authentic! Ring 14K yellow gold Signet ring featuring black onyx inlay with textured and high polish finish throughout. Item - Rring29339 Ring 14K Onyx Signet yellow

Ring 14K Onyx Signet yellow

The RealReal
$295.00
Guaranteed Authentic! Ring 18K white gold ring featuring 0.15 carats of single-cut diamonds and 0.13 carats of round onyx details. Item - Rring31148 Ring 18K Diamond & Onyx white

Ring 18K Diamond & Onyx white

The RealReal
$525.00 $420.00
A hear-cut black onyx sits below a small round-cut clear cubic zirconia in prong settings on this glittering ring. Crafted of 14-karat yellow gold overlay, this ring shines with a high... Palm Beach Jewelry Heart-Shaped Genuine Onyx Cubic Zirconia Accent 14k Yellow Gold-Plated Cocktail Ring Natur (Size 7), Women's

Palm Beach Jewelry Heart-Shaped...

Overstock.com
$30.99 $26.34
A beautiful heart-cut black onyx gemstone is accented by clear crystal rounds on this Angelina D'Andrea ring. This fantastic jewelry is made of highly polished gold overlay. PalmBeach... Palm Beach Jewelry Heart-Shaped Genuine Onyx and Crystal Accent 14k Yellow Gold-Plated Ring Naturalist (Size 9), Women's, Black

Palm Beach Jewelry Heart-Shaped...

Overstock.com
$26.49 $23.84
Guaranteed Authentic! Ring 18K yellow and white gold cocktail ring featuring 14mm carved black onyx at head with 0.12 carats of round brilliant diamonds embellished throughout ornament.... Ring 18K Diamond & Onyx Cocktail yellow

Ring 18K Diamond & Onyx Cocktail...

The RealReal
$525.00
Guaranteed Authentic! Ring 18K white gold cocktail ring featuring a 0.12 carat marquise diamond at center, 0.26 carats of round brilliant diamond accents, black onyx cabochon detail and... Ring 18K Onyx & Diamond Cocktail white

Ring 18K Onyx & Diamond Cocktail white

The RealReal
$695.00
Guaranteed Authentic! Ring 14K yellow gold ring featuring carved onyx cameo at center and high polish throughout. Item - Rring35740 Ring 14K Onyx Cameo yellow

Ring 14K Onyx Cameo yellow

The RealReal
$195.00
Guaranteed Authentic! Ring 10K white gold art deco cocktail ring featuring oval onyx. Item - Rring35848 Ring 10K Art Deco Onyx Cocktail white

Ring 10K Art Deco Onyx Cocktail white

The RealReal
$275.00
Guaranteed Authentic! Ring 14K white gold art deco cocktail ring featuring black onyx, filigree at center with 0.03 carat diamond, openwork and filigree engravings throughout. Item -... Ring 14K Art Deco Diamond & Onyx white

Ring 14K Art Deco Diamond & Onyx white

The RealReal
$395.00
Guaranteed Authentic! Ring 14K white gold cocktail ring featuring black slice onyx and 0.05 carat of single cut sapphire. Item - Rring35070 Ring 14K Onyx & White Sapphire Filigree white

Ring 14K Onyx & White Sapphire...

The RealReal
$325.00
Guaranteed Authentic! Ring 14K white gold cameo flip ring featuring shell, 0.03 carats of single cut diamonds, rectangular onyx slice, filigree and a high polish finish throughout. Item -... Ring 14K Diamond & Onyx Cameo Flip white

Ring 14K Diamond & Onyx Cameo Flip...

The RealReal
$495.00
Guaranteed Authentic! Ring 14K yellow gold art deco ring featuring a 0.29 carat old European cut diamond set in an onyx slice and textured and high polish finishes throughout. Item -... Ring 14K Onyx & Diamond Art Deco yellow

Ring 14K Onyx & Diamond Art Deco...

The RealReal
$395.00
Guaranteed Authentic! Ring 14K white gold art deco ring featuring a 0.04 carat single cut diamond set in onyx slice, filigree and high polish finish throughout. Item - Rring35944 Ring 14K Onyx & Diamond Art Deco white

Ring 14K Onyx & Diamond Art Deco white

The RealReal
$345.00
Guaranteed Authentic! Ring 14K yellow gold Victorian cocktail ring featuring carved glass cameo, onyx inlay and high polish throughout. Item - Rring35997 Ring 14K Carved Cameo & Onyx Victorian Cocktail yellow

Ring 14K Carved Cameo & Onyx...

The RealReal
$195.00
Guaranteed Authentic! Ring 10K yellow and white gold Victorian ring featuring a rectangular onyx, a 0.02 carat single cut diamond and a high polish finish throughout. Item - Rring36411 Ring Victorian 10K Onyx & Diamond yellow

Ring Victorian 10K Onyx & Diamond...

The RealReal
$195.00
Guaranteed Authentic! Ring Men's 14K yellow gold signet ring featuring black onyx center, 0.03 carats of round brilliant diamonds and high polish finish throughout. Item - Rring35856 Ring 14K Onyx & Diamond Signet yellow

Ring 14K Onyx & Diamond Signet yellow

The RealReal
$345.00
Guaranteed Authentic! Ring 14K yellow gold cocktail ring featuring bezel set cabochon green onyx with textured cable trim throughout. Item - Rring24917 Ring 14K Green Onyx Cocktail yellow

Ring 14K Green Onyx Cocktail yellow

The RealReal
$795.00 $636.00
Guaranteed Authentic! Ring 18K yellow gold cocktail ring featuring onyx, rock crystal quartz, pave diamonds and bezel-set diamond at head. Item - Rring26282 Ring Rock Crystal, Onyx & Diamond yellow

Ring Rock Crystal, Onyx & Diamond...

The RealReal
$1,195.00 $956.00
Guaranteed Authentic! Ring 18K white gold ring featuring faceted black onyx at head and 0.42 carats of pave round brilliant diamonds at shank. Item - Rring28748 Ring 18K Pavé Diamond & Onyx white

Ring 18K Pavé Diamond & Onyx white

The RealReal
$595.00
Guaranteed Authentic! Ring 18K white gold band featuring 0.51 carats of round brilliant diamonds, mother of pearl, and black onyx. Item - Rring30756 Ring 18K Onyx, Mother of Pearl & Diamond Band white

Ring 18K Onyx, Mother of Pearl &...

The RealReal
$1,795.00 $1,256.50

30%

Off
Guaranteed Authentic! Ring 18K yellow gold ram's head cocktail ring featuring 0.16 carats of single-cut diamonds, 0.14 carats of round chrysoprase and enamel inlay. Item - Rring31005 Ring 18K Diamond & Onyx Ram Cocktail yellow

Ring 18K Diamond & Onyx Ram Cocktail...

The RealReal
$825.00 $577.50

30%

Off
Guaranteed Authentic! Ring 10K yellow gold Victorian ring featuring carved onyx, 0.01 carat single cut diamond set in sterling silver and high polish throughout. Item - Rring35849 Ring 10K Victorian Onyx & Diamond Cocktail yellow

Ring 10K Victorian Onyx & Diamond...

The RealReal
$225.00
Guaranteed Authentic! Ring 14K yellow gold vintage cameo ring featuring carved black and white onyx inlay and sculpted filigree at sides of shank. Item - Rring35720 Ring 14K Onyx Cameo Vintage yellow

Ring 14K Onyx Cameo Vintage yellow

The RealReal
$495.00
Guaranteed Authentic! Ring 14K white gold art deco cocktail ring featuring black onyx, 0.07 carat diamond at center, filigree engravings and openwork throughout. Item - Rring35777 Ring 14K Diamond & Onyx Cocktail white

Ring 14K Diamond & Onyx Cocktail white

The RealReal
$325.00
Guaranteed Authentic! Ring 14K white gold art deco tablet ring featuring black onyx, 0.03 carat diamond, openwork and filigree throughout. Item - Rring35765 Ring 18K Art Deco Diamond & Onyx white

Ring 18K Art Deco Diamond & Onyx white

The RealReal
$425.00
Guaranteed Authentic! Ring 14K yellow and white gold Victorian cocktail ring featuring black onyx, 0.05 carats of diamonds set across onyx and ribbed accents. Item - Rring35949 Ring 14K Onyx & Diamond Victorian Cocktail yellow

Ring 14K Onyx & Diamond Victorian...

The RealReal
$495.00