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Diamond Necklaces in Platinum

18 Products
18 Products
18 Products
1.00 Carat Lab-Grown Diamond Solitaire Necklace in Platinum 1.00 Carat Lab-Grown Diamond Solitaire Necklace in Platinum
1.00 Carat Lab-Grown Diamond Solitaire Necklace in Platinum
3 Metal Choices
From $1,695
Stunning sparkle, incredible value! Our classic solitaire necklace goes modern with a spectacular 1.00 carat round brilliant-cut lab-grown diamond. Crafted in pristine platinum and suspended from a cable chain with a 2" extender. Lab-grown diamonds are identical to mined diamonds according to their optical, physical and chemical properties. This item includes a report from the International Gemological Institute to verify color, clarity and carat weight. Lobster clasp, lab-grown diamond solitaire necklace.
C. 1990 Vintage 9.5-14mm Cultured Black Pearl Necklace with 4.75 ct. t.w. Diamonds in Platinum C. 1990 Vintage 9.5-14mm Cultured Black Pearl Necklace with 4.75 ct. t.w. Diamonds in Platinum
C. 1990 Vintage 9.5-14mm Cultured Black Pearl Necklace with 4.75 ct. t.w. Diamonds in Platinum
$8,995
C. 1990. A classic look with a hint of drama. This elegant Estate collection necklace drapes the neckline with shimmery 9.5-14mm cultured black pearls, perfectly offset by the icy sparkle of 4.75 ct. t.w. baguette and round brilliant-cut diamonds in beaming platinum. Screw-catch clasp, diamond and black pearl necklace. Exclusive, one-of-a-kind Estate Jewelry.
2.20 ct. t.w. Cushion-Shaped Lab-Grown Diamond Necklace in Platinum 2.20 ct. t.w. Cushion-Shaped Lab-Grown Diamond Necklace in Platinum
2.20 ct. t.w. Cushion-Shaped Lab-Grown Diamond Necklace in Platinum
$2,950
Our wow-worthy necklace comes at a significant value for its impressive size. Take a look at this lavish 2.00 carat rectangular cushion-cut lab-grown diamond haloed by .20 ct. t.w. round brilliant-cut lab-grown diamonds. Crafted in polished platinum and stationed on a classic cable chain with a 2" extender. Lab-grown diamonds are identical to mined diamonds according to their optical, physical and chemical properties.This item includes a report from the International Gemological Institute to verify color, clarity and carat weight. Springring clasp, lab-grown diamond necklace.
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C. 1990 Vintage 1.49 ct. t.w. Diamond Flower Pendant Necklace in Platinum C. 1990 Vintage 1.49 ct. t.w. Diamond Flower Pendant Necklace in Platinum
C. 1990 Vintage 1.49 ct. t.w. Diamond Flower Pendant Necklace in Platinum
$3,295
C. 1990. So stunning at first glance, this graceful 1.49 ct. t.w. diamond flower pendant necklace from our Estate collection becomes even more appealing for its versatile nature. Crafted in platinum and suspended from a sleek box chain that adjusts up to 18" -- a handy feature to ensure the perfect drape across your most-worn neckline styles. Springring clasp, diamond flower pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage 2.00 ct. t.w. Diamond Cross Pendant Necklace in Platinum C. 1990 Vintage 2.00 ct. t.w. Diamond Cross Pendant Necklace in Platinum
C. 1990 Vintage 2.00 ct. t.w. Diamond Cross Pendant Necklace in Platinum
$6,295
C. 1990. A beautiful symbol of faith. Our Estate collection cross pendant necklace lights up your everyday look with 2.00 ct. t.w. round brilliant-cut diamonds in polished platinum. Suspends from a sleek box chain. Springring clasp, diamond cross pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage Tiffany Jewelry .40 ct. t.w. Diamond Heart Necklace in Platinum C. 1990 Vintage Tiffany Jewelry .40 ct. t.w. Diamond Heart Necklace in Platinum
C. 1990 Vintage Tiffany Jewelry .40 ct. t.w. Diamond Heart Necklace in Platinum
$3,395
C. 1990. From our Estate collection, this Tiffany Jewelry find will perfectly suit a woman of traditional taste. Fabulous .40 ct. t.w. round brilliant-cut diamonds form a lovely heart, all set in polished platinum. Stationed on a classic cable chain. Springring clasp, Tiffany Jewelry diamond heart necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1980 Vintage 2.01 ct. t.w. Diamond Floral Necklace in Platinum C. 1980 Vintage 2.01 ct. t.w. Diamond Floral Necklace in Platinum
C. 1980 Vintage 2.01 ct. t.w. Diamond Floral Necklace in Platinum
$6,795
C. 1980. Sparkling in the shape of an abstract bouquet, this Estate collection necklace radiates an unforgettable presence. The design sprouts flowers of many shapes, dazzled by a mix of 2.01 ct. t.w. triangle trillion-cut, marquise and round brilliant-cut diamonds. Crafted in platinum. Suspends from a 10kt white gold curb chain. Springring clasp, diamond floral necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage 1.00 ct. t.w. Diamond Station Necklace in Platinum C. 1990 Vintage 1.00 ct. t.w. Diamond Station Necklace in Platinum
C. 1990 Vintage 1.00 ct. t.w. Diamond Station Necklace in Platinum
$5,395
C. 1990. Bright with beautiful sparkle, this elegant Estate collection necklace features 1.00 ct. t.w. round brilliant-cut diamonds that alternate with swirling openwork stations. Crafted in polished platinum on a classic cable chain. Springring clasp, diamond station necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1980 Vintage .60 Carat Sapphire and .44 ct. t.w. Diamond Pendant Necklace in Platinum C. 1980 Vintage .60 Carat Sapphire and .44 ct. t.w. Diamond Pendant Necklace in Platinum
C. 1980 Vintage .60 Carat Sapphire and .44 ct. t.w. Diamond Pendant Necklace in Platinum
$5,495
C. 1980. This refined Estate collection necklace adds instant sophistication to your everyday style. A .60 carat oval sapphire glows with a sultry deep-blue hue, as .44 ct. t.w. round brilliant-cut diamonds adorn the elegant teardrop-shaped pendant with classic sparkle. Finely crafted in polished platinum. Cable chain. Springring clasp, diamond and sapphire pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage 2.00 ct. t.w. Diamond Heart Pendant Necklace in Platinum C. 1990 Vintage 2.00 ct. t.w. Diamond Heart Pendant Necklace in Platinum
C. 1990 Vintage 2.00 ct. t.w. Diamond Heart Pendant Necklace in Platinum
$5,695
C. 1990. Infused with artful flair, this Estate collection pendant necklace features a charming asymmetrical heart pendant lined with luminous 2.00 ct. t.w. round brilliant-cut diamonds. Crafted in polished platinum. Box chain. Springring clasp, diamond heart pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage 2.00 ct. t.w. Diamond Openwork Pendant Necklace in Platinum C. 1990 Vintage 2.00 ct. t.w. Diamond Openwork Pendant Necklace in Platinum
C. 1990 Vintage 2.00 ct. t.w. Diamond Openwork Pendant Necklace in Platinum
$5,895
C. 1990. Here's a sophisticated and sparkling find from our Estate collection. The necklace boasts a kite-shaped pendant, whose openwork details are illuminated by 2.00 ct. t.w. round brilliant-cut diamonds. Crafted in platinum. Suspends from a 14kt white gold rope chain. Springring clasp, diamond openwork pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1980 Vintage 2.70 ct. t.w. Diamond Cross Pendant Necklace in Platinum with 14kt White Gold C. 1980 Vintage 2.70 ct. t.w. Diamond Cross Pendant Necklace in Platinum with 14kt White Gold
C. 1980 Vintage 2.70 ct. t.w. Diamond Cross Pendant Necklace in Platinum with 14kt White Gold
$8,595
C. 1980. A fanciful symbol of faith, this Estate collection cross necklace emits an unforgettable radiance with 2.70 ct. t.w. round diamonds. Crafted in platinum. Suspends from a 14kt white gold box chain. Lobster clasp, diamond cross pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
Best of Both Worlds. Two-Tone Cable and Paper Clip Link Bracelet. Now From $49
C. 1980 Vintage 1.10 ct. t.w. Diamond Necklace in Platinum C. 1980 Vintage 1.10 ct. t.w. Diamond Necklace in Platinum
C. 1980 Vintage 1.10 ct. t.w. Diamond Necklace in Platinum
$5,395
C. 1980. If you can never get enough diamond sparkle, this Estate collection necklace is for you! 1.10 ct. t.w. marquise and round brilliant-cut diamonds form a candescent centerpiece, stationed on a glittering rope chain. Crafted in polished platinum. Springring clasp, diamond necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1990 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum C. 1990 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum
C. 1990 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum
$5,895
C. 1990. Dainty yet dramatic, this extra-long 39" cable-chain necklace hails from our Estate collection of rare finds -- ready to be draped or layered! Timeless 1.20 ct. t.w. round brilliant-cut diamonds sparkle in bezels that alternate with lovely openwork stations, all crafted in platinum. Springring clasp, diamond station necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 2000 Vintage 1.00 ct. t.w. Diamond Adjustable Pendant Necklace in Platinum C. 2000 Vintage 1.00 ct. t.w. Diamond Adjustable Pendant Necklace in Platinum
C. 2000 Vintage 1.00 ct. t.w. Diamond Adjustable Pendant Necklace in Platinum
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$2,235 Save 20% Price reduced from $2,795 to
C. 2000. An understated look with just the right amount of sparkle, this Estate collection necklace will be your new everyday favorite. The diamond-shaped pendant is crafted in polished platinum, encrusted with dazzling 1.00 ct. t.w. round brilliant-cut diamonds. Box chain adjusts from choker length to 17.5". Springring clasp, diamond adjustable pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 2000 Vintage .75 ct. t.w. Brown and White Diamond Linear Pendant Necklace in Platinum C. 2000 Vintage .75 ct. t.w. Brown and White Diamond Linear Pendant Necklace in Platinum
C. 2000 Vintage .75 ct. t.w. Brown and White Diamond Linear Pendant Necklace in Platinum
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$1,835 Save 20% Price reduced from $2,295 to
C. 2000. Stacked with sultry sparkle, this demure Estate collection necklace features a sleek linear pendant brimming with .62 ct. t.w. princess-cut brown diamonds and .13 ct. t.w. round brilliant-cut white diamonds. Crafted in polished platinum and stationed on a 14kt white gold cable chain. Lobster clasp, white and brown diamond linear pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1980 Vintage 1.75 ct. t.w. Diamond Swirl Pendant Necklace with Onyx in Platinum C. 1980 Vintage 1.75 ct. t.w. Diamond Swirl Pendant Necklace with Onyx in Platinum
C. 1980 Vintage 1.75 ct. t.w. Diamond Swirl Pendant Necklace with Onyx in Platinum
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$3,025 Save 30% Price reduced from $4,295 to
C. 1980. Our Estate collection is filled with unique finds, like this marvelous necklace! 1.75 ct. t.w. baguette and round brilliant-cut diamonds dazzle in sumptuous swirls set in polished platinum. Turn over the fanciful pendant and you're met with the thoughtful detail of a bold 14mm carved onyx backing. Cable chain. Lobster clasp, onyx and diamond swirl pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
C. 1980 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum C. 1980 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum
C. 1980 Vintage 1.20 ct. t.w. Diamond Station Necklace in Platinum
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$4,219 Save 30% Price reduced from $5,995 to
C. 1980. Sometimes, simple but luxurious is best -- and this ample example is brought to you by our own Estate collection! Stationed on a cable chain are 1.20 ct. t.w. bezel-set round brilliant-cut diamond stations that alternate with swirling elements crafted in rich platinum. At an impressive 40" length, this fine necklace is perfect for layering with your other favorites. Springring clasp, diamond station necklace. Exclusive, one-of-a-kind Estate Jewelry.

Silver, 18kt Gold Vermeil & Gold Necklaces

To attract admirers, wear a beautiful necklace. It's an idea as old as the Stone Age and it still works! A necklace is an absolute must for dressing up, or to perk up your look on a casual day. With over 2,000 necklaces on our site, Ross-Simons will satisfy all your necklace needs and desires.

Looking for sophisticated elegance? Go straight to our gold necklaces. Our fine jewelry merchants are constantly updating a treasure trove of gold necklace designs, inspired by their global travels. Choose a chic 14kt gold necklace from Italy... a white gold necklace with contrasting gemstones... or a gold diamond necklace to take her breath away.

Diamond necklaces are a specialty at Ross-Simons. You can have the glitter and glamour of a diamond necklace at surprisingly affordable prices! See our diamond station necklaces or diamond-accented pendant necklaces for gorgeous examples.

Our sterling silver necklaces also offer timeless style and exceptional value. Every look from sporty to vintage is here, in almost 400 sterling silver necklaces.

If you love a glowing tiered look, our 18kt gold vermeil necklaces are the perfect choice. Crafted using a thick layer of real 18kt gold over sterling silver, these basic chains and stylish strands are priced so nicely you won’t mind picking up a couple for you – and maybe one for a friend, too!  

Feeling artsy? Have a look at our beaded necklaces. In single or multiple and twisted strands , beaded necklaces are fun and fashionable. Romantic? Choose a heart necklace—we have over 150 heart necklace designs. Our necklace collection has something for everyone, for every day of the week. Browse, enjoy, and order today!

Browse ross-simons.com and discover everything from classic pearl jewelry to bright gold jewelry and beyond. We travel the globe to bring you this unique jewelry collection, which features dazzling diamond jewelry from India, stylish designer jewelry from Italy, and much, much more. The entire world of fine jewelry is all just a click away.

Love vintage jewelry? Try our Estate Collection. It's full of timeless jewelry designs from eras long past. Fashion-forward? Take a look at our jewelry trends. We offer the latest and greatest in fine jewelry, giving you the touch of glamour and sophistication you want.

So whether you're looking for the sparkle of diamond jewelry, the fire of ruby jewelry, or the cool glow of sapphire jewelry, you'll find it here, and at unbelievable values.

Fabulous jewelry. Great prices. That is our motto. Keep on browsing and find out why.