Diamond Necklaces in Platinum
16 Products
16 Products
16 Products
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$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.
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$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.
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.
$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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$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.
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$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.
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$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.
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$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.
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$5,795
C. 1990. There is so much to adore about this sparkling Estate collection necklace! Crafted in polished platinum, a classic love heart is encrusted with 2.50 ct. t.w. round brilliant-cut diamonds, leading to a sweet scalloped edge. Stationed on a wheat chain. Lobster clasp, diamond heart necklace. Exclusive, one-of-a-kind Estate Jewelry.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
A necklace changes a look the way nothing else does. Same outfit, different chain — entirely different woman. Gold chains: rope, cable, paper clip, box, figaro — in 10kt, 14kt, and 18kt yellow, white, and rose gold. Station necklaces with diamonds or gemstones spaced along delicate strands. Pendant necklaces in every theme — from meaningful religious pieces to playful initials to bold gemstone drops. Pearl strands, graduated or uniform, in cultured freshwater, Akoya, and shell pearl. Layering sets designed to work together without thinking about it. Bead necklaces with lapis, turquoise, and amethyst. Italian-crafted link styles with the weight and finish of pieces that cost twice as much. For over 70 years, Ross-Simons buyers have sourced necklaces from Italy, Asia, and beyond — building a collection that spans everyday essentials to fine pieces worth centering an entire look around. The one that completes yours is here.