Gemstone Jewelry in Platinum
249 Products
249 Products
249 Products
Clearance!
An absolute showstopper -- this jaw-dropping gemstone ring celebrates sensational sparkle and high-impact color. A striking 15.00 carat oval kunzite is centered east-west style to set itself apart even more from anything you've ever seen. All around, .86 ct. t.w. round brilliant-cut lab-grown diamonds cast their fiery glow. Crafted in polished platinum. Lab-grown diamonds are identical to mined diamonds according to their optical, physical and chemical properties. 5/8" wide. Kunzite ring.
$4,995
C. 1990. There's nothing quite as elegant as an opal ring. Just joined our Estate collection, this design features an 18x13mm oval center gem nested in an ornate platinum setting. 3/4" wide. Opal ring. Exclusive, one-of-a-kind Estate Jewelry.
$5,995
C. 2000. Brimming with rich, royal-blue sparkle, this Estate collection ring spotlights a sensational 2.66 carat oval sapphire haloed by .57 ct. t.w. baguette and round brilliant-cut diamonds. Finely crafted in polished platinum. 1/2" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,795
C. 1990. One look at this luxurious Estate collection ring and it's clear that sapphires and diamonds are a dream team. Beautiful 2.29 ct. t.w. oval sapphires cast the most stunning rich-blue sparkle, arranged in a glamorous grid alongside radiant .66 ct. t.w. round brilliant-cut diamonds. Finely crafted in polished platinum. 3/8" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$5,695
C. 1990. Whether you celebrate a July birthday or can't get enough of rich red, this exceptional Estate collection pendant necklace showcases a fiery 1.26 carat pear-shaped ruby haloed by .32 ct. t.w. diamonds. Finely crafted in polished platinum and suspended from a 14kt white gold rope chain. Springring clasp, diamond and ruby pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
$2,095
C. 1980. A true classic for gemstone lovers and those born in September, this brilliant Estate collection band parades five velvety round sapphires, totaling .70 carats, between shimmery .36 ct. t.w. diamond borders. Crafted in polished platinum. 1/4" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,695
C. 2020. With its warm amber hue, this Estate collection ring will bring a memorable presence to any outfit instantly. The 4.00 carat rectangular cushion-cut citrine centerpiece is sided by two .52 ct. t.w. trillion-cut trapezoid diamonds, creating a striking fire-and-ice effect. Crafted in platinum. 7/16" wide. Diamond and citrine ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,695
C. 1990. From our Estate collection, this charming 1.45 ct. t.w. diamond heart pin/pendant hosts two love birds brought to life with .35 ct. t.w. ruby rounds and .10 ct. t.w. sapphire baguettes. Finely crafted in polished platinum. Concealed bail fits up to a 5mm chain, sold separately. Revolver safety. Sapphire, ruby and diamond heart pin/pendant. Exclusive, one-of-a-kind Estate Jewelry.
$5,795
C. 2000. From our Estate collection, this stunning ring is entirely modern -- yet conveys the look of a storied heirloom! A dazzling .67 carat square princess-cut diamond beams from the center of a marvelous mosaic, while sparkling round diamonds and .24 ct. t.w. sapphire squares decorate the rectangular top. Crafted in polished platinum. 3/4" wide. Sapphire and diamond ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,995
C. 1990. A statement of sophistication, this Estate collection ring flaunts two rows of radiant 1.28 ct. t.w. square diamonds with a rich stripe of 1.23 ct. t.w. square sapphires sparkling across the center. Finely crafted in polished platinum. 3/8" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$1,595
C. 2020. From our Estate collection, this elegant halo-style ring will become a well-worn favorite. Features a classic .36 carat oval ruby bordered by icy .19 ct. t.w. baguette and round brilliant-cut diamonds. Crafted in polished platinum. 5/16" wide. Diamond and ruby ring. Exclusive, one-of-a-kind Estate Jewelry.
$2,695
C. 1990. Emeralds, in all of their evergreen glory! A classic choice from our Estate collection of rare luxuries, this breathtaking band lines up vivid .32 ct. t.w. square emeralds bordered by beautiful .77 ct. t.w. round brilliant-cut diamonds. Finely crafted in polished platinum. 1/4" wide. Diamond and emerald ring. Exclusive, one-of-a-kind Estate Jewelry.
$2,495
A spectacular expression of velvety blue sparkle, this stunning 1.60 ct. t.w. oval sapphire ring is entirely timeless with an enduring spirit. Crafted in polished platinum with round brilliant-cut diamond duos shimmering between each vivid gem. 3/16" wide. Sapphire ring.
$4,595
C. 1980. Swirling into our Estate collection is a powerful and pretty ring. Here, a wave of 1.00 ct. t.w. baguette diamonds crests over the true treasure of the design: a vivacious 1.79 carat oval green tourmaline. Finely crafted in polished platinum. 1/2" wide. Diamond and green tourmaline swirl ring. Exclusive, one-of-a-kind Estate Jewelry.
$1,595
C. 1990. Boasting a beautiful shade of fuchsia, this .57 carat oval ruby ring from our Estate collection casts exceptional sparkle. All around, .15 ct. t.w. round diamonds form a classic halo in polished platinum. 5/16" wide. Diamond and ruby ring. Exclusive, one-of-a-kind Estate Jewelry.
$8,995
C. 1990. A sweet statement for all, but especially September-born ladies, this Estate collection heart pendant necklace shimmers with 1.97 ct. t.w. round brilliant-cut diamonds and a sultry outline of 1.73 ct. t.w. baguette sapphires. Crafted in polished platinum and suspended from a 14kt white gold rope chain. Springring clasp, sapphire and diamond heart pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
$4,495
C. 1980. Classic sparkle meets robust, shimmery red in this dazzling Estate collection ring -- featuring .80 ct. t.w. round diamonds and a bold border of .80 ct. t.w. marquise rubies. Finely crafted in polished platinum. 3/4" wide. Ruby and diamond ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,295
C. 1990. Boasting a classically beautiful halo design, this Estate collection ring presents a fiery .53 carat oval ruby encircled by scintillating .65 ct. t.w. round brilliant-cut diamonds -- with .10 ct. t.w. diamond baguettes that sparkle across the platinum band. 3/8" wide. Diamond and ruby ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,595
C. 1990. Aging like fine wine, this beautiful Estate collection ring showcases the decadent merlot sparkle of a rich 1.65 carat emerald-cut rhodolite garnet. Finely crafted in polished platinum with .55 ct. t.w. round brilliant-cut diamonds arranged in a dazzling double-row design. 5/16" wide. Diamond and rhodolite garnet ring. Exclusive, one-of-a-kind Estate Jewelry.
$5,995
C. 1990. Smoldering with burgundy sparkle, this sophisticated Estate collection ring flashes a 1.80 carat oval pink rhodolite gem sided by striking .70 ct. t.w. triangular trillion-cut diamonds. Finely crafted in polished platinum. 3/8" wide. Diamond and pink rhodolite garnet ring. Exclusive, one-of-a-kind Estate Jewelry.
$5,195
C. 2000. A classic that keeps to tradition, this refined Estate collection ring features a timeless 1.70 carat oval sapphire sided by shimmering .23 ct. t.w. baguette diamonds. Crafted in polished platinum. 5/16" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,395
C. 2000. Breathtakingly beautiful, this Estate collection ring is a dream to call your own. A resplendent 1.70 carat oval sapphire casts incredible deep-blue sparkle from a majestic framework filled with .76 ct. t.w. baguette and round brilliant-cut diamonds. Finely crafted in polished platinum. 5/8" wide. Diamond and sapphire ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,295
C. 1990. From our Estate collection, this dazzling ring glows with a gorgeous 11.8x10mm oval orange opal cabochon. All around, .39 ct. t.w. round brilliant-cut and baguette diamonds articulate a radiant border in polished platinum. 5/8" wide. Diamond and orange opal ring. Exclusive, one-of-a-kind Estate Jewelry.
$6,495
C. 1990. An exquisite emerald heirloom. From our Estate collection, this stunning 4.14 carat kite-shaped emerald pendant necklace showcases a carved floral design that sets it apart. A dazzling frame of .29 ct. t.w. diamonds illuminates the classic gem, all set in polished platinum. Suspends from a 14kt white gold rope chain. Springring clasp, diamond and emerald pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
$7,195
C. 2020. This sparkling Estate collection treasure is one you'll love for life. The eye-catching dome design boasts a bright gemstone trio -- one .45 carat round ruby and two .50 ct. t.w. round brilliant-cut diamonds -- atop a fancy filigree band iced with an additional .30 ct. t.w. round brilliant-cut diamonds. Crafted in platinum. 3/8" wide. Diamond and ruby filigree dome ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,495
C. 1990. The classic duo of diamonds and emeralds is always appealing, as seen on this shimmering Estate collection ring. Verdant emeralds, totaling .81 carats, form a flowery cluster at the center and dot the top and bottom, amid a sparkling backdrop of 1.20 ct. t.w. round brilliant-cut diamonds. Crafted in polished platinum. 1/2" wide. Diamond and emerald cluster ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,495
C. 2000. Simple yet memorable, this Estate collection navette ring is sure to draw lots of compliments! The verdant centerpiece, a 19x7.5mm marquise jade cabochon, is showcased atop a unique platinum band decorated with intricate etchings and openwork detailing. 3/4" wide. Jade navette ring. Exclusive, one-of-a-kind Estate Jewelry.
$2,595
C. 1990. Our elegant Estate collection pendant necklace gives a gorgeous gem the spotlight -- a vivid 4.83 carat oval rhodolite garnet that beams with rich cranberry sparkle. Finely crafted in polished platinum with bright diamond duos at each side of the framework. Suspends from a classic 14kt white gold cable chain. Lobster clasp, rhodolite garnet pendant necklace. Exclusive, one-of-a-kind Estate Jewelry.
$4,395
C. 1990. Though it's decades old, this Estate collection ring will bring a refreshing touch to any outfit! Features a bright 2.37 carat oval green tourmaline centerpiece haloed by .66 ct. t.w. round brilliant-cut diamonds. Crafted in platinum. 1/2" wide. Diamond and green tourmaline ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,795
C. 1990. This verdant splash of color will never fail to liven up an outfit! Just joined our Estate collection, the eye-catching ring presents a rich 1.25 carat oval green tsavorite between sparkling trios of .35 ct. t.w. baguette and round brilliant-cut diamonds. Crafted in platinum. 1/4" wide. Diamond and green tsavorite ring. Exclusive, one-of-a-kind Estate Jewelry.
$3,995
C. 1990. There's a rarified aura around this Estate collection find, first with its luxurious low-profile design and then with the striking hue of its vast 3.91 carat rectangular green tourmaline star. Finely crafted in brushed and polished platinum, the statement ring also shimmers with round diamonds along the edges. 3/8" wide. Green tourmaline ring. Exclusive, one-of-a-kind Estate Jewelry.
$2,995
C. 1950. A sleek style from the Retro era, this Estate collection bar pin alternates bright 1.00 ct. t.w. round sapphires with sparkly .20 ct. t.w. diamonds between decorative platinum openwork. Revolver safety. Diamond and sapphire bar pin. Exclusive, one-of-a-kind Estate Jewelry.
$9,495
C. 1970. Bask in the airy, angelic sparkle of the 92.00 ct. t.w. oval aquamarines stationed across this gorgeous Estate collection necklace. Finely crafted in polished platinum for a cool shine that perfectly complements this lucent gemstone. Extra-long 34" cable chain is clasp free for easy styling. Aquamarine station necklace. Exclusive, one-of-a-kind Estate Jewelry.
$2,995
C. 2020. A sensational .68 carat emerald is the star of this Estate collection ring, while brilliant .76 ct. t.w. diamond baguettes fan out in a beautiful ballerina-style border -- named for the iconic look of the dancer's full tulle skirt. Finely crafted in polished platinum. 1/2" wide. Diamond and emerald ring. Exclusive, one-of-a-kind Estate Jewelry.
$4,795
C. 1990. Brimming with otherworldly beauty, this epic 15x10mm oval opal cabochon ring from our Estate collection showcases an exceptional play of color. Equally as impressive are the .56 ct. t.w. baguette and round brilliant-cut diamond curves that hug the gorgeous main gem. Finely crafted in polished platinum. 5/8" wide. Diamond and opal ring. Exclusive, one-of-a-kind Estate Jewelry.
$2,295
C. 2000. Embrace the power of purple! From our Estate collection, this color-rich cocktail ring is sure to catch your eye with its vivacious 3.15 carat oval amethyst centerpiece. Finely crafted in polished platinum with icy round brilliant-cut diamonds adorning the band. Note the elegant under gallery, featuring swirling openwork that adds to the regal nature of this design. 1/2" wide. Amethyst ring. Exclusive, one-of-a-kind Estate Jewelry.
The best jewelry for women isn't one thing. It's the piece you reach for without thinking — and the one you save for a room that deserves it. Both belong in the same collection. Diamond stud earrings and gold hoops. Cultured pearl strands and gemstone drops. Stackable rings in 14kt gold, eternity bands set with diamonds, statement pieces in deep-colored sapphires, rubies, and emeralds sourced from around the world. Sterling silver for everyday. Platinum for forever. Gold-plated fashion styles that photograph like fine jewelry and wear like a second skin. The range is the point. For over 70 years, Ross-Simons buyers and gemologists have built this collection with a single conviction: that the right piece exists for every woman, every occasion, every version of who she is that day. Estate finds from eras worth revisiting. Italian-crafted chains with the kind of weight that announces itself. Lab-grown diamonds alongside the mined kind — because the choice is yours to make. Over 14,000 styles. One destination. The one that's yours is here.