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7 Carat Platinum Diamond Ring

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Diamond Solitaire Platinum Engagement Ring
Located in Beverly Hills, CA
This stunning platinum engagement ring from the 1940s centers a prong-set, transitional round
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, Platinum

Vintage 1.04 Carat Sapphire and Round Diamonds in Filigree Platinum Ring
Located in Miami, FL
1.04 Carat Sapphire and Round Cut Diamond in Filigree Platinum Ring. The ring hold a beautiful, eye
Category

21st Century and Contemporary Art Nouveau Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Platinum 3.00 Carat Three-Row Tapered Baguette Diamonds Band Ring
Located in Miami, FL
Vintage Luxurious Platinum ring stamped SDK with approx 3.00 carats total weight of baguettes
Category

Vintage 1980s Unknown Artisan Cocktail Rings

Materials

Diamond, White Diamond, Platinum

Charming Round Cut Diamond Platinum Engagement Ring
Located in New York, NY
This charming platinum ring centers a sparkling round cut diamond that weighs 0.45ct. and is
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 5.35 Carat Oval Eternity Band
By Vivid Diamonds
Located in Miami, FL
Exquisite Vivid Diamonds eternity band crafted in Platinum, showcasing 17 stunning GIA certified
Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, Platinum

Sapphire and Diamond Platinum Ring
Located in Bloomington, MN
Sapphire and Diamond Platinum Ring Introducing this exquisite ring, crafted in platinum with an
Category

Late 20th Century Contemporary Fashion Rings

Materials

Diamond, Sapphire, Platinum

Sapphire and Diamond Platinum Ring
Sapphire and Diamond Platinum Ring
$6,310 Sale Price
20% Off
3.20 Carat Round Brilliant E VS1 Diamond Platinum Full Eternity Band Ring
Located in New York, NY
Title: This elegant platinum full-eternity band showcases 3.20 carats of exceptional E VS1 round
Category

20th Century Band Rings

Materials

Diamond, Platinum

Tanzanite Diamond cocktail ring platinum
Located in Boca Raton, FL
Stunning elegant, luxurious Tanzanite and diamond ring in platinum. Well crafted ring with a
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

4.00 Carat Triangular Tanzanite and Diamond Platinum Double Halo Cocktail Ring
Located in Montreal, QC
Simply Beautiful! Triangular Tanzanite and Diamond Platinum Double Halo Ring. Centering a Securely
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

GIA Certified .73 Carat Round Cut Diamond Raised Tulip Ring Platinum
Located in New York, NY
round diamonds: H-color, Vs-2 clarity. Platinum Ring size: 7 We may resize. Depth of ring: 7.4mm
Category

2010s American Solitaire Rings

Materials

Diamond, Platinum

Diamond Ruby Platinum Cocktail Ring
Located in Los Angeles, CA
Diamond and ruby platinum cluster cocktail ring circa 1960. * ABOUT THIS ITEM: #R-DJ28C. Scroll
Category

Vintage 1960s Modern Cluster Rings

Materials

Diamond, Ruby, Platinum

5.42 Carat Pear Emerald and Diamond Platinum Vintage Statement Cocktail Ring
Located in Montreal, QC
Round Brilliant Cut Diamonds, weighing approx. 0.91 total carat weight. Hand crafted Platinum mounting
Category

Mid-20th Century Modernist Cocktail Rings

Materials

Diamond, Emerald, Platinum

1.28 Carat Diamond and Platinum Solitaire Engagement Ring Art Deco, circa 1935
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 1.28 carat diamond and platinum solitaire style engagement ring; part
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, Platinum

Art Deco 900 Platinum 1.80 Carat VS Sapphire 0.28 Carat Diamond Cluster Ring
Located in Vilnius, Vilniaus apskr.
This is an Art Deco round cluster ring crafted in 900 platinum and 18K gold. Circa 1930. The
Category

Early 20th Century Art Deco Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Emilio Jewelry Certified 2.42 Carat Genuine Emerald Diamond Platinum Ring
By Emilio!
Located in New York, NY
Genuine Emerald 1.79 Carats set in the center. The emerald is very clean and completely eye clean. Center
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Emerald, 18k Gold, Platinum

Contemporary 0.49 Carat Diamond Jelly Opal Platinum Swirl Bypass Cluster Ring
Located in Philadelphia, PA
carat weight. Circa: 2000's. Ring size: 7 and sizable. Measures: North to South. 3.0 mm and sits 6.5 mm
Category

Early 2000s Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Opal, Platinum

GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring
Located in Miami, FL
GIA certified 3.01 carat natural cushion modified brilliant diamond three stone engagement ring in
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Platinum

1.87 Carat GIA Certified Ceylon Sapphire and Diamond Platinum Statement Ring
Located in Montreal, QC
artisanal touch. Hand crafted Platinum mounting. Size 7, we offer ring re-sizing. In excellent condition
Category

Late 20th Century Modernist Cocktail Rings

Materials

Diamond, Sapphire, Platinum

11.68 Carat EGL certified Round Cut Diamond Ring with Diamond Halo in Platinum
By Gad Co.
Located in Miami, FL
carats in baguette-cut diamonds and set in platinum. Ideal for both special occasions and daily wear
Category

Early 2000s Art Deco Cocktail Rings

Materials

Diamond, Platinum

Fancy Yellow Cushion Diamond 3-Row 1.88 Carat Orianne Designer Platinum Ring
Located in San Diego, CA
Fancy Cushion Diamond Ring Style: 3-Row Diamond Ring Metal: 950 Platinum, 9.91 grams Size
Category

2010s Cocktail Rings

Materials

Diamond, Platinum

Rachel Koen Platinum Princess Cut Diamond Wedding Band Ring 0.50 Carat
Located in New York, NY
set diamonds. The total diamond carat weight is 0.50 with G color and SI1 clarity. Band width is
Category

2010s American Modern Band Rings

Materials

Diamond, Platinum

1.39 Carat GIA Certified Old Mine Diamond Sapphire Platinum Engagement Ring
Located in New York, NY
Made of platinum, this ring is centered with a sparkling GIA certified old mine brilliant cut
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co 2.03 Carat Radiant Cut F VS1 Diamond Platinum Engagement Ring
Located in New York, NY
Ring Style: Engagement Metal: Platinum Gemstone 1: 2.03 Carat Diamond Number of Stones: 1 Color: F
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Art Deco Inspired Platinum Diamond 10.77 Carat Australian Opal Engagement Ring
Located in Los Angeles, CA
lustrous 10.77 Carat Australian Opal surrounded by beautiful round and baguette diamonds in a platinum
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Opal, Platinum

Platinum 1.02 Carat Emerald-Cut Emerald and Diamond Cluster Ring, Estate Jewelry
Located in Derby, NY
A striking estate platinum ring centered with a vivid 1.02 carat emerald-cut emerald of lush green
Category

20th Century Modern Cocktail Rings

Materials

Diamond, Emerald, Platinum

Platinum Art Deco Style Diamond GIA 2.01 Carat Vivid Purple Oval Sapphire Ring
Located in Los Angeles, CA
Diamond Engagement Ring. Metal- 90% Platinum, 10% Iridium. Stones- GIA Certified Oval Vivid Purple
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Round Brilliant Cut Diamond Ring (Approx. 0.4-Carats) North-South, Platinum
Located in New York, NY
This exquisite platinum ring showcases two bezel-set round brilliant-cut diamonds at its center
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

One Carat Platinum Diamond Wedding Band
Located in Sugar Land, TX
Diamond Clarity: SI2 Band Material: PLATINUM Diamond Cut: Round Dimensions: 5mm x 19mm Weight: 7 grams
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Peter Suchy GIA Certified 1.25 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Royal blue Sapphire diamond three-stone engagement ring 2.37ct round simple heat only and certified
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, 14k Gold, White Gold, Gold, Platinum

Diamond U Setting Eternity Band Set in Platinum
By Diamond Scene New York
Located in New York, NY
around -- full of fire and brilliance. platinum "u setting" mounting The ring will fit a size 6.75 -7
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, White Diamond, Platinum

3.98 Carat Royal-Blue Ceylon Sapphire Diamond Platinum Ring, GRS Certified
Located in Beverly Hills, CA
A superb richly colored sapphire takes center stage of this platinum diamond ring. The sapphire
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco 2.05 Carat Emerald and Diamond Platinum Statement Cocktail Ring
Located in Montreal, QC
, accented by OEC Diamonds, weighing approx. 0.38tcw. Hand crafted Platinum mounting. Ring size 7, we offer
Category

Mid-20th Century Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Natural 3.04 Carat Radiant Cut Diamond Platinum Engagement Ring In Stock
Located in Boca Raton, FL
Platinum 3.04ctw Radiant Cut Diamond Engagement Ring with side Trapezoids Material: Platinum Main
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Vintage 41.84 Carat Green Peridot GIA and Diamond Platinum Statement Ring
Located in Montreal, QC
Hand-crafted Platinum mounting. Ring size: 7, we offer resizing. GIA report #2239192339. The ring
Category

Late 20th Century Modernist Cocktail Rings

Materials

Diamond, Peridot, Platinum

Tiffany Co 2.03 Carat Radiant Cut F VS1 Diamond Platinum Engagement Ring
Located in New York, NY
Engagement Ring Style: Engagement Metal: Platinum Gemstone 1: 2.03 Carat Diamond Number of Stones: 1
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

2.4 Carat Diamond Whirlpool Platinum Cocktail Ring with Blue Zircon, circa 1960
Located in Sherman Oaks, CA
designation, meaning 90% platinum and 10% iridium. Weights: Ring weight: Estimated diamond weight
Category

Mid-20th Century American Retro Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Platinum

Gem Emerald Diamond Platinum Ring
Located in Beverly Hills, CA
A superb gem quality emerald sits proudly atop this platinum ring. It weighs 2.47 carats and has a
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Emerald, Platinum

1.47 Carat Oval Pink Spinel and Diamond Platinum Ring by Merkaba Beverly Hills
By Merkaba
Located in Beverly Hills, CA
designs tailored to your vision. This 1.47-carat Pink Spinel platinum ring, adorned with diamonds, is the
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Spinel, Diamond, White Diamond, Multi-gemstone, Platinum

1.16 Carat Old European Cut I VS2-VS1 Diamond Platinum Engagement Ring
Located in New York, NY
Title: 1.16 Carat Old European Cut I VS2-VS1 Diamond Platinum Engagement Ring Style: Engagement
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Old Euro Diamond Prong Engagement Ring (GIA Approx. 0.80-Carats), Platinum
Located in New York, NY
This exquisite engagement ring showcases a GIA-certified approx. 0.80-carat old European cut
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Leo Princess Brilliant Cut Diamond Solitaire Engagement Ring
By The Leo Diamond
Located in Chicago, IL
shank and a 950 Platinum head. Weighing 4.5 grams and sized 7, the ring features a central Natural Leo
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Edwardian 1.04 Carat Old European Brilliant Cut Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 2.2 grams Center Diamond Details Shape
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

Vintage Old European Cut Diamond Ring (Approx. 3.60-Carats) Engagement, Platinum
Located in New York, NY
This exquisite vintage French engagement ring showcases a breathtaking approx. 3.60-carat old
Category

Vintage 1940s French Retro Engagement Rings

Materials

Diamond, Platinum

Aquamarine Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
diamonds set in its side. Set in platinum. Ring Size: 7
Category

21st Century and Contemporary American Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Platinum Ring Tapered Baguette Diamonds 6.21 Carat Gem Ceylon Cabochon Sapphire
By OGI Ltd
Located in New York, NY
enhance the ring's allure. With a combined weight of 0.35 carats, these diamonds exude sophistication and
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Cabochon Ruby Diamond Platinum Ring
Located in Beverly Hills, CA
A simply yet elegant ring featuring a luscious 4.30 carat cabochon ruby. It is a pleasing bright
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Ruby, Platinum

Art Deco Platinum Diamond Solitaire Ring
Located in Braintree, GB
Art Deco Platinum Diamond Solitaire Ring An elegant platinum ring featuring a central diamond
Category

2010s Art Deco Solitaire Rings

Materials

Diamond, Platinum

1.90 Carat Old European Cut J VVS1-VVS2 Diamond Platinum Engagement Ring
Located in New York, NY
Title: 1.90 Carat Old European Cut J VVS1-VVS2 Diamond Platinum Engagement Ring Style: Engagement
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Art Deco 18 Carat Gold and Platinum Triple Cluster Diamond Ring
Located in Chipping Campden, GB
. The ring is modelled in 18 carat yellow gold and the stones are set in platinum. Ring Size O or 7
Category

Antique Early 19th Century Unknown Art Deco Cluster Rings

Materials

Diamond, 18k Gold, Gold, Platinum

Art Deco Platinum .89 Carat Old European Cut Diamond Engagement Ring
Located in Cape May, NJ
Era: Art Deco Hallmarks: 100 IRID Composition: Platinum Primary Stone: Old European Cut Diamond
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Cabochon Emerald Diamond Platinum Ring
Located in Beverly Hills, CA
marquise and baguette-cut diamonds set down the sides of the ring. Hand-fabricated in platinum and ready to
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Emerald, Platinum

Pink Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
of the ring. Hand-fabricated in platinum. Ring Size 7
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Pink Sapphire, Platinum

Diamond Ruby Platinum Cocktail Ring
Located in New York, NY
A beautiful cocktail ring decorated with a 2-carat emerald-cut diamond that's equivalent to K color
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Ruby, Platinum

9 Carat Diamonds VS Quality Dome Shape Cocktail Platinum and Gold Ring Estate
Located in New York, NY
9 carat Diamonds VS quality Dome shape cocktail Platinum and Gold Ring estate This is a Dome
Category

Early 2000s Cocktail Rings

Materials

Diamond, 18k Gold, Platinum

David Webb 17 Carat Burma Cabochon Sapphire Diamond 1950s Platinum RIng
By David Webb
Located in New York, NY
diamonds The estimated total diamond weight is approximately 5 carats. Signed on inside of the shank " Webb
Category

Vintage 1950s American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Platinum Diamond Ring
Located in Beverly Hills, CA
This exquisite Art Deco platinum ring from the 1920s features an intricate openwork design
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Platinum

Aquamarine Diamond Cocktail Ring Platinum
Located in Bradenton, FL
approximately 7 carats, in a four-prong setting. The shoulders are each accented with a bow design details and
Category

Mid-20th Century Modern Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

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7 Carat Platinum Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 7 carat platinum diamond ring for your needs in our varied inventory. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Making the right choice when shopping for a 7 carat platinum diamond ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Creating a 7 carat platinum diamond ring has been a part of the legacy of many jewelers, but those produced by LB Exclusive, Tiffany Co. and Roman Malakov are consistently popular. See these pages for a round cut iteration of this accessory, while there are also emerald cut cut and old european cut cut versions available here, too. If you’re browsing our inventory for a 7 carat platinum diamond ring, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 7 Carat Platinum Diamond Ring?

Prices for a 7 carat platinum diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $19 and can go as high as $475,940,000, while this accessory, on average, fetches $10,497.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.