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7 Carat Platinum Diamond Ring

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.70 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum Weight: 2.8 grams Center Diamond Details Shape: Old European
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

Sophia D 7 Carat Green Sapphire Platinum Art Deco Style Ring w/ Diamond Accents
By Sophia D
Located in Tucson, AZ
Fashioned in 7.5 grams of platinum Size 6 Green Sapphire center 12x10mm estimated 7 carats. This
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Green Sapphire, Platinum

16.83 Ct Natural Sapphire Cabochon Diamond Ring in Platinum Size 7
Located in New York, NY
16.83 Ct Natural Sapphire Cabochon & Diamond Ring in Platinum Size 7 Platinum 15.8 Grams I am
Category

2010s Engagement Rings

Materials

Diamond, Sapphire, Platinum

.64 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum Weight: 4.2 grams Center Diamond Details Shape: Old European
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

1.45 Carat Diamond and Platinum Trilogy Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
platinum ring; part of our diverse diamond jewelry and estate jewelry collections. This impressive diamond
Category

Antique Early 1900s British Three-Stone Rings

Materials

Diamond, Platinum

The Leo Diamond Ring 14K Gold Platinum Marquise cut Engagement
By The Leo Diamond
Located in East Brunswick, NJ
The Leo Diamond Ring 14K Gold Platinum Marquise cut Engagement This gorgeous diamond ring 14K
Category

Late 20th Century Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold, Platinum

GIA Cert 1.02 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This magnificent platinum engagement ring from the 1950s, is centered with a sparkling GIA
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Platinum

GIA Certified 7 Ct. Fancy Yellow Oval Cut Diamond Platinum Ring
Located in Chicago, IL
đź’› 7 Carat Fancy Yellow Oval Diamond Ring đź’› An exquisite GIA Certified 7 carat Fancy Yellow Oval
Category

2010s American Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum

11.76 Carat Aquamarine and 1.45 Carat Diamond, Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 11.76 carat aquamarine and 1.45 carat diamond, platinum cocktail
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

2.09 Carat Opal and Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage 2.09 carat opal and 0.89 carat diamond, platinum cocktail ring; part
Category

1990s Unknown Cocktail Rings

Materials

Diamond, Opal, Platinum

1.31 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 4.9 grams Center Diamond Details: Shape
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.22 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.5 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.25 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: PLATINUM [Tested] Weight: 2.8 grams Center Diamond Details: Weight: 1.25
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.15 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.8 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

C.Dunaigre 7 Carat Paraiba Tourmaline Diamond Ring
Located in Chicago, IL
A remarkable statement of rarity a 7 carat paraiba tourmaline with round brilliant cut diamonds set
Category

2010s American Contemporary Three-Stone Rings

Materials

Diamond, Tourmaline, Paraiba, Platinum

.50 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 3.3 grams Center Diamond Details Shape
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.11 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 3.4 grams Center Diamond Details Shape
Category

Vintage 1920s Unknown Art Deco Wedding Rings

Materials

White Diamond, Platinum

.55 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 5.7 grams Center Diamond Details: Shape
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

7 Carat Fancy Light Yellow Diamond Engagement Ring
By Rare Colors
Located in New York, NY
This remarkable ring centers a 7.01-carat Fancy Light Yellow cushion-cut diamond, GIA certified and
Category

2010s American Modern Engagement Rings

Materials

Yellow Diamond, 18k Gold, Platinum

TIFFANY Co. Platinum 3 Diamond 4mm Wedding Band Ring 7
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum 3 Diamond 4mm Wedding Band Ring 7 Metal: Platinum Size: 7 Weight: 7.60
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

.95 Carat Diamond Platinum Cocktail Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4 grams Center Diamond
Category

Vintage 1910s Unknown Edwardian Cocktail Rings

Materials

White Diamond, Platinum

TIFFANY Co. Elsa Peretti Platinum .02 Diamond Band Ring 7
By Elsa Peretti for Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum .02 Diamond Band Ring 7 Metal: Platinum Size: 7 Band Width
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY Co. Elsa Peretti Platinum .02 Diamond Band Ring 7
By Elsa Peretti for Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum .02 Diamond Band Ring 7 Metal: Platinum Size: 7 Band Width
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 18.66 Carat Emerald Cut Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Exquisite Vivid Diamonds Engagement ring crafted in platinum, showcasing a sensational GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

1.53 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4 grams Center Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.42 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.2 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

3.01 Carat GIA Certified Diamond Platinum Ring
Located in New York, NY
diamonds weighing approximately 0.80ct. The size of the ring is 7 3/4, and can be resized. Inventory
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1.56 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4 grams Center Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

EGL Certified 1.05 Carat Diamond Platinum Engagement Ring
Located in Stamford, CT
Diamond engagement ring. EGL certified center stone in a platinum halo setting with 60 round accent
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Tiffany Jazz Diamond Platinum Ring by Tiffany Co Size 7
By Tiffany Co.
Located in beverly hills, CA
a total diamond weight of 0.62 carats and comes in size 7, offering a classic fit that cannot be
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

1.77 Carat Basaltic Sapphire 1.86 Carat Diamond Platinum Marquise Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
diamond, platinum marquise shape ring; part of our antique jewelry collections. This stunning, fine and
Category

Vintage 1920s Australian Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 3.50 Carat Sapphire Diamond Platinum Ring
Located in Chicago, IL
natural beauty. Mounted in platinum, this timeless piece exudes elegance and refinement. Ring size: 7
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

1.13 Carat Emerald and 1.11 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
, fine and impressive emerald ring with diamonds has been crafted in platinum with an 18k yellow gold
Category

2010s Unknown Contemporary Fashion Rings

Materials

Diamond, Emerald, Yellow Gold, Platinum

Antique and Vintage 5.74 Carat Diamond and Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive stunning 5.74 carat diamond and platinum cluster ring; an addition
Category

Vintage 1960s Cocktail Rings

Materials

Diamond, Platinum

4.00 Carat GIA Sapphire Platinum Diamond Ring
Located in Addison, TX
Brand new sapphire and diamond platinum ring has been custom designed and created to perfection by
Category

2010s Fashion Rings

Materials

Diamond, Sapphire, Platinum

Platinum Sculpture GIA Diamond 2.02 Carats Ring
By Thomas Kurilla Jewelry
Located in New York, NY
. GIA certified Diamond 2.02 Carats. Oval Diamond 9.7 mm x 7..03mm x 4.41 . Made to order, please allow
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 7 Carat VS1 Cushion Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA certified 7 ct cushion cut diamond, boasting an G color grade and VS1 clarity, set upon an
Category

2010s Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

1.53 Carat Ruby and Diamond Platinum Vintage Ring
Located in Miami, FL
This is a Vintage Ruby and Diamond Ring. This ring showcases an unheated, 1.09 carat, oval cut
Category

1990s Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

1.43 Carat Diamond and Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning antique and contemporary 1.43 carat diamond and platinum cluster ring; part of our
Category

Antique Early 1900s Cluster Rings

Materials

Diamond, Platinum

0.56 carat Diamond and 0.86 carat Sapphire Platinum Cocktail Ring
Located in MADRID, ES
This Art Deco-style ring is crafted in platinum 950 and features diamonds and sapphires. It has a
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Harry Winston 5.72 Carat Marquise Diamond Platinum Engagement Ring
By Harry Winston
Located in Chicago, IL
A rare and iconic Harry Winston marquise diamond engagement ring featuring a 5.17-carat Natural
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

7 Carat Tapered Baguette Zig Zag Diamond and Platinum Eternity Band
Located in Chicago, IL
weighing approximately 7.00 carats total. Mounted in platinum, this ring is different than your everyday
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

4.55 Carat Diamond Platinum Long s Engagement Ring
Located in New York, NY
Long's platinum engagement ring, set with center 4.55ct faint brown diamond, set with two tapered
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

1.22 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
1.1 carat diamond solitaire ring has been crafted in platinum. The setting displays a stunning
Category

21st Century and Contemporary British Engagement Rings

Materials

Diamond, Platinum

1.92 carat GIA cert Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring from the Edwardian period is set with a GIA certified old European
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

GRS Switzerland Certified 7 Carat Blue Ceylon Sapphire Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
been made in solid platinum with two highly valuable half moon diamonds both E/F in color and VVS in
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Platinum

1940s 1.73 Carat Diamond and Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage Art Deco style 1.73 carat (total) diamond and platinum cocktail ring
Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Platinum Old Single Cut Diamond 7 Stone Pave Band Ring
Located in Montclair, NJ
Diamonds Total Carat Weight: 0.10 (approx.) Material: Solid .900 Platinum Weight: 2.05 Grams Ring Size
Category

Antique 19th Century Band Rings

Materials

Diamond, Platinum

2.16 Carat GIA Diamond Platinum Engagement Ring
Located in New York, NY
This gorgeous platinum engagement ring is centered with a sparkling GIA certified radiant cut
Category

20th Century Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.01 Carat Diamond Platinum Ring
Located in New York, NY
This charming platinum ring is centered with a sparkling GIA certified emerald cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Peter Suchy 1.37 Carat Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Custom designed diamond wedding band ring. 7 round brilliant cut diamonds, equaling 1.37 carats in
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Charming 0.90 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This elegant platinum ring from the 1920s. is centered with a sparkling round cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 0.23 carat diamond and contemporary platinum solitaire ring; part of our
Category

2010s Contemporary Solitaire Rings

Materials

Diamond, Platinum

4.25 Carat Peridot Diamond Platinum Filigree Engagement Ring
Located in Stamford, CT
Peridot and diamond ring. 4.25ct European cut peridot center stone in a platinum setting with 14
Category

Early 20th Century Engagement Rings

Materials

Diamond, Peridot, Platinum

Art Deco Style 1.78 Carat Diamond and Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.78 carat diamond and platinum cocktail ring; part of our diverse
Category

21st Century and Contemporary Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

Antique 1.86 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning antique 1920's 1.86 carat diamond and platinum solitaire engagement ring; part of our
Category

Vintage 1920s Unknown Solitaire Rings

Materials

Diamond, Platinum

C. Dunaigre 7 Carat Colombian Pear-Cut Emerald and Diamond Ring
Located in Chicago, IL
7 Carat Colombian Pear-Cut Emerald and Diamond Ring in 18K White Gold A striking ring centered
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, 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 rings, vintage 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 rings, vintage 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.