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Mid-Century 0.30 CTW Diamond Platinum Vintage Knife Edge Channel Band Ring
Located in Philadelphia, PA
- I/J color with to SI1 clarity Accented my milgrain edge surround Flanked by knife edge shoulders
Category

Vintage 1950s Wedding Rings

Materials

Diamond, Platinum

Tiffany Co. 1.34 Carat Diamond Knife Edge Engagement Ring and Wedding Band
By Tiffany Co.
Located in Bethesda, MD
The ring features a center brilliant cut diamond weighing 1.34 carats. The diamond is I color and
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

3.00ctw Round Brilliant Diamond Ring 14k White Gold Knife-Edge Cluster Cocktail
Located in Greensboro, NC
This ring is a size 8 1/4, but it can be re-sized up 1 size for a $30 fee. Once a ring is re-sized
Category

21st Century and Contemporary Unknown Cluster Rings

Materials

Diamond, 14k Gold, White Gold

18k Yellow Gold Tourmaline Diamond Accent Knife Edge Band Ring Size 6.5
Located in Montclair, NJ
(approx.) (4) Natural Genuine Diamond - Round Brilliant - Burnished Set - White Color - VS2-SI1 Clarity
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold

1950 s J.H. Flyer 0.86 Carat Diamond Platinum Knife Edge Engagement Ring
Located in Philadelphia, PA
brilliant cut diamonds weighing in total approximately 0.06 carat; eye-clean and white Completed by a knife
Category

Vintage 1950s Retro Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco 0.84 Carat Old European Diamond Platinum Knife Edge Engagement Ring GIA
Located in Philadelphia, PA
approximately 0.18 carat total - H color with VS2 clarity. Bead set in knife's edge shoulders with milgrain
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Mid-Century 1.56 Carats Old Mine Cut Diamond Platinum Knife Edge Engagement Ring
Located in Philadelphia, PA
0.24 carat total - eye clean and bright. Bead set in split chevron forms along knife edge shank
Category

Vintage 1950s Retro Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco 0.78 CTW Old European Cut Diamond Platinum Knife Edge Engagement Ring
Located in Philadelphia, PA
bead set with single cut diamonds weighing approximately 0.12 carat Eye clean and bright - with knife
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco 2.17 CTW Old Mine Diamond Platinum Knife Edge Vintage Engagement Ring
Located in Philadelphia, PA
and bright Accented by knife edge shank Tested as platinum Circa: 1930s Ring size: 5 3/4 and sizable
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

18k Gold 2.07ctw GIA Oval Brilliant Ruby Diamond Halo Knife Edge Engagement Ring
Located in Montclair, NJ
central cluster the shank of the ring is also quite unique; it features a knife-edge style which is not
Category

2010s American Engagement Rings

Materials

Diamond, Ruby, 18k Gold

Tiffany Co. Knife Edge Solitaire Round Diamond .64pts G VS2
By Tiffany Co.
Located in Los Angeles, CA
Brand: TIFFANY & CO Metal: Platinum Type: Knife-Edge Ring BuyWeight: 5.30 grams Size: 6
Category

21st Century and Contemporary American Art Deco Solitaire Rings

Materials

Diamond, Platinum

Tiffany Co. Round Brilliant Cut Diamond Platinum Engagement Ring 0.42 Carat
By Tiffany Co.
Located in New York, NY
Pre-owned solitaire diamond ring. Excellent condition! Popular knife edge classic Solitaire diamond
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. the Tiffany Setting Diamond Solitaire Engagement Ring 1.00 Carat
By Tiffany Co.
Located in Mayfair, London, London
symmetry - this is known as a 'triple excellent' diamond. The knife edge ring measures 2mm in width and is
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. 1.37 Carat Diamond Knife Edge Engagement Ring
By Tiffany Co.
Located in Bethesda, MD
The ring features a center brilliant cut diamond weighing 1.37 carats. The diamond is I color and
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

14K Gold RBC .32 HVS2 Diamond Bezel Knife Edge Ring
Located in McLeansville, NC
brilliant cut diamond weighing .32 carat with a knife edge that goes all of the way around. Stones
Category

Vintage 1980s Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Yellow Gold Diamond Engagement Ring - 14k Marquise .68ctw Bow Knife-Edge
Located in Greensboro, NC
Style: Solitaire with Accents Theme: Bow Features: Knife-Edge Band Measurements Face Height (north to
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Tiffany Co. Platinum Princess Cut Diamond Classic Knife Edge Ring, 1.67 Carat
By Tiffany Co.
Located in Los Angeles, CA
Tiffany Platinum Princess cut diamond classic knife edge ring, with 1 princess cut diamond; color
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, Platinum

Platinum Diamond Retro Cluster Engagement Ring Old Cut .65ctw Vintage Knife-Edge
Located in Greensboro, NC
Features: Milgrain Detailing & Knife-Edge Band Measurements Face Height (north to south): 5/16" (7.8mm
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Art Deco Wedding Band Single Cut .12ctw Vintage Knife-Edge Ring
Located in Greensboro, NC
: Milgrain Detailing & Knife-Edge Shoulders Measurements Face Height (north to south): 1/8" (2.9mm) Rise
Category

Vintage 1930s Wedding Rings

Materials

Diamond, Platinum

White Gold Four Prong Knife Edge Solitaire Engagement Ring Princess Cut Diamond
By Concierge Diamonds Inc.
Located in Los Angeles, CA
A classic knife edge, four prong solitaire diamond engagement ring with a 2 carat princess cut
Category

2010s American Modern Solitaire Rings

Materials

Diamond, White Gold

Diamond Platinum "Knife Edge" Eternity Band Ring
Located in Vail, CO
Two-row diamond knife-edge eternity band ring, showcasing near-colorless round diamonds weighing
Category

2010s Band Rings

Materials

Diamond, Platinum

1.20 Carat Old Cut Diamond “Knife Edge” Engagement Ring
Located in Theydon Bois, Essex
tapered baguette set shoulders which seamlessly transition to a ultra fine knife edge platinum shank. The
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Contemporary 18 Carat Yellow White Gold Diamond Knife-Edged Engagement Ring
Located in Hamilton, AU
a gorgeous round brilliant diamond in a claw setting atop knife edge white gold shoulders encrusted
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, White Gold

Chopard Diamond Brown Diamond 18K White Gold Knife Edge Cocktail Ring Size 54.5
By Chopard
Located in Dubai, Al Qouz 2
silhouette with a knife-edge top. The ring exhibits a beautiful assortment of diamonds each placed
Category

2010s Italian Contemporary Cocktail Rings

Materials

Brown Diamond, White Gold

Chopard Diamond Brown Diamond 18K White Gold Knife Edge Cocktail Ring Size 54.5
By Chopard
Located in Dubai, Al Qouz 2
silhouette with a knife-edge top. The ring exhibits a beautiful assortment of diamonds each placed
Category

2010s Italian Contemporary Cocktail Rings

Materials

Brown Diamond, White Gold

Chopard Diamond Brown Diamond 18K White Gold Knife Edge Cocktail Ring Size 54.5
By Chopard
Located in Dubai, Al Qouz 2
silhouette with a knife-edge top. The ring exhibits a beautiful assortment of diamonds each placed
Category

2010s Italian Contemporary Cocktail Rings

Chopard Diamond Brown Diamond 18K White Gold Knife Edge Cocktail Ring Size 54.5
By Chopard
Located in Dubai, Al Qouz 2
silhouette with a knife-edge top. The ring exhibits a beautiful assortment of diamonds each placed
Category

2010s Swiss Contemporary Cocktail Rings

Materials

White Gold

Vintage Circa 1990s 0.26 Carat Round Brilliant Diamond Platinum Knife Edge Band
Located in Hamilton, AU
A diamond embellished knife edge setting crafted runs around the gleaming front of the platinum
Category

20th Century Unknown Modern Band Rings

Materials

Diamond, Platinum

0.57 Carat Tiffany Co. Solitaire Diamond Engagement Ring
By Tiffany Co.
Located in New York, NY
Classic platinum Tiffany knife-edge diamond engagement ring features a 0.57CT round brilliant
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Asscher-Cut Honey Citrine Diamond Gold Platinum Cocktail Ring
By Alexandra Mor
Located in New York, NY
double bands of 1mm knife-edged wire and floating Diamond melee. Ring features 298 1mm round diamonds
Category

Late 20th Century American Contemporary Cocktail Rings

Materials

Citrine, Diamond, 18k Gold, Platinum

Frederic Sage 10.59 Carat Blue Zircon Diamond White Gold Cocktail Ring
By Frederic Sage
Located in New York, NY
KNIFE EDGE SHANK RING Blue Zircon 10.59 CT, 10 Diamonds 0.34 CT, 34 Diamonds 0.31 CT
Category

2010s American Contemporary Cocktail Rings

Materials

Zircon, 18k Gold, White Gold

1.01 Carat Diamond Three-Sided Knife Edge Anniversary Band 14 Karat White Gold
Located in Lambertville , NJ
Diamonds of 1.01 Carats total weight set half way around the tapered, soft knife edge style band. The White
Category

2010s American Contemporary Band Rings

Materials

Diamond, White Diamond, White Gold, 14k Gold

1.01 Carat Diamond Three-Sided Knife Edge Anniversary Band 14 Karat White Gold
Located in Lambertville , NJ
Diamonds of 1.01 Carats total weight set half way around the tapered, soft knife edge style band. The White
Category

2010s American Contemporary Band Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Alexandra Mor Flexible Chain Link Diamond Gold Ring
By Alexandra Mor
Located in New York, NY
karat yellow gold links connected by Alexandra Mor's signature details of knife-edged wire and floating
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, 18k Gold

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Knife Edge Diamond Ring For Sale on 1stDibs

Surely you’ll find the exact knife edge diamond ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Gold, 14k Gold and Platinum — can elevate any look. You can easily find a 4 antique edition and 21 modern creations to choose from as well. You’re likely to find the perfect knife edge diamond ring among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. Finding an appealing knife edge diamond ring — no matter the origin — is easy, but Gregory Mikaelian Sons, Inc., Concierge Diamonds Inc. and Ri Noor each produced a popular version that is worth a look. A knife edge diamond ring can be a stylish choice for most occasions, but Diamond rings, from our inventory of 19, can add a particularly distinctive touch to your look, day or night. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes brilliant cut and princess cut alternatives. There aren’t many items for men if you’re seeking a knife edge diamond ring, as most of the options available are for women and unisex.

How Much is a Knife Edge Diamond Ring?

Prices for a knife edge diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $665 and can go as high as $19,433, while this accessory, on average, fetches $2,550.

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.