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J. Birnbach GIA Certified 4.81 Carat H SI1 Oval Three-Stone Ring
By J. Birnbach
Located in New York, NY
, platinum ring with a pair of half moons = 1.50 ctw (approximately) this ring is a scintillating piece of
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

1925s Art Deco Diamonds 18 Karat Yellow Gold Platinum Hexagonal Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold and platinum. This elegant Art Deco diamond ring features a hexagonal
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

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

Pink Sapphire Diamond Platinum Certificated Ring
Located in Greenwich, CT
flanked by two half moon shaped diamonds weighing approximately 1.41 carats. Truly an incredible sapphire
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Art Deco 1930 American Ring In Platinum With 28.13 Cts In Sapphire And Diamonds
Located in Miami, FL
bezel settings, with 2 half moon faceted cut diamonds, 0.24 carats, H color, SI-1 clarity. Diamonds
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Star Sapphire, Platinum

1.52ct GIA Fancy Yellow VVS2 Oval and Halfmoon Ring
By J. Birnbach
Located in New York, NY
This classic 1.52ct VVS2 clarity fancy yellow oval diamond is flanked by two white diamond half
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Diamond, 18k Gold, Platinum

3.63ct Fancy Yellowish Green Oval VS2 GIA Ring
By Rare Colors
Located in New York, NY
set in Platinum and Rose Gold with Fancy Intense Pink Diamond Pave and colorless Half Moons
Category

2010s Cocktail Rings

Materials

Rose Gold, Platinum

3.63ct Fancy Yellowish Green Oval VS2 GIA Ring
By Rare Colors
Located in New York, NY
set in Platinum and Rose Gold with Fancy Intense Pink Diamond Pave and colorless Half Moons
Category

2010s Cocktail Rings

Materials

Rose Gold, Platinum

5.05 ct "Royal Blue" Sapphire Diamond ring
By Hakimi s Gem
Located in Chicago, IL
stating the origin of Ceylon and heat only. The sapphire is set with two half-moon diamonds weighing .60
Category

2010s Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

8.59ct No-Heat Ceylon Sapphire Diamond Ring
Located in Palm Beach, FL
flanked by two half moon-shaped diamonds, in a platinum setting. Two diamonds weighing 0.55 total carats
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Sapphire, Platinum

5.05 Carat Ceylon Sapphire Diamond Ring
By Hakimi s Gem
Located in Chicago, IL
. The diamonds are carefully selected to perfectly complement the sapphire, two half-moon diamonds
Category

2010s Fashion Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 2.45 Carat Blue Sapphire Diamond Ring Handmade
By H H Jewels
Located in Miami, FL
two step cut diamond half moons that are on both sides. The sparkling diamonds have a total weight of
Category

2010s American Cocktail Rings

Materials

Blue Sapphire, Diamond, Platinum

Certified Burmese Ruby Pigeon Blood Three Stone Diamond Engagement Ring
By Alberto
Located in GREAT NECK, NY
9.1 x 7.5 x 5 millimeters See images for three certificates Diamond Details: 2 Half Moon Diamonds at
Category

2010s American Contemporary Three-Stone Rings

Materials

Diamond, Ruby, Platinum

Scarselli 20 Carat Fancy Intense Yellow Diamond Ring
By SCARSELLI
Located in New York, NY
information), and set in a hand-made 18k yellow gold and platinum. This oval stone is guarded by side half
Category

2010s American Contemporary Engagement Rings

Materials

White Diamond, Yellow Diamond, Platinum, 18k Gold

5.44 Carat Fancy Yellow Diamond Three-Stone Ring
Located in Princeton, NJ
fancy-cut half moon diamonds. Handcrafted in 18k gold and precious platinum.
Category

2010s Three-Stone Rings

Materials

Diamond, Platinum

Unheated Padparadscha Sapphire Gemstone 1.61 cts in Platinum Ring w 18KRG Dia
Located in Los Angeles, CA
, giving the stone an impressive and balanced presence. Side Stones: Diamonds Quantity: Two half-moon
Category

21st Century and Contemporary Malagasy Three-Stone Rings

Materials

Diamond, Sapphire, Padparadscha Sapphire , 18k Gold, Rose Gold, Platinum

Orloff of Denmark, 3.13 Carat Pastel Blue Sapphire Diamond Ring set in 950Plat
Located in Hua Hin, TH
(Ceylon) decorated with 2 pcs. half moon diamonds 0.34 carat VVS, F color on each side. This Ceylon
Category

2010s Sri Lankan Engagement Rings

Materials

Blue Sapphire, Diamond, Platinum

GIA Certified 8.23 Carat Sapphire Diamond Domed Cocktail Ring
Located in Greenville, DE
and weighing 8.23cts and is GIA certified. The sapphire is flanked by (2) half moon shaped diamonds
Category

21st Century and Contemporary Cocktail Rings

Materials

Sapphire, Platinum

AGL Certified 13.55 Carat Sapphire and Diamond Cocktail Ring
By Roman Malakov
Located in New York, NY
yellow orange in color (VVS clarity). Flanking the gorgeous center stone are half-moon diamonds each
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

GIA Certified Unheated 12.23 Carat Ceylon Blue Sapphire and Diamond Ring
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This platinum ring features a rare, natural color, gem Ceylon blue sapphire set with two half-moon
Category

21st Century and Contemporary American Artisan Three-Stone Rings

Materials

White Diamond, Blue Sapphire, Diamond, Sapphire, Platinum

GIA Certified 10 Carat No Heat Paraiba Tourmaline Diamond Three-Stone Ring
By Antinori Fine Jewels
Located in Chicago, IL
Amazing natural Gia certified authentic paraiba tourmaline with two side half moon natural diamonds
Category

2010s Italian Modern Cocktail Rings

Materials

Diamond, Tourmaline, Paraiba, Platinum

Diana M. 18 kt white gold tourmaline and diamond ring featuring a 5.62 ct oval
By Diana M. Jewels
Located in New York, NY
18 kt white gold tourmaline and diamond ring featuring a 5.62 ct oval cut pink tourmaline with two
Category

21st Century and Contemporary North American Modern Three-Stone Rings

Materials

Tourmaline, 18k Gold

French 1960s Sapphire Diamonds 18 Karat White Gold Daisy Ring
Located in Poitiers, FR
place by 4 claws, surrounded by modern brilliant-cut diamonds in half-moon and seed settings. The basket
Category

Vintage 1960s French Retro Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White G...

Sophia D 6.48 Carat Yellow Sapphire and Diamond Ring
By Sophia D
Located in New York, NY
A Sophia D platinum ring featuring a 6.48 carat yellow sapphire center stone accented with 2 half
Category

2010s Cocktail Rings

Materials

Diamond, Yellow Sapphire

Vivid No Heat Madagascar Blue Sapphire Diamond Ring
Located in San Francisco, CA
stone is a 4.07 carat oval mixed cut blue sapphire flanked with half-moon shape brilliant cut diamonds
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Blue Sapphire, Diamond, Platinum

Art Deco Natural Ruby and Diamond Ring, circa 1920s
Located in London, GB
small half moon cut rubies at the corner of the ring, settled between the two halos. The ring is all
Category

Vintage 1920s Unknown Art Deco Cluster Rings

Materials

Diamond, Ruby, Platinum

AGL Certified 16.99 Carat Blue Sapphire Ring
Located in New York, NY
Certified Oval Blue Sapphire weighing 16.99 carats, set in a Handmade Platinum Ring with 2 Half
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Platinum

10.76 Carats AGL Cert Natural No Heat Blue Sapphire Diamond Three-Stone Ring
Located in Miami, FL
flanked by a pair of half moon genuine Diamonds, cumulatively weighing 0.96ct, graded H-I color and VS1
Category

Vintage 1980s Unknown Three-Stone Rings

Materials

Sapphire, Platinum

6.14 Carat Ceylon Sapphire Ring
Located in Miami, FL
by 2 Half Moon Cut Diamonds Weighing 1.06cts Total, G Color, VS Clarity. This ring is stamp and
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Blue Sapphire, Diamond, Platinum

Peter Suchy Oval Diamond Half Moon Triple Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
, Ideal full cuts. Half moon sides with a partial diamond halo ring. One oval diamond, approx. total
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Cabochon Ruby Half Moon Diamond Baguettes Platinum Ring
Located in Stamford, CT
Original Modernist 1950’s Platinum ring cocktail era, with half-moon diamond accents and a bright
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Ruby, Platinum

A Platinum 7.56 CTS Ceylon Sapphire and Half Moon Diamond Ring
Located in New York, NY
The platinum three-stone 7.56 CTD Ceylon oval sapphire and half-moon diamond ring is the epitome of
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Estate 3.47 Carat Sapphire Half Moon Diamond Platinum Ring
Located in Napoli, NA
Platinum, Sapphire and Diamond Ring, set in the center with a Beautiful oval-cut Sapphire weighing
Category

Late 20th Century Cluster Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 2.52 Carat Oval Natural Alexandrite Diamond Platinum Ring
Located in Houston, TX
changing to Grayish Purple. It is set in a diamond halo with two stunning half moon diamonds on either side
Category

21st Century and Contemporary American Fashion Rings

Materials

Alexandrite, Diamond, Platinum

GIA Certified 7.30 Carat Oval Sapphire and Diamond Ring
Located in New York, NY
Centered upon an Oval shaped Sapphire weighing 7.30 Carats and flanked with half moon Diamonds and
Category

2010s American Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA 4.14 Carat Estate Colombian Green Oval Emerald Diamond 3-Stone Ring
Located in New York, NY
lifetime! A very ELEGANT and CLASSY ESTATE vintage Oval Emerald Diamond ring in Platinum made in last
Category

2010s Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Scarselli Engagement Ring 7 Carat Fancy Yellow Oval Diamond GIA Certified
By SCARSELLI
Located in New York, NY
6177522925 (see picture for details of the stone) . The center diamond is accompanied by two white half-moon
Category

2010s American Contemporary Engagement Rings

Materials

White Diamond, Yellow Diamond, 18k Gold, Platinum

Harry Winston GIA Certified 5.01 Carat E VS1 Oval Brilliant Diamond Ring
By Harry Winston
Located in New York, NY
carat oval brilliant diamond of E color and VS1 clarity. Beautifully outlined with no fluorescence, this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

2.50 Carat, Platinum, Gold, Fancy Intense Yellow Diamond and Diamond Ring
Located in New York, NY
18 kt., one oval Fancy Intense Yellow diamond ap. 2.50 cts., 2 half-moon shaped diamonds ap. 1.00
Category

20th Century American Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

GIA 4.40ct Estate Vintage Oval Diamond 3 Stone Engagement Wedding Ring Plat/18k
Located in New York, NY
Estate HANDMADE 18k Yellow Gold/Platinum (stamped) Oval Diamond Three-Stone Engagement ring contains GIA
Category

2010s American Modern Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

IGI Certified 2.48 Carat Natural/No Heat Padparadscha Sapphire Ring in Platinum
Located in Palm Beach, FL
Carats (total weight) half moon diamonds. Set in Platinum.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

19.98 Carat No Heat Yellow Sapphire Diamond Platinum Ring Estate Fine Jewelry
Located in Montreal, QC
has NOT been heated. Enhanced with Hand set two long half moon diamonds approx. 0.85tcw. Hand crafted
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Yellow Sapphire, Platinum

Certified Padparadscha Orange Pink 8.50 Carat Oval Solitaire Ring
By Antinori Fine Jewels
Located in Chicago, IL
certified half moon diamonds set in 18 carats yellow gold and platinum
Category

2010s Italian Modern Engagement Rings

Materials

Sapphire, Pink Sapphire, Padparadscha Sapphire , 18k Gold, White Gold, Y...

GIA Certified 9.40 Carat No Heat Paraiba Tourmaline Diamond Three-Stone Ring
By Antinori Fine Jewels
Located in Chicago, IL
Amazing natural Gia certified authentic paraiba tourmaline with two side half moon natural diamonds
Category

2010s Italian Modern Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

Important 20.42 Carat AGL Graded Unheated Burma Sapphire Diamond Ring
Located in Miami, FL
sapphire oval flanked by 2 half moon brilliant cut diamonds weighing 1.10ct total F color and VS clarity
Category

21st Century and Contemporary American Modern More Rings

Materials

Blue Sapphire, Diamond, White Diamond, Platinum

Contemporary 2.80 CTW Sapphire Diamond Gemstone Ring
Located in Philadelphia, PA
by half moon forms pavè set with round brilliant cut diamonds Weighing in total 0.30 carat with G/H
Category

21st Century and Contemporary Cocktail Rings

Materials

Platinum

Platinum Diamond Ring
Located in Sarasota, FL
Platinum Ring with 3.65 carat GIA certified I color oval diamond and 2 blue sapphire half moons
Category

2010s Engagement Rings

Materials

Diamond, Sapphire, Platinum

5.20 Carat Oval Pink Sapphire and Diamond Platinum and 18k Yellow Gold Ring
By David Gross Group
Located in New York, NY
5.20 carat oval pink sapphire with two half moon diamonds weighing .61 carats and twelve brilliant
Category

2010s American Contemporary Fashion Rings

Materials

White Diamond, Pink Sapphire, Yellow Gold, Platinum

5.10 Carat Oval Red Ruby and Diamond Ring
By David Gross Group
Located in New York, NY
5.10 carat oval red ruby with half moon diamonds .65 carats set in a ring. Size 7
Category

2010s Mozambican Contemporary Three-Stone Rings

Materials

White Diamond, Ruby, Platinum

Platinum AGL Certified 5.18 Carat Ceylon Sapphire Ring
Located in Sarasota, FL
Platinum Ring with one AGL certified 5.18 carat Ceylon Sapphire an two half moons weighing 0.80
Category

2010s Three-Stone Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

10.07 Carat Oval GIA Set with Half Moons in Platinum Ring Mounting
Located in New York, NY
Hand Crafted Platinum Mounting with a 10.07 Carat Oval Shape Diamond in the Center and Two Half
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

8.08 Carat Oval Shape is set in Platinum Ring with Half Moons.
Located in New York, NY
, filled with life and so Brilliant, is set in Platinum Ring mounting with a Pair of Half Moons. The Side
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

HPHT Oval Diamond in Platinum
Located in Los Angeles, CA
mankind conspires with nature. The two half moon side stones are natural white diamonds to complete the
Category

20th Century Contemporary Bridal Rings

Materials

Diamond, Platinum

5.08 Carat No-Heat Ceylon Sapphire Platinum Diamond Ring, GIA
Located in San Francisco, CA
a pair of sparkling half-moon diamonds (1.00 carats total), further accented with tiny full-cut
Category

21st Century and Contemporary Unknown Modern Solitaire Rings

Materials

Diamond, Sapphire, Platinum

6.02 Carat GIA Cert Oval Diamond Platinum Ring
By JB Star
Located in Dallas, TX
This stunning platinum ring set features an oval brilliant cut diamond weighing exactly 6.02 carats
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

White Diamond, Platinum

2.53 Carat GIA Cert Oval Diamond Platinum Engagement Ring
Located in Columbia, MO
certificate number: 13447089. The ring also features two half moon cut diamonds with a total carat weight
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Oscar Heyman Brothers 4.15 Carat Thai Oval Ruby Diamond Platinum Ring
By Shreve, Crump Low
Located in Chestnut Hill, MA
Platinum oval ruby and diamond ring set with one l Thai ruby weighing 4.15 carats and 2 half moon
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Ruby, White Diamond, Platinum

1.55 Carat Oval Diamond GIA Certified Set in Platinum Ring Mounting
Located in New York, NY
This Beautiful Long 1.55 Carat Oval Diamond is set in platinum Mounting with Two Half Moon Diamonds
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

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Diamond Platinum Oval Half Moons For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of diamond platinum oval half moons. All of the items for sale were constructed with extraordinary care, often using Platinum, 18k Gold and Gold. Our collection of these items for sale includes 3 vintage editions and 11 modern creations to choose from as well. Our collection is diverse and broad-ranging, and pieces in stock date back to the 20th Century while others were produced as recently as the 21st Century. The designs in our inventory of diamond platinum oval half moons bearing Contemporary hallmarks are very popular. There have been many well-made iterations of these items over the years, but those made by Peter Suchy, J. Birnbach and JB Star are often thought to be among the most beautiful. There are many oval cut diamond platinum oval half moons for sale. When shopping our range of diamond platinum oval half moons, you’ll find that there are less available pieces for men today than there are for women.

How Much are Diamond Platinum Oval Half Moons?

On average, diamond platinum oval half moons at 1stDibs sell for $55,000, while they’re typically $12,500 on the low end and $292,000 for the highest priced versions of this item.

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.