1940s Platinum Diamond Jewelry

2 Carat French Cut Diamond Band

Marquise Earrings Platinum

1940 Cocktail Ring In Platinum

French Tank Rings

1940s Platinum Engagement Ring

18ct Gold Platinum Diamond Ring

Art Deco Ring 1940

1940s Diamond And Sapphire Ring

Category

Vintage 1940s French Art Nouveau Retro Bracelets

Materials

Diamond, Platinum

French 1940s Diamond and Platinum Bracelet

$24,750

Vintage Platinum Diamond Eternity Band 0.32 Carat, circa 1940s

Located in West Hollywood, CA

floral retro design with marquise and round settings. Size 7.5, cannot adjust ring size. Circa 1940's

Category

Vintage 1940s Unknown Retro Bridal Rings

Materials

White Diamond, Platinum

Vintage Platinum Diamond Eternity Band 0.32 Carat, circa 1940s

$2,550

Retro Style Estate Sapphire and Diamond Pin in Platinum, circa 1940s

Located in Chicago, IL

together. Entire pin is a very rare, retro style, circa the 1940's. Entire pin is created in Platinum

Category

Vintage 1940s Unknown Retro Brooches

Materials

Diamond, Blue Sapphire, 14k Gold, Platinum

Retro Style Estate Sapphire and Diamond Pin in Platinum, circa 1940s

$13,500

1940s Platinum and Old European Cut Diamond Engagement Ring H-VS1

Located in West Hollywood, CA

New old stock platinum diamond engagement ring showcasing a stunning 0.51 carat Old European Cut

Category

Vintage 1940s Engagement Rings

Materials

Diamond, White Diamond, Platinum

1940s Platinum and Old European Cut Diamond Engagement Ring H-VS1

$4,375

Vintage Platinum and Diamond Wide Band 0.25 Carat, circa 1940s

Located in West Hollywood, CA

Vintage platinum & diamond 7mm wide eternity band, approx 0.25ct total weight bead-set in pretty

Category

Vintage 1940s Unknown Retro Bridal Rings

Materials

White Diamond, Platinum

Vintage Platinum and Diamond Wide Band 0.25 Carat, circa 1940s

$2,150

Diamond Engagement Ring Platinum 0.91ct Round Brilliant G-VS1, circa 1940s

Located in West Hollywood, CA

Gorgeous vintage platinum engagement ring set with a stunning EGL certified 0.91ct modern round

Category

Vintage 1940s Engagement Rings

Materials

Diamond, Platinum

Diamond Engagement Ring Platinum 0.91ct Round Brilliant G-VS1, circa 1940s

$7,250

1940 s Ruby and Diamond Drop Cocktail Dress Earrings in 18ct Gold and Platinum

Located in Yorkshire, West Yorkshire

Baguette and Brilliant Cut Diamonds in Platinum with a millegrain edge detailing. Topping off these

Category

Vintage 1940s British Art Deco Drop Earrings

Materials

Diamond, Ruby, Gold, Platinum

1940 s Ruby and Diamond Drop Cocktail Dress Earrings in 18ct Gold and Platinum

$12,286

Vintage Platinum Diamond Wide Eternity Band 0.75 Carat, circa 1940s

Located in West Hollywood, CA

Vintage platinum diamond eternity band with lovely marquise and scroll pattern design set with Old

Category

Vintage 1940s Unknown Art Deco Band Rings

Materials

White Diamond, Platinum

Vintage Platinum Diamond Wide Eternity Band 0.75 Carat, circa 1940s

$2,200

1940 s Old Cushion Cut Daisy Cluster Stud Earrings in Platinum

Located in Yorkshire, West Yorkshire

Emanate timeless elegance with these exquisite 1940's Old Cushion Cut Daisy Cluster Stud Earrings

Category

Vintage 1930s British Art Deco Stud Earrings

Materials

Diamond, Platinum

1940 s Old Cushion Cut Daisy Cluster Stud Earrings in Platinum

$53,469

Vintage Diamond Platinum Wide Eternity Band 0.50 Carat, circa 1940s

Located in West Hollywood, CA

Stunning vintage diamond platinum 7.5mm wide eternity band featuring 0.50ct (G-H/I1-I2) bead set

Category

Vintage 1940s Unknown Art Deco Wedding Rings

Materials

White Diamond, Platinum

Vintage Diamond Platinum Wide Eternity Band 0.50 Carat, circa 1940s

$3,100

1940s French Gem Set Diamond Platinum Necklace

Located in London, GB

18ct Gold necklace inlaid with small Diamonds with Platinum setting

Category

Vintage 1940s French Retro More Necklaces

Materials

Diamond, 18k Gold, Platinum

1940s French Gem Set Diamond Platinum Necklace

$4,461

1940s Art Deco Diamond Platinum Band Ring

Located in Potts Point, NSW

-modern cut diamonds all in platinum on a 13.8 mm to 5.5mm tapered band. 8 baguette diamonds are 1.30cts

Category

Vintage 1940s American Art Deco Cocktail Rings

Materials

Diamond, Platinum

1940s Art Deco Diamond Platinum Band Ring

$7,500

Vintage Platinum Five-Stone Diamond Band 0.25 Carat, circa 1940s

Located in West Hollywood, CA

This streamlined platinum prong set diamond band features five full cut round brilliant diamonds

Category

Vintage 1940s Unknown Retro Bridal Rings

Materials

White Diamond, Platinum

Vintage Platinum Five-Stone Diamond Band 0.25 Carat, circa 1940s

$925

1940s Tank 9.2 Carat Diamonds Platinum Clip Retro Brooch

Located in Pamplona, Navarra

Gorgeous diamonds platinum clip brooch. France. Retro or tank style.Circa 1940. Condition: Good

Category

Vintage 1930s French Retro Brooches

Materials

Diamond, Platinum

1940s Tank 9.2 Carat Diamonds Platinum Clip Retro Brooch

$11,298

Vintage Platinum Diamond Wedding Set 0.77 Carat G-VS2, circa 1940s

Located in West Hollywood, CA

Stunning original antique Retro platinum wedding set starring a brilliantly cut 0.77 carat

Category

Vintage 1940s Unknown Retro Engagement Rings

Materials

Diamond, Platinum

Vintage Platinum Diamond Wedding Set 0.77 Carat G-VS2, circa 1940s

$6,000

1940s Blue Sapphire Diamond Yellow Gold Platinum Brooch

Located in Berlin, DE

Europe, around 1940. A very fine craftsmanship. Mounted in 18 carat yellow gold and platinum. With

Category

Mid-20th Century Brooches

Materials

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

1940s Blue Sapphire Diamond Yellow Gold Platinum Brooch

$5,565

1940s Diamond, Gold and Platinum Pendant-Earclips

Located in Atlanta, GA

Pair of Retro 18 Karat Gold, Platinum and Diamond Earclips • 176 round diamonds weighing

Category

Vintage 1940s Retro Dangle Earrings

Materials

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

1940s Diamond, Gold and Platinum Pendant-Earclips

$4,425

1940s 1.85 Carat Transitional Diamond Platinum Engagement Ring

Located in Bellevue, WA

This gorgeous ring dates from the 1940's and features a beautiful 1.85 carat transitional round cut

Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

1940s 1.85 Carat Transitional Diamond Platinum Engagement Ring

$15,999

Vintage Diamond Engagement Ring Platinum 1.61 Old European Cut H-VS1, 1940s

Located in West Hollywood, CA

Stunning Retro design platinum engagement ring set with EGL certified 1.61 carat Old European cut

Category

Vintage 1940s Unknown Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage Diamond Engagement Ring Platinum 1.61 Old European Cut H-VS1, 1940s

$20,500

Engagement Ring Platinum 1.32 Carat Old European Cut Diamond J-SI1, 1940s

Located in West Hollywood, CA

Gorgeous vintage platinum engagement ring set with an EGL certified 1.32ct Old European Cut center

Category

Vintage 1940s Unknown Engagement Rings

Materials

Diamond, White Diamond, Platinum

Engagement Ring Platinum 1.32 Carat Old European Cut Diamond J-SI1, 1940s

$8,275

1940s Platinum and Old European Cut Diamond Engagement Ring 0.72 Carat G-SI2

Located in West Hollywood, CA

Classic platinum engagement ring. Featuring a 0.72 carat Old European Cut diamond center stone, G

Category

Vintage 1940s Engagement Rings

Materials

Diamond, White Diamond, Platinum

1940s Platinum and Old European Cut Diamond Engagement Ring 0.72 Carat G-SI2

$5,275

Classic Vintage Platinum Diamond Engagement Ring 0.50 Carat H-VS2, circa 1940s

Located in West Hollywood, CA

This gorgeous platinum engagement ring features a 0.50ct round brilliant center diamond,H-VS2

Category

Vintage 1940s Unknown Retro Engagement Rings

Materials

Diamond, Platinum

Classic Vintage Platinum Diamond Engagement Ring 0.50 Carat H-VS2, circa 1940s

$2,900

Vintage Engagement Ring Platinum 1.27ct Round Cut Diamond H-VS1, circa 1940s

Located in West Hollywood, CA

This beautiful 1940s platinum engagement ring showcases a bright and lively 1.27ct transitional Cut

Category

Vintage 1940s Retro Engagement Rings

Materials

White Diamond, Platinum

Vintage Engagement Ring Platinum 1.27ct Round Cut Diamond H-VS1, circa 1940s

$13,850

1940s Tank Platinum and 6 Carat Diamonds Double Clip Brooch

Located in Pamplona, Navarra

Magnificent diamond platinum double clip. Tank or retro style. Probably France, circa 1940

Category

Vintage 1930s Unknown Retro Brooches

Materials

Diamond, Platinum

1940s Tank Platinum and 6 Carat Diamonds Double Clip Brooch

$8,378

1940s Cartier Citrine Diamond Gold Platinum Link Bracelet

By Cartier

Located in New York, NY

Cartier: A Gold, Platinum, Citrine and Diamond Bracelet, of openwork design, set with 13 oval

Category

Vintage 1940s British Link Bracelets

Materials

Citrine, Diamond, Gold, Platinum

1940s Cartier Citrine Diamond Gold Platinum Link Bracelet

1940s Art Deco .95 Carat Old Mine Cut Diamond Platinum Engagement Ring EGL

Located in Huntington, NY

This is a 1940s Vintage Art Deco Platinum .95ctw Old Mine Cut Diamond Engagement Ring EGL. This

Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1940s Art Deco .95 Carat Old Mine Cut Diamond Platinum Engagement Ring EGL

$4,070

1940s Antique Art Deco .97 Carat EGL Old European Diamond Solid Platinum Ring

Located in Huntington, NY

This is a 1940s Antique Art Deco Solid Platinum .97ct Old European FG Diamond Ring EGL. This ring

Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1940s Antique Art Deco .97 Carat EGL Old European Diamond Solid Platinum Ring

$3,845

1940s Brooche Antique Yellow Gold 18 Karat and Platinum Diamonds

Located in Valencia, Comunidad Valenciana

Great Combined brooch yellow gold 18 Karats and platinum weight 21 grs. Central diamond brilliant

Category

Vintage 1940s Spanish Retro Brooches

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

1940s Brooche Antique Yellow Gold 18 Karat and Platinum Diamonds

$2,693

Midcentury Platinum and Diamond Wide Eternity Band, circa 1940s-1950s

Located in West Hollywood, CA

diamonds, G/H-SI1-SI2. 6mm wide, size 6.5, cannot adjust. Circa 1940’s – 1950’s. SKU: 42302

Category

Vintage 1950s Unknown Retro Bridal Rings

Materials

White Diamond, Platinum

Midcentury Platinum and Diamond Wide Eternity Band, circa 1940s-1950s

$1,750

1940s Retro Diamond Rose Gold and Platinum Earrings

Located in Beverly Hills, CA

These Retro platinum and 14KT rose gold earrings are set with over four carats of old Mine and

Category

Vintage 1940s American Retro Clip-on Earrings

Materials

Diamond, 14k Gold, Platinum

1940s Retro Diamond Rose Gold and Platinum Earrings

$3,950

1940s 2.5 MM Channel Set Diamond And Platinum Eternity Band

Located in New York, NY

Total Weight. Diamonds Are All Channel Set And Ring Size Is An American 5.5 . Designed In The 1940's In

Category

Vintage 1940s American Band Rings

Materials

Diamond, Platinum

1940s 2.5 MM Channel Set Diamond And Platinum Eternity Band

$2,000

Vintage 1940s Art Deco Ring Diamond and Emerald Platinum

Located in Valencia, Comunidad Valenciana

Beautiful Art Deco ring made of platinum, weight 4.78 grams, nice openwork drawings and exquisite

Category

Mid-20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Vintage 1940s Art Deco Ring Diamond and Emerald Platinum

$4,608

1940s Retro Platinum, 18k Yellow Gold, Diamond, Turquoise Flowers Bouquet Brooch

Located in Pamplona, Navarra

Circa 1940's retro brooch. An artistically designed flowers bouquet. Beatiful cabuchon turquoises

Category

Vintage 1930s Unknown Retro Brooches

Materials

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

1940s Retro Platinum, 18k Yellow Gold, Diamond, Turquoise Flowers Bouquet Brooch

$1,675

Handmade Retro circa 1940s-1950s Platinum Ruby and Diamond Ring

Located in Miami, FL

• Platinum • 2 baguette cut diamonds G-VS1 0.20ctw • 2 round cut diamonds F-VS1 0.30ctw. • 26 round

Category

Mid-20th Century Unknown Retro Engagement Rings

Materials

Diamond, Ruby, Platinum

Handmade Retro circa 1940s-1950s Platinum Ruby and Diamond Ring

$4,500

French Retro 1940s calibré-cut Rubi Diamond Platinum Gold 18 Kts. Tank Bracelet

Located in Madrid, ES

brillant cut-diamonds. It´s made or Platinum and Yellow Gold 18 Kts. French assay marks.

Category

Mid-20th Century French Retro Retro Bracelets

Materials

Diamond, Ruby, 18k Gold, Platinum

French Retro 1940s calibré-cut Rubi Diamond Platinum Gold 18 Kts. Tank Bracelet

$7,181

Platinum Engagement Ring 0.45 Carat Transitional Cut I-VS1, circa 1940s

Located in West Hollywood, CA

1940's. SKU: 26318

Category

Vintage 1940s Unknown Engagement Rings

Materials

White Diamond, Platinum

Platinum Engagement Ring 0.45 Carat Transitional Cut I-VS1, circa 1940s

$2,575

Vintage Engagement Ring Platinum 0.93 Carat Round Brilliant I-SI1, circa 1940s

Located in West Hollywood, CA

This classic vintage platinum engagement ring features a stunning EGL certified 0.93ct round

Category

Vintage 1940s Engagement Rings

Materials

White Diamond, Platinum

Vintage Engagement Ring Platinum 0.93 Carat Round Brilliant I-SI1, circa 1940s

$7,375

Vintage Platinum Engagement Ring 0.79 Carat Round Brilliant F-SI2, circa 1940s

Located in West Hollywood, CA

Gorgeous vintage platinum diamond engagement ring stars a GIA certified bright and fiery 0.79ct

Category

Vintage 1940s Unknown Retro Engagement Rings

Materials

White Diamond, Yellow Diamond, Platinum

Vintage Platinum Engagement Ring 0.79 Carat Round Brilliant F-SI2, circa 1940s

$4,950

Vintage Retro 1930-1940s Dome Ring Emerald 1.46 Carat and Diamonds Platinum

Located in Valencia, Comunidad Valenciana

Fabulous Ring 1930-1940s made in Platinum weight 9.19 grams. It has a body made of 3 threads of 1.5

Category

Mid-20th Century Spanish Retro Dome Rings

Materials

Diamond, Emerald, Platinum

Vintage Retro 1930-1940s Dome Ring Emerald 1.46 Carat and Diamonds Platinum

$2,573

Oscar Heyman Sapphire Diamond Flower Brooch, circa 1940s

By Oscar Heyman

Located in San Francisco, CA

blue step-cut calf's-head sapphires (natural no-heat), centered with natural yellow diamonds; and

Category

Mid-20th Century American Retro Brooches

Materials

Diamond, Sapphire, 18k Gold, Platinum

Oscar Heyman Sapphire Diamond Flower Brooch, circa 1940s

$44,500

Vintage Bracelet 1940s Rose Cut Diamond Yellow Gold 18 Karat and Platinum

Located in Valencia, Comunidad Valenciana

Platinum total weight 12.79 grams. Central chaton of 8 Claws with Diamond in the shape of a Pear Holland

Category

Vintage 1940s Spanish Retro Link Bracelets

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Vintage Bracelet 1940s Rose Cut Diamond Yellow Gold 18 Karat and Platinum

$3,351

1940s Wide Marquis Cut Baguette Cut and Round Cut Diamond Platinum Eternity Band

Located in New York, NY

One Ladies Twist Design Wide Platinum And Diamond Eternity Band With Marquis Cut And Baguette Cut

Category

Vintage 1940s American Band Rings

Materials

Diamond, Platinum

1940s Wide Marquis Cut Baguette Cut and Round Cut Diamond Platinum Eternity Band

$2,550

Retro 1940s Asymmetrical Ruby Diamond 18 Karat Rose Gold Platinum Cocktail Ring

Located in Munich, DE

center stone are 25 round Single Cut diamonds of circa 0.6 carat. These diamonds are set in platinum. On

Category

Vintage 1940s American Retro Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Rose Gold, Platinum

Retro 1940s Asymmetrical Ruby Diamond 18 Karat Rose Gold Platinum Cocktail Ring

$13,644

Stunning 2.30 Ct Diamond Platinum 14k Ruby Cocktail Ring-1940s at its Finest

Located in Santa Rosa, CA

Exceptional example of the Retro Moderne jewelry period... Gemstone: Synthetic Ruby Stone Count

Category

Vintage 1940s Unknown Retro Engagement Rings

Materials

Diamond, Ruby, Platinum

Stunning 2.30 Ct Diamond Platinum 14k Ruby Cocktail Ring-1940s at its Finest

$4,555

Vintage Engagement Ring Platinum .50 Carat Old European Cut H-VS2, circa 1940s

Located in West Hollywood, CA

antique diamond eternity bands, or with a band on either side for a “stacked” look. Circa 1940s. SKU

Category

Vintage 1940s Unknown Engagement Rings

Materials

White Diamond, Platinum

Vintage Engagement Ring Platinum .50 Carat Old European Cut H-VS2, circa 1940s

$2,800

French Retro 1940s Diamond Ring

Located in ALTRINCHAM, GB

French retro 1940s diamond and 18ct gold ring; this is a late Art Deco design and set with 4 big

Category

Vintage 1940s French Art Deco Band Rings

Materials

Diamond, 18k Gold, Platinum

French Retro 1940s Diamond Ring

$4,873

Boucheron Paris Vintage 1940s Diamond Lapis Lazuli Gold Feather Flower Brooch

By Boucheron

Located in Berlin, Berlin

: Understanding Jewellery, Woodbridge 2010, pp. 381-386. MATERIALS 16 diamonds, 8/8 cut, approx. 0,16 ct

Category

Vintage 1940s French Retro Brooches

Materials

Diamond, Lapis Lazuli, 18k Gold, Platinum

Boucheron Paris Vintage 1940s Diamond Lapis Lazuli Gold Feather Flower Brooch

$9,910

Vintage Diamond Engagement Ring 0.45 Carat I-VS1, circa 1940s

Located in West Hollywood, CA

Lovely vintage platinum diamond engagement ring featuring a 0.45ct I-VS1 round brilliant cut

Category

Vintage 1940s Unknown Retro Engagement Rings

Materials

White Diamond, Platinum

Vintage Diamond Engagement Ring 0.45 Carat I-VS1, circa 1940s

$2,550

1940s Mauboussin Retro Diamond Gold Leaf Brooch

By Mauboussin

Located in Milano, IT

A yellow gold and diamond brooch in the shape of two leaves. Signed Mauboussin Paris, 1940 c.a.

Category

Vintage 1940s French Retro Brooches

Materials

Diamond, 18k Gold, Platinum

1940s Mauboussin Retro Diamond Gold Leaf Brooch

$9,900

Diamond Engagement Ring 0.51 Carat Transitional Cut Round Brilliant, 1940s

Located in West Hollywood, CA

Vintage 1940s platinum engagement ring with transitional cut round brilliant 0.51ct F-VS2. One

Category

Vintage 1940s Swiss Engagement Rings

Materials

Diamond, Platinum

Diamond Engagement Ring 0.51 Carat Transitional Cut Round Brilliant, 1940s

$4,850

1940s Wide Diamond Eternity Band Ring 4.3 Carat

Located in Middleton, WI

This vintage platinum diamond eternity band features seven rows of brilliant cut diamonds, for a

Category

Vintage 1940s British Retro Bridal Rings

Materials

Diamond, Platinum

1940s Wide Diamond Eternity Band Ring 4.3 Carat

$15,000

Art Deco Diamond Engagement Ring, Handmade Antique 1940s Ring

Located in Sydney CBD, AU

Platinum Art Deco Diamond engagement ring, lovely handmade Antique 1940s ring. Platinum (acid

Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Diamond Engagement Ring, Handmade Antique 1940s Ring

$3,900

Vintage Diamond and Sapphire Engagement Ring, 1940s

Located in Antwerp, BE

main part being 18K yellow gold and the white parts are either white gold or platinum. Diamond(s

Category

Vintage 1940s Belgian Retro Engagement Rings

Materials

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

Vintage Diamond and Sapphire Engagement Ring, 1940s

$5,924

1940s 1.5 Carat Diamond Engagement Ring with Gradient Shoulders

Located in Brooklyn, NY

This spectacular late Deco ring is fashioned in platinum and dazzles with 1.5ctw of diamonds. The

Category

Vintage 1940s American Art Deco Engagement Rings

Materials

Diamond, Platinum

1940s 1.5 Carat Diamond Engagement Ring with Gradient Shoulders

$12,500

1940s Rene Boivin Multi Gem Diamond Gold Bangle Certificate Françoise Cailles

By René Boivin

Located in Paris, FR

gold, platinum and rose cut diamonds, one has 13 mounted emeralds and the other six blue stones

Category

Vintage 1940s French Art Deco Cuff Bracelets

Materials

Diamond, Emerald, Gold, Platinum

1940s Rene Boivin Multi Gem Diamond Gold Bangle Certificate Françoise Cailles

$83,784

1940s Baroque Pearl and Gemstone Rooster Brooch in 18 Karat Gold

Located in Middleton, WI

diamonds are set in platinum. The pin stem has a trombone style clasp. The brooch measures 55 x 53x 17 mm

Category

Vintage 1940s French Retro Brooches

Materials

Diamond, Emerald, Natural Pearl, Ruby, Blue Sapphire, 18k Gold, Platinum

1940s Baroque Pearl and Gemstone Rooster Brooch in 18 Karat Gold

$14,000

Art Deco Leaf Diamonds Gold Platinum 1940s Brooch

Located in Viana do Castelo, PT

composed of Platinum and 19.2 Karat Portuguese gold, with 12 brilliant cut diamonds with a total weight of

Category

Mid-20th Century Portuguese Art Deco Brooches

Materials

Diamond, Gold, Platinum, 18k Gold

Art Deco Leaf Diamonds Gold Platinum 1940s Brooch

$10,473

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1940s Platinum Diamond Jewelry For Sale on 1stDibs

On 1stDibs, you can find the most appropriate piece of 1940s platinum diamond jewelry for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for an item from our selection of 1940s platinum diamond jewelry from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. There have been many well-made iterations of the classic choice in our collection of 1940s platinum diamond jewelry over the years, but those made by Tiffany Co., Cartier and Van Cleef Arpels are often thought to be among the most beautiful. 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 old european cut and brilliant cut alternatives. Most of our 1940s platinum diamond jewelry for sale are for women, but there are 547 pieces available to browse for men.

How Much is a 1940s Platinum Diamond Jewelry?

The price for a piece of 1940s platinum diamond jewelry starts at $333 and tops out at $750,000 with these rings, on average, selling for $7,658.

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.