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Art Deco Old European 1.34 Carats Diamond 18 Karat Octagonal Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing 1.34 carat total - J color with SI1 clarity. Bead
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Octagonal Engagement Ring, Platinum & Diamonds (French art-deco)
Located in PARIS, FR
to this remarkable piece. Octagonal Art Deco rings are iconic representations of 1920s-1930s jewelry
Category

Mid-20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Octagon Ruby and Diamond Halo Pendant in 14k Yellow Gold
By VR Jewels
Located in New York, NY
Art Deco Octagon ut Ruby and Diamond Halo Pendant in 14K Gold studded with octagon cut ruby. This
Category

21st Century and Contemporary American Art Deco Pendant Necklaces

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

Art Deco Style White Diamond Ruby Octagon Cut Citrine Yellow Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
Octagon Cut Citrine. This Ring is inspired by Art Deco. Size ITA: 15 USA: 7 and 1/4 We're a workshop so
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

Ruby, White Diamond, Diamond, Citrine, Yellow Gold, 14k Gold

Ruby and Diamond Art Deco Style Octagon Engagement Ring in 18K White Gold
Located in Bangkok, TH
hand pierced. Ring Information Style: Art-deco Metal: 18K White Gold Weight: 4.50 g. (approx. total
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Ruby, Diamond, White Gold, 18k Gold

Vintage Art Deco Diamond Onyx Ring Platinum Filigree Octagon Jewelry
Located in Torrance, CA
Elegant & finely detailed Art Deco era ring (circa 1920s to 1930s) crafted in 900 platinum. Old
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Onyx, Platinum

Art Deco Octagon May Birthstone Emerald Diamond Halo Ring in 18k Yellow Gold
By VR Jewels
Located in New York, NY
Art Deco Octagon May Birthstone Emerald Diamond Halo Ring in 18K Gold featuring natural emerald of
Category

21st Century and Contemporary American Art Deco Wedding Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold

GIA 1.64 Carat Octagonal Sapphire Diamond Art Deco Platinum Dangle Earrings
Located in Stamford, CT
Art Deco sapphire and diamond dangle drop earrings. These 1920's dangle earrings are made up of 2
Category

Early 20th Century Dangle Earrings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Antique Art Deco Platinum 0.73ctw Old Cut Diamond Filigree Octagonal Ring
Located in Montclair, NJ
: 5.2mm rise off the finger Condition: Antique, Art Deco. Excellent condition! Stock Number: MK-78082534
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, Platinum

Art Deco 1.26 Carat Octagon Cut Emerald Diamond Halo Pendant White Gold 18 Karat
By VR Jewels
Located in New York, NY
Art Deco Emerald Diamond Halo Pendant in 18K Gold studded with octagon cut emerald. This stunning
Category

21st Century and Contemporary American Art Deco Pendant Necklaces

Materials

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

Diamond and Octagon Onyx Art Deco Style Ring in 14K Yellow Gold
Located in Bangkok, TH
A stunning, fine and impressive Art Deco style diamond and onyx halo ring. An approx. 0.04 carats
Category

21st Century and Contemporary Thai Art Deco Cluster Rings

Materials

Onyx, Diamond, Yellow Gold, 14k Gold

Diamond and Octagon Onyx Art Deco Style Ring in 14K White Gold
Located in Bangkok, TH
A stunning, fine and impressive Art Deco style diamond and onyx halo ring. A total of .28 carats of
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Onyx, Diamond, White Gold, 14k Gold

Antique Art Déco Octagonal Diamond & Coral Platinum Cocktail Ring, France c 1930
Located in Vienna, AT
Delicate antique diamond ring in octagonal shape with a central diamond in old brilliant cut
Category

Vintage 1930s French Art Deco Cluster Rings

Materials

Diamond, Coral, Platinum

Diamond and Sapphire Art Deco Style Octagon Pendant in 14k Two Tone Gold
Located in Bangkok, TH
traditional Art Deco style. To the center of the pendent sits a round brilliant cut diamond which are
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, Gold, 14k Gold

Ruby and Diamond Art Deco Style Octagonal Engagement Ring in 18k White Gold
Located in Bangkok, TH
This stunning Art Deco-style engagement ring combines the fiery allure of a ruby with the
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Ruby, Diamond, 18k Gold, White Gold

Diamond and Emerald Art Deco Style Octagon Shaped Pendant in 14K White Gold
Located in Bangkok, TH
Striking design with a central diamond surrounded by an outer accent of round diamonds. Inside the
Category

21st Century and Contemporary Unknown Art Deco Pendant Necklaces

Materials

Diamond, Emerald, White Gold, 14k Gold

Diamond and Emerald Octagonal Shape Art Deco Style Ring in 18K White Gold
Located in Bangkok, TH
timeless and unique style. Ring Information Style: Art-deco Metal: 18K White Gold Total weight: 3.78 g
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Art Deco Style White Diamond Octagon Cut Emerald Onyx Yellow Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
Brilliant Cut Diamonds. This Ring has a 2.92 Carats Natural Octagon Cut Emerald. This Ring has also Handcut
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

Onyx, Emerald, White Diamond, Diamond, Yellow Gold, 14k Gold

Diamond and Onyx Art Deco Style Octagon shaped Drop Earrings in 9K Yellow Gold
Located in Bangkok, TH
A stunning, fine and impressive Art Deco style diamond and onyx halo drop earrings. An approx. 0.07
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Diamond, Onyx, 9k Gold, Yellow Gold

Art Deco Style White Diamond Octagon Cut Emerald Onyx Yellow Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
Carats of White Brilliant Cut Diamonds. This Ring has a 3.23 Carats Natural Octagon Cut Zambia Emerald
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Emerald, Onyx, 18k Gold, White Gold, Yellow Gold

Art Deco Style White Rose Cut Diamond Octagon Cut Emerald Yellow Gold Ring
By Luigi Ferrara
Located in Naples, IT
Carats of White Rose Cut Diamonds. This Ring has a 0.62 Carats Octagon Cut Emerald. Size ITA: 14 USA: 6
Category

Late 20th Century Italian Art Deco Band Rings

Materials

Emerald, White Diamond, Diamond, Sterling Silver, Yellow Gold, 9k Gold

Art Deco Style White Rose Cut Diamond Octagon Cut Emerald Yellow Gold Ring
By Luigi Ferrara
Located in Naples, IT
Carats of White Rose Cut Diamonds. This Ring has a 0.65 Carats Octagon Cut Emerald. Size ITA: 14 USA: 6
Category

Late 20th Century Italian Art Deco Band Rings

Materials

Emerald, White Diamond, Diamond, Sterling Silver, Yellow Gold, 9k Gold

Diamond Onyx Bezel Set Art Deco Style Octagon Stud Earrings in 9K Yellow Gold
Located in Bangkok, TH
An extraordinary Art Deco inspired stud earrings with a bezel set octagonal shaped onyx and central
Category

21st Century and Contemporary Thai Art Deco Stud Earrings

Materials

Diamond, Onyx, 9k Gold, Yellow Gold

Art Deco diamond ring, American, circa 1935.
Located in London, GB
Art Deco emerald-cut diamond ring. Set vertically with an octagonal emerald-cut diamond to centre
Category

Vintage 1930s American Art Deco Cluster Rings

Materials

Diamond, Platinum

Rare Art Deco Dining or Conference Table in the Shape of an Octagonal Diamond
Located in Antwerp, BE
Beautiful Belgium Art Deco octagonal dining table or desk and writing table. Made in the 1920s for
Category

Early 20th Century Belgian Art Deco Dining Room Tables

Materials

Metal

Art Deco aquamarine and diamond ring, circa 1935.
Located in London, GB
Art Deco aquamarine and diamond ring. Centrally set with an octagonal scissor cut natural
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

French Art Deco Diamond and Australian Sapphire Ring
Located in Brisbane City, QLD
This French Art Deco ring has been hand crafted from platinum and set with diamonds and a beautiful
Category

Vintage 1920s French Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Natural Sapphire Diamond Platinum Ring
Located in London, GB
Art Deco sapphire and diamond ring. Set to centre with a rectangular emerald-cut natural unenhanced
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Blue Sapphire, Diamond, Platinum

Original Art Deco, Platinum, Emerald, and Diamond Ring
Located in Brisbane City, QLD
the Art Deco period, very likely the 1930s. Ring size - 51/L Marked - Unmarked but tests as
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Art Deco Natural Unenhanced Sapphire Diamond Bracelet, circa 1935
Located in London, GB
Art Deco sapphire and diamond bracelet. Set with five octagonal emerald-cut natural unenhanced
Category

Vintage 1930s Art Deco Link Bracelets

Materials

Diamond, Sapphire, Platinum

Art Deco, Aquamarine, Platinum, and Diamond Bracelet with GIA Certification
Located in Brisbane City, QLD
An incredible Art Deco diamond and aquamarine bracelet set in platinum. The central panel features
Category

Early 20th Century Art Deco Link Bracelets

Materials

Aquamarine, Diamond, Platinum

Art Deco gold ring with 12.00ct aquamarine and diamonds.
Located in Chorzów, PL
Art Déco style ring with an octagonal faceted aquamarine weighing approx. 12.00 ct, with a
Category

Mid-20th Century German Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Gold, White Gold

Art Deco Colombian emerald and diamond flanked solitaire ring, circa 1925.
Located in London, GB
Art Deco Colombian emerald and diamond flanked solitaire ring. Centrally set with an octagonal step
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, Emerald, Platinum

Antique Art Deco Colombian Natural Emerald and Baguette Diamond Ring - GIA
Located in Great Neck, NY
Beautiful Antique Art Deco Colombian Natural Emerald and Baguette Diamond Ring - GIA. This
Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified Art Deco Colombian Emerald and Diamond Ring
Located in beverly hills, CA
A sublime Art Deco ring highlighting a richly saturated octagonal 2 carat Colombian emerald in a
Category

Vintage 1910s Unknown Art Deco More Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Art Deco 18K White Gold Diamond Coral Dangle Earrings
Located in Rotterdam, NL
classic elegance and aesthetic grace that are characteristic of the Art Deco jewelry design. The coral
Category

Vintage 1920s Art Deco Dangle Earrings

Materials

Coral, Diamond, White Gold, 18k Gold, Gold

Art Deco Style Certified Square Ceylon Sapphire & Diamond Ring in Platinum
Located in New York, NY
This one of a kind handmade made art deco style ring features a GIA certified Ceylon sapphire
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Rare Art Deco Dining/Conference Table in the Shape of an Octagonal Diamond
Located in Antwerp, BE
Beautiful Hollywood Regency Belgium Art Deco octagonal dining table or desk and writing table. Made
Category

Vintage 1910s Belgian Hollywood Regency Dining Room Tables

Materials

Metal

28 Carat Octagonal Cut Aquamarine Diamonds Onyx Platinum Cocktail Ring
Located in Pamplona, Navarra
28 carat octogonal cut single stone aquamarine onyx frame and brilliant cut diamonds set in an hand
Category

Vintage 1960s Unknown Art Deco Cufflinks

Materials

Aquamarine, Diamond, Onyx, Platinum

Vintage Art Deco Platinum Baguette Diamond and Sapphire Cocktail Ring - GIA
Located in Great Neck, NY
Beautiful Vintage Art Deco Platinum Baguette Diamond and Sapphire Cocktail Ring - GIA. This
Category

Vintage 1940s Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Diamond Octagonal White Gold Locket Pendant
Located in New York, NY
Diamond Octagonal White Gold Locket Pendant This octagonal-shaped locket pendant is crafted in 14k
Category

Vintage 1950s Unknown Art Deco Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Art Deco Platinum & Gold 3.68ctw GIA Colombian Emerald Diamond Bar Pin Brooch
Located in Montclair, NJ
: Pin w/ Push Closure Condition: Antique, Art Deco. Excellent condition. Comes with original GIA
Category

Vintage 1920s Art Deco Brooches

Materials

Diamond, Emerald, Gold, Platinum

Art Deco 7.75 Carat Natural Colombian Emerald and Diamond Pendant Necklace
Located in Chevy Chase, MD
A stunning Art Deco natural Colombian Emerald pendant necklace! The Emerald is octagonal in shape
Category

Mid-20th Century Colombian Art Deco Pendant Necklaces

Materials

Diamond, Emerald, Platinum

Emerald and Diamond Art Deco Style Bracelet in 18K White Gold
Located in Bangkok, TH
This luminous and luxurious Art Deco style jewel features a center approx. 2.16 carat emerald
Category

21st Century and Contemporary Thai Art Deco Bangles

Materials

Diamond, Emerald, 18k Gold, White Gold

Original Later Art Deco Platinum Cocktail Ring with Diamonds and a pearl
Located in AMSTERDAM, NL
On offer is a white gold Later Art Deco Platinum Cocktail ring decorated with a 1 Akoya Pearl of
Category

Vintage 1930s French Art Deco Cocktail Rings

Materials

Diamond, Pearl, Platinum

Antique Art Deco Marcus Co Platinum Diamond No Oil Emerald Engagement Ring - GIA
By Marcus & Co.
Located in Great Neck, NY
Beautiful Antique Art Deco Marcus Co Platinum Diamond No Oil Emerald Engagement Ring - GIA. This
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

Art Deco 0.70 Carat Emerald and 2.42 Carat Diamond, Platinum Ring Circa 1930
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique Art Deco 0.70 carat emerald and 2.42 carat diamond
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Everyday Octagon Cut Natural Ruby and Diamond Pendant in Sterling Silver
Located in New York, NY
Everyday Octagon Cut Natural Ruby and Diamond Pendant in sterling silver studded with octagon cut
Category

21st Century and Contemporary American Art Deco Pendant Necklaces

Materials

Diamond, Ruby, Silver, Sterling Silver

Nigaam 1.03 Ctw. Aquamarine & VS Diamond Art Deco Pendant in 18K White Gold
Located in New York, NY
Embrace the elegance of Art Deco design with this stunning pendant necklace. Crafted in polished
Category

2010s Art Deco Pendant Necklaces

Materials

Aquamarine, Diamond, White Gold, Enamel

Art Deco 1.00ct Emerald and Diamond Trilogy Ring, c.1920s
Located in London, GB
An exceptional Art deco era piece, this stunning trilogy ring features a Colombian emerald at its
Category

Vintage 1920s British Art Deco Three-Stone Rings

Materials

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

Fine Art Deco Natural Sapphire Diamond 18K White Gold Engagement Ring, GIA
Located in New York, NY
Classic, elegant estate Art Deco period 3.56 Carat natural blue sapphire diamond 18K white gold
Category

Early 20th Century Art Deco Engagement Rings

Materials

Sapphire, Diamond, 18k Gold, White Gold

Octagon Coin Pave Diamond Initial Necklace
Located in Hertsliya, IL
The Octagon Coin Pave Diamond Initial Necklace pendant has a 42 cm Chain. We like this style
Category

2010s Asian Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold, White Gold, Yellow Gold

Sunita Nahata Art Deco Style Emerald and Diamond Earrings in 18KWYG
By Sunita Nahata
Located in Hong Kong, HK
Nahata Fine Design… Art Deco Style Emerald and Diamond Earrings in 18 Karat White and Yellow Gold
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

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

Sunita Nahata Art Deco Style Emerald and Diamond Necklace in 18KWYG
By Sunita Nahata
Located in Hong Kong, HK
Nahata Fine Design… Art Deco Style Emerald and Diamond Necklace in 18 Karat White and Yellow Gold
Category

21st Century and Contemporary Thai Art Deco Drop Necklaces

Materials

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

Ruby and Diamond Art Deco Style Engagement Ring in 18K White Gold
Located in Bangkok, TH
A gorgeous emerald cut ruby is presented in classic Art Deco style. The gemstone radiates from
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Ruby, Diamond, White Gold, 18k Gold

Genuine Octagon Emerald Pendant with Diamond Halo in 18k White Gold
By VR Jewels
Located in New York, NY
Genuine Octagon Emerald Pendant with Diamond Halo in 18K Gold. This stunning piece of jewelry
Category

21st Century and Contemporary American Art Deco Pendant Necklaces

Materials

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

19.20 Carats Zambian Emerald 4.40 Ct's Diamonds Art Deco Style Solitaire Ring
Located in Istanbul, Fatih
For the love of Green ! This magnificent art deco style piece has 19.20 Carats of Zambian Emerald
Category

21st Century and Contemporary Turkish Art Deco Solitaire Rings

Materials

Diamond, Emerald, 18k Gold

Certified Octagon Emerald and Diamond Halo Dangle Earrings in 18k Yellow Gold
By VR Jewels
Located in New York, NY
Certified Octagon Emerald and Diamond Halo Dangle Earrings in 18K Gold to make a statement with
Category

21st Century and Contemporary American Art Deco Dangle Earrings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold

Nigaam Art Deco 1.25 Ctw. Morganite/VS Diamond Ring Size 7 in 18K White Gold
Located in New York, NY
Step into a world of timeless elegance with this captivating ring, blending Art Deco inspiration
Category

2010s Art Deco Cocktail Rings

Materials

Diamond, Morganite, White Gold

Octagon Blue Sapphire Diamond Halo Pendant in 14k Solid White Gold
By VR Jewels
Located in New York, NY
Octagon Blue Sapphire and Diamond Halo Pendant in 14K Gold studded with octagon cut blue sapphire
Category

21st Century and Contemporary American Art Deco Pendant Necklaces

Materials

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

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Octagonal Diamond Art Deco For Sale on 1stDibs

Find the exact octagonal diamond art deco you’re shopping for in the variety available on 1stDibs. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. You can easily find a 84 antique edition and 49 modern creations to choose from as well. You’re likely to find the perfect octagonal diamond art deco 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 octagonal diamond art deco — no matter the origin — is easy, but Sunita Nahata, Single Stone and Gabriel & Co. each produced a popular version that is worth a look. An octagon cut version of this piece has appeal, but there are also old european cut and round cut versions for sale. When shopping for a octagonal diamond art deco, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Octagonal Diamond Art Deco?

On average, a octagonal diamond art deco at 1stDibs sells for $8,675, while they’re typically $985 on the low end and $650,000 for the highest priced versions of this item.

A Close Look at Art-deco Jewelry

Fascination with the Jazz Age is endless, and even today jewelry designers continue to be inspired by authentic Art Deco jewelry and watches.

The Art Deco period, encompassing the 1920s and ’30s, ushered in a very distinct look in the design of jewelry. There were many influences on the jewelry of the era that actually began to take shape prior to the 1920s. In 1909, Serge Diaghilev brought the Ballet Russes to Paris, and women went wild for the company’s exotic and vibrant costumes It’s no wonder, then, that jade, lapis lazuli, coral, turquoise and other bright gemstones became all the rage. There already existed a fascination with the East, particularly China and Japan, and motifs consisting of fans and masks started to show up in Art Deco jewelry.

However, the event that had the greatest influence on Deco was the excavation of the tomb of King Tut in 1922. When the world saw what was hidden in Tut’s burial chamber, it sent just about everyone into a frenzy. Pierre Cartier wrote in 1923 that “the discovery of the tomb will bring some sweeping changes in fashion jewelry.” And he couldn’t have been more right. “Egyptomania” left an indelible mark on all of the major jewelry houses, from Cartier to Van Cleef & Arpels, Boucheron and Georges Fouquet. (Cartier created some of the most iconic jewelry designs that defined this era.)

While a lot of Art Deco jewelry was black and white — the black coming from the use of onyx or black enamel and the white from rock crystal and diamonds — there is plenty of color in jewelry of the era. A perfect accent to diamonds in platinum settings were blue sapphires, emeralds and rubies, and these stones were also used in combination with each other.

Many designers employed coral, jade and lapis lazuli, too. In fact, some of the most important avant-garde jewelers of the period, like Jean Després and Jean Fouquet (son of Georges), would combine white gold with ebony and malachite for a jolt of color.

A lot of the jewelry produced during this time nodded to current fashion trends, and women often accessorized their accessories. The cloche hat was often accented with geometric diamond brooches or double-clip brooches. Backless evening dresses looked fabulous with sautoir necklaces, and long pearl necklaces that ended with tassels, popular during the Edwardian period, were favored by women everywhere, including Coco Chanel.

Find unique Art Deco necklaces, earrings, bracelets and other jewelry on 1stDibs.

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.