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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

Red Pink Ruby & Diamond Art Deco Style Octagon 14K White Gold Ring
By Unbranded
Located in Oakton, VA
hand pierced. 14K White Gold. Ring Information Style: Art-deco Weight: 4.50 g. (approx. total weight
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

“Octagon” Deco Natural Diamond Ring
Located in Vero Beach, FL
Brilliant Cut natural Diamonds. Diamonds measure from 1.50 m.m. up to 4.20 m.m.. Total Diamond weight is
Category

Vintage 1930s Unknown Art Deco Cluster Rings

Materials

Diamond, 14k Gold

Octagon Shape Swiss Blue Topaz & Diamond Halo Art Deco Style White Gold Pendant
By Unbranded
Located in Oakton, VA
quality and add sparkle from every angle. 14K White Gold.. Pendant Information Style: Art Deco Width: 16
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Blue Topaz, 14k Gold, White Gold

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 Octagon Ruby and Diamond Halo Pendant in 14k Yellow Gold
Art Deco Octagon Ruby and Diamond Halo Pendant in 14k Yellow Gold
$672 Sale Price / item
22% Off
W 0.36 in L 0.78 in
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

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

Diamond and Onyx Bezel Set Art Deco Style Octagon Stud Earrings
By Unbranded
Located in Oakton, VA
An extraordinary Art Deco inspired stud earrings with a bezel set octagonal shaped onyx and central
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Onyx, 14k Gold, Yellow 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

Asscher Morganite Orange Sapphire Diamond Art Deco Style Octagon Gold Pendant
By Unbranded
Located in Oakton, VA
This morganite with orange sapphire and diamond pendant presents a stunning example of Art Deco
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Morganite, 14k Gold, Rose 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

Diamond & Emerald Art Deco Style Octagon Shaped 14K White Gold Pendant
By Unbranded
Located in Oakton, VA
Information Style: Art Deco Width: 15 mm. Length: 22 mm. (length excludes chain) Weight: 3.22 g. (approx. in
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

Art Deco Style Blue Aquamarine & Sapphire Diamond Octagon Halo White Pendant
By Unbranded
Located in Oakton, VA
This aquamarine with sapphire and diamond pendant presents a stunning example of art deco styling
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Aquamarine, Diamond, Sapphire, 14k Gold, White Gold

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

Octagon Blue Aquamarine & Sapphire Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Breathtaking handcrafted white gold Art Deco style aquamarine, sapphire and diamond halo engagement
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Blue Sapphire, White Gold

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 & Black Onyx Art Deco Style Octagon Shaped Drop Yellow Gold Earrings
By Unbranded
Located in Oakton, VA
A stunning, fine and impressive Art Deco style diamond and onyx halo drop earrings. An approx. 0.07
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Onyx, 14k Gold, Yellow Gold

Elongated Octagon Blue Topaz & Sapphire Diamond Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
This exquisite Art Deco-style engagement ring showcases a dazzling blue topaz at its center
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Blue Topaz, 14k Gold, Yellow Gold

Green Emerald & Diamond Art Deco Style Octagon Pave Set White Gold Ring
By Unbranded
Located in Oakton, VA
arranged in a geometric Art Deco design. The clean lines and bold angles of the octagonal setting create a
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Octagon Shape Diamond & Green Emerald Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
A white gold Art-Deco design diamond and emerald target ring, a center diamond with an outer ring
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Octagon Emerald Cut Certified Purple Amethyst & Diamond Halo Art Deco Style Ring
By Unbranded
Located in Oakton, VA
This beautiful Art Deco style amethyst ring is centered with an emerald cut amethyst and accented
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Amethyst, Diamond, 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

Octagon Purple Violet Amethyst Emerald Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Centering an emerald cut amethyst, accented by French cut Emeralds, enhanced by diamonds. This Art
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Amethyst, Diamond, Emerald, 14k Gold, White Gold

Art Deco Style Octagon Shape Cut Blue Topaz & Diamond White Gold Earrings
By Unbranded
Located in Oakton, VA
. Information Style: Art Deco Metal: 9K White Gold Width: 9 mm. Length: 32 mm. Weight: 5.34 g. (approx. in
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Topaz, 9k Gold, White 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

Diamond & Black Octagon Onyx Art Deco Style Halo Unique 14K White Gold Ring
By Unbranded
Located in Oakton, VA
A stunning, fine and impressive Art Deco style diamond and onyx halo ring. A total of .28 carats of
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Onyx, 14k Gold, White 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 & Red Pink Ruby Art Deco Inspired Style Octagon 14K White Gold Pendant
By Unbranded
Located in Oakton, VA
An gold Art-Deco design diamond and ruby octagon shaped target pendant, center diamond with an
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Ruby, Gold, 14k Gold, White Gold

Art Deco Style Diamond with Emerald Sapphire Octagonal Stud 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Exquisite early Art Deco inspired Diamond and Emerald earrings. The central Diamond is surrounded
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Emerald, Sapphire, 14k Gold, White Gold

Diamond & Blue Sapphire Halo Set Art Deco Style Octagon 14K White Gold Pendant
By Unbranded
Located in Oakton, VA
A stunning Art Deco inspired pendant. A pendant with squared off edges in a traditional Art Deco
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

Diamond & Pink Red Ruby Halo Art Deco Style Octagon White Gold Stud Earrings
By Unbranded
Located in Oakton, VA
These Art-Deco stud earrings are completely spectacular! The vibrant color stone is a specialty cut
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Ruby, 14k Gold, White Gold

Diamond & Red Pink Ruby Art Deco Inspired Style Octagon 14K White Gold Ring
By Unbranded
Located in Oakton, VA
An white gold Art-Deco design diamond and ruby target ring, center diamond with an outer ring of
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Octagon Amethyst Ruby Diamond Art Deco Style Halo Set 14K White Gold Ring
By Unbranded
Located in Oakton, VA
shoulders set off with round diamond with milgrain edge.  14K White Gold Ring Information Style: Art-deco
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Amethyst, Diamond, Ruby, 14k Gold, White Gold

Octagon Blue Tanzanite & Emerald and Diamond Art Deco Style 18K White Gold Ring
By Unbranded
Located in Oakton, VA
You’ll be delighted to wear this splendid one-of-a-kind Art Deco inspired ring. Crafted in 18K
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Art Deco Style Octagon Cut Blue Sapphire & Emerald Diamond 14K White Gold Ring
By Unbranded
Located in Oakton, VA
emerald and round diamond in beautiful halo designs. Adorn yourself with an Art Deco inspired jewelry in
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, Sapphire, 14k Gold, White Gold

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

Octagon Shape Blue Sapphire & Black Onyx Diamond Art Deco Style Men Band Ring
By Unbranded
Located in Oakton, VA
This stunning Art Deco style ring features an emerald cut blue sapphire weighing 4.70 carat (approx
Category

21st Century and Contemporary Art Deco Band Rings

Materials

Diamond, Onyx, Blue Sapphire, 18k Gold, White Gold

Art Deco Style Octagon Sky Blue Topaz & Diamond Black Enamel White Gold Ring
By Unbranded
Located in Oakton, VA
A beautiful Art Deco style features the combination of emerald cut sky blue topaz accent with
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Topaz, 14k Gold, White Gold, Enamel

Octagon Pink Kunzite & Diamond Pave Set Onyx Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
of elegance. 14K White Gold. Ring Information Style: Art-deco Total weight: 5.99 g. (approx. total
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Kunzite, Onyx, 14k Gold, White Gold

Art Deco Style Octagon Dark Pink Rhodolite & Ruby Diamond 18K White Gold Ring
By Unbranded
Located in Oakton, VA
and style. Ring Information Style: Art-deco Metal: 18K White Gold Total weight: 10.98 g. (approx
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, Rhodolite, 18k Gold, White 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

Octagon Cut Blue Topaz & Diamond Sapphire Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
. 14K White Gold. Ring Information Style: Art-deco Total weight: 5.90 g. (approx. total weight) Center
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Round Diamond & Emerald Halo Set Octagonal Shape Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
timeless and unique style. Ring Information Style: Art-deco Total weight: 3.78 g. (approx. total weight
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, Green Beryl, 14k Gold, White 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
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

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

Oval Emerald & Diamond Art Deco Style Octagon Shape Halo Set 14K White Gold Ring
By Unbranded
Located in Oakton, VA
generations. Ring Information Style: Art-deco Total weight: 4.30 g. (approx. total weight) Center Gemstone
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 14k Gold, White 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

Octagon Swiss Blue Topaz & Diamond Art Deco Style 14K Halo Set White Gold Ring
By Unbranded
Located in Oakton, VA
A gorgeous emerald-cut blue topaz is presented in classic Art Deco style. The glorious gemstone
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Topaz, 14k 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

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

Art Deco Amethyst and Diamond Ring of Platinum
Located in Lewisburg, PA
An antique, Art Deco era ring (circa 1920s) featuring a central flat cut octagonal amethyst set in
Category

Vintage 1920s Art Deco Fashion Rings

Materials

Amethyst, Diamond, Platinum

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

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

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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.