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French Art Deco Emerald Cut Diamond

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Rose Cut Diamond Emerald Filigree Pendant and Earrings Jewelry Set in 18K Gold
Located in Bangkok, TH
This Rose Cut Diamond and Emerald Antique Style Filigree Pendant and Earrings Jewelry Set
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

1925s Art Deco Diamond Aquamarine 18 Karat White Gold Brooch
Located in Poitiers, FR
design of scrolls, fleurdelys and arabesques, all set with rose-cut and antique-cut diamonds. In the
Category

Vintage 1920s French Art Deco Brooches

Materials

Diamond, White Diamond, Aquamarine, Gold, 18k Gold, White Gold

Antique Art Deco Platinum Old Mine Diamond and French Onyx Halo Engagement Ring
Located in Great Neck, NY
amazing Art Deco old mine diamond and French cut onyx halo engagement ring is crafted in platinum. The
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Onyx, Platinum

Rose Cut Diamond and Emerald Antique Style Filigree Pendant in 14K Yellow Gold
Located in Bangkok, TH
rose-cut diamond paired with vibrant emerald accents. The vintage design highlights timeless elegance
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Round Cut Diamond with Emerald Sapphire Rose Floral Pendant in 18K White Gold
Located in Bangkok, TH
A stunning round cut diamond at the center, surrounded by alternating emerald and sapphire stones
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

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

CARTIER 1930 Art Deco Charms Bracelet Platinum With 6.04 Ctw In Diamonds Gems
By Cartier
Located in Miami, FL
An art deco nine-charms bracelet designed by Cartier. This is a fabulous and extremely rare
Category

Vintage 1930s French Art Deco Charm Bracelets

Materials

Diamond, Emerald, Ruby, Sapphire, White Diamond, Blue Sapphire, Platinum

TUTTI FRUTTI 1950 Art-Deco Pendant Brooch In Platinum Diamonds Gemstones
Located in Miami, FL
An art deco Tutti-Frutti gemstones brooch. This is a gorgeous vintage brooch, created in America
Category

Vintage 1950s American Art Deco Pendant Necklaces

Materials

White Diamond, Emerald, Ruby, Blue Sapphire, Diamond, Platinum

Old Cut GIA Diamond Green Emerald Onyx Octagonal Engagement 18K White Gold Ring
By Unbranded
Located in Oakton, VA
An Art-Deco design diamond emerald and onyx target ring, center diamond with an outer ring of round
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Rose Cut Diamond and Emerald Antique Style Filigree Drop Earrings in 14K Gold
Located in Bangkok, TH
These antique-style drop earrings feature exquisite rose-cut diamonds paired with vibrant emeralds
Category

21st Century and Contemporary Thai Art Deco Dangle Earrings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Art Deco Style 17.38 CTS Aquamarine Diamond and Sapphire Earring
Located in New York, NY
go. Quick facts: Aquamarine: Baby blue emerald cut - 2 pcs. Total of 17.38 CTS - Diamonds: Round
Category

21st Century and Contemporary Art Deco Lever-Back Earrings

Materials

Aquamarine, Diamond, Sapphire, 18k Gold, Platinum

Emerald Cut Golden Beryl Heliodor Blue Sapphire Diamond 14K White Gold Ring
By Unbranded
Located in Oakton, VA
This elegant Art Deco style 14 carats emerald cut golden beryl set in bezel setting. There are 4.84
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

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

Antique Toi et Moi Ring in 18K Gold with Emerald Pearl and Old Cut Diamonds
Located in MONTMORENCY, FR
old cut diamonds are set along the shoulders, adding subtle sparkle and enhancing the asymmetrical
Category

Early 20th Century French Art Deco Cocktail Rings

Materials

Diamond, Emerald, Pearl, 18k Gold

Platinum, Diamond and Emerald Wristwatch
Located in New York, NY
single cut diamonds, accent by 10 baguette and 6 French-cut diamonds, altogether approximately 4.35 cts
Category

Vintage 1920s Art Deco Wrist Watches

Materials

Diamond, Emerald, Platinum

Emerald and diamond brooch Floral design
By Cartier
Located in Tel Aviv - Jaffa, IL
emerald. The petals pave set with circular cut diamonds. The Steve’s with baguette diamonds. The ribbon
Category

Vintage 1930s French Art Deco Brooches

Materials

Diamond, Emerald, Platinum

Emerald Cut Kunzite Diamond Ring (Approx 20.80-Carats), Platinum-18k Yellow Gold
Located in New York, NY
, Yellow Gold Stone: Diamond, Kunzite, Ruby Stone Cut: Emerald Cut Style: Art Deco Total Weight: 11.78
Category

21st Century and Contemporary Unknown Art Deco Cocktail Rings

Materials

Diamond, Kunzite, Ruby, Gold, Yellow Gold, Platinum

Emerald and Multi Gemstone Art Deco Style Drop Earrings in 18K Gold
Located in Bangkok, TH
carats cushion shaped emeralds. The center emeralds are accentuated by French cut emeralds, sapphires
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Emerald, Multi-gemstone, 18k Gold, White Gold

Art Deco Style Blue Aquamarine Sapphire Diamond Octagon Halo White Pendant
By Unbranded
Located in Oakton, VA
and design. Emerald cut aquamarine, French cut sapphire, and round cut diamond are precisely arranged
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

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

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

GIA Certified 1.20 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Carat Total Weight Cut: Antique Single Cut Color: G-H Clarity: VS Emerald Details: French Cut, .20cttw
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Diamond Rainbow Sapphire Art Deco Style Pendant in 18K White Gold
Located in Bangkok, TH
Sapphire, Emerald, or Ruby) is a specialty cut to surround the excellent emerald cut center diamond, which
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold

Peach Morganite Diamond Vintage Inspire Art Deco Style Drop Rose Gold Earrings
By Unbranded
Located in Oakton, VA
Deco-style dangle earrings. The soft peachy pink hues of the emerald cut Morganite center stones are
Category

21st Century and Contemporary Art Deco Dangle Earrings

Materials

Diamond, Morganite, 14k Gold, Rose Gold

Art deco necklace with amethyst and diamonds
Located in Berlin, BE
shape with a step-cut that bears a striking resemblance to an emerald cut but with the unique grace of
Category

Late 20th Century French Aesthetic Movement Pendant Necklaces

Materials

Amethyst, Diamond, Gold, 14k Gold, Yellow Gold

Blue Aquamarine Blue Sapphire Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
This stunning Art Deco-style cocktail ring features a mesmerizing emerald-cut aquamarine at its
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

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

Art Deco 1.08ct Unheated Purple Sapphire Diamond Ring in 18K White Gold
Located in Los Angeles, US
Art Deco ring featuring a 1.08 carat unheated bezel-set Purple Sapphire, 0.63 carat of Blue
Category

2010s French Art Deco Cocktail Rings

Materials

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

14K Yellow Gold Diamond 2.06 Carat Emerald Cut East West Green Tourmaline Ring
Located in Los Angeles, CA
DeKara Designs Collection Our latest design! An Elegant and Lustrous Elongated Emerald Cut Teal
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Tourmaline, 14k Gold, Yellow Gold

Diamond Rainbow Colored Sapphire Halo Set Art Deco Style 14K White Gold Pendant
By Unbranded
Located in Oakton, VA
colors! This Art-Deco pendant is completely spectacular! The vibrant color stone is a specialty cut to
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Sapphire Diamond Art Deco Style Lever Back Earrings in 18K White Gold
Located in Bangkok, TH
halo of brilliant diamonds and framed in elegant French-cut sapphires that echo vintage sophistication
Category

21st Century and Contemporary Thai Art Deco Lever-Back Earrings

Materials

Diamond, Sapphire, White Gold, 18k 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

Ruby and Diamond Art Deco Style Engagement Ring in 14K White Gold
Located in Bangkok, TH
. Framed with precision-set French-cut emeralds, the rich contrast creates a captivating harmony of red and
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Ruby, Diamond, 14k Gold, White Gold

Rectangle Green Amethyst Peridot Diamond Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
This Green Amethyst Peridot and Diamond Art Deco Style Engagement Ring combines elegance and
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Amethyst, Diamond, Peridot, 14k Gold, White Gold

French 1930s Emerald Sapphire Diamonds 18 Karat White Gold You and Me Ring
Located in Poitiers, FR
brilliant- cut diamonds. Weight of the emerald : 0.70 carat approximately. Weight of the sapphire : 0.80
Category

Vintage 1930s French Art Deco Engagement Rings

Materials

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

Blue Aquamarine Sapphire Diamond Art Deco Style Stud 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
surround by a row of French cut sapphires, suspended from a round diamond-set top. These eye-catching
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

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

Colombian emerald and diamond bar brooch, circa 1920.
Located in London, GB
Colombian emerald and diamond bar brooch. Set to centre with an octagonal-emerald cut natural
Category

Vintage 1920s French Art Deco Brooches

Materials

Emerald, 18k Gold, Platinum

Blue Aquamarine Blue Sapphire Diamond Art Deco Style Engagement White Gold Ring
By Unbranded
Located in Oakton, VA
A gorgeous emerald cut aquamarine is presented in classic Art Deco style. The glorious light blue
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

New Art Deco Style Aquamarine Sapphires Diamonds 18K White Gold Staircase Ring
Located in Poitiers, FR
Ring in 18 karat white gold, eagle head hallmark. Reviving the codes of early Art Deco rings, this
Category

21st Century and Contemporary French Art Deco Engagement Rings

Materials

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

Ruby Pave Diamond Art Deco Inspired Style Statement 14K White Gold Ring
By Unbranded
Located in Oakton, VA
A gorgeous emerald cut ruby is presented in classic Art Deco style. The gemstone radiates from
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Ruby and Diamond Art Deco Style Lever Back Earrings in 14K White Gold
Located in Bangkok, TH
passion, encircled by a dazzling dance of diamonds and framed with precision-cut French rubies for a
Category

21st Century and Contemporary Thai Art Deco Lever-Back Earrings

Materials

Diamond, Ruby, 14k Gold, White Gold

Elongated Cushion Green Tsavorite Sapphire Onyx Diamond Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
gorgeous gleaming emerald cut green tsavorite framed in eye-catching contrast by French cut blue sapphire
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Octagon Amethyst Ruby Diamond Art Deco Style Halo Set 14K White Gold Ring
By Unbranded
Located in Oakton, VA
gorgeous gleaming emerald cut amethyst framed in eye-catching contrast by French cut rubies. Each side and
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Purple Violet Amethyst Ruby and Diamond Halo Set Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
at the heart, surrounded by French cut rubies and round brilliant cut diamonds in 2 rows halo. The
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Sapphire with Diamond Art Deco Style Engagement Ring in 14K White Gold
Located in Bangkok, TH
diamonds that dance with every glance. Framed by meticulously set French-cut sapphires, the design radiates
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

Aquamarine Sapphire Diamond Art Deco Style Cocktail Ring in 18K White Gold
Located in Bangkok, TH
This stunning Art Deco-style cocktail ring features a mesmerizing emerald-cut aquamarine at its
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Diamond, Aquamarine, Sapphire, White Gold, 18k Gold

Blue Topaz Sapphire Diamond Art Deco Style Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
French cut blue sapphire and round diamonds finished. 14K White Gold. Earrings Information Width: 12 mm
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

London Blue Topaz Diamond Halo Vintage Inspired Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Make a powerful statement in blue. This ring features a perfect sparkly emerald cut London blue
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Topaz, 14k Gold, White Gold

Diamond Illusion Set Blue Sapphire Halo Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
diamond is accented by French cut emeralds. This is a perfect piece for an engagement or a statement ring
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Octagon Pink Kunzite Diamond Pave Set Onyx Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
The centerpiece of the ring is a 3.82 carats emerald cut pink kunzite highlight by .60 carat round
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Diamond and Sapphire Art Deco Style Ring in 14K Yellow Gold
Located in Bangkok, TH
Elevate your look with this stunning Diamond and Sapphire Art Deco Style Ring. Featuring brilliant
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

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

GIA 1.20 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
European Cut Color: G Clarity: VS Color Stone: Emerald, French Cut, Synthetic, Green, .40ct, total
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1940s French Zircon Diamond Emerald and White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive vintage French 5.35 carat high zircon and 0.25 carat diamond, 0.24 carat emerald and
Category

Vintage 1940s French Cocktail Rings

Materials

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

Art Deco Style Octagon Dark Pink Rhodolite Ruby Diamond 18K White Gold Ring
By Unbranded
Located in Oakton, VA
. Bright diamonds and French cut rubies transition the shoulders, with millgrain detailing bringing texture
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, Rhodolite, 18k Gold, White Gold

Ruby Diamond Art Deco Style Ring Lever Back Earrings Jewelry Set in 14K Gold
Located in Bangkok, TH
movement. The exquisite French-cut rubies elegantly frame the center, enhancing the vibrant allure of each
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Diamond, Ruby, 14k Gold, White Gold

White Blue Opal London Blue Topaz Diamond Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
This Art Deco style opal ring features a 2.38 emerald cut authentic opal with baguette cut London
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Opal, 14k Gold, White Gold

Amethyst Sapphire and Diamond Art Deco Style Engagement Ring in 18K White Gold
Located in Bangkok, TH
A striking emerald cut amethyst at the center, surrounded by a rich sapphires and sparkling
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Amethyst, Diamond, Sapphire, 18k Gold, White 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

Morganite Orange Sapphire Diamond Art Deco Style Engagement Ring in 18K Gold
Located in Bangkok, TH
A stunning emerald cut morganite center that glows with soft, romantic hues. Flanked by linear
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Morganite, Sapphire, Gold, Rose Gold, 18k Gold

Alternate Baguette Emerald with Round Diamond Half Eternity Ring
By Unbranded
Located in Oakton, VA
cut diamonds and baguette emerald, elegantly framed by a millgrain edge. This white gold band is the
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

GIA Art Deco Style Radiant Shape Diamond Blue Sapphire Halo 18K White Gold Ring
By Unbranded
Located in Oakton, VA
An 18k white gold Art-Deco design diamond and sapphire target ring, center K/VS diamond with an
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

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French Art Deco Emerald Cut Diamond For Sale on 1stDibs

You are likely to find exactly the french art deco emerald cut diamond you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of Platinum, 18k Gold and Gold, this item was constructed with great care. You can easily find a 23 antique edition and 2 modern creations to choose from as well. Finding the perfect french art deco emerald cut diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, 2.5 Carat and 3 Carat are consistently popular carat weights. A french art deco emerald cut diamond from Sophia D and Tiffany Co. — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for an emerald cut version of this piece and are unable to find the perfect match, our selection also includes cushion cut and french cut alternatives. There aren’t many items for men if you’re seeking a french art deco emerald cut diamond, as most of the options available are for women and unisex.

How Much is a French Art Deco Emerald Cut Diamond?

The price for a french art deco emerald cut diamond starts at $3,250 and tops out at $200,000 with these rings, on average, selling for $8,000.

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.