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5 Carat Diamond Art Deco

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Diamond Blue Sapphire Art Deco Style 18K White Gold Vintage Style Ring
By Unbranded
Located in Oakton, VA
cut sapphires accents weighing a total of 1.56 carats. Ring Information Style: Art Deco Metal: 18K
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Pendant in 18K White Gold
Located in Bangkok, TH
iconic Art Deco movement, this stunning pendant showcases an approx. 1.6 carat oval cut blue sapphire
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Diamond Onyx Emerald Art Deco Style Target Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Charming Art Deco style target earrings featuring a diamond center surrounded onyx, round brilliant
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

Blue Sapphire Diamond Art Deco Style Openwork Ring Earrings Jewelry Gold Set
By Unbranded
Located in Oakton, VA
Step into the elegance of the Art Deco era with this stunning Blue Sapphire Diamond Art Deco Style
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Morning Glory Blue Sapphire Diamond Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Style: Art Deco Weight: 4.00 g. (approx. total weight) Center Gemstones Type: Diamond Shape: Round
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Drop Dangle 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Art Deco style design! The blue sapphire stands our beautifully in the center. The setting is
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Sapphire Diamond Platinum Filigree Art Deco Drop Pendant Necklace
Located in Stamford, CT
Art Deco sapphire and diamond pendant necklace. Filigree open work pendant with 35 round diamonds
Category

Early 20th Century Pendant Necklaces

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Oval Shape Blue Sapphire Diamond Art Deco Style 18K White Gold Ring
By Unbranded
Located in Oakton, VA
constructed Art Deco style dinner ring. The gemstone is surrounded by round diamonds and French cut sapphires
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Blue Round Sapphire Diamond Art Deco Style Floral 14K White Gold Ring
By Unbranded
Located in Oakton, VA
A chic blue sapphire and diamond ring inspired by the Art Deco period. The central sapphire is
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Diamond Blue Sapphire Art Deco Style Inspire Floral Dangle White Gold Earrings
By Unbranded
Located in Oakton, VA
These Art Deco inspired drop earrings features 0.85 carats of total diamonds and 2 carat blue
Category

21st Century and Contemporary Art Deco Dangle Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold, Platinum

Art Deco 1920 Platinum Cocktail Ring 2.40 CTW Aquamarine, Sapphires and Diamonds
Located in Aventura, FL
adds a touch of brilliance. Period: 1920-30´s Style: Art Deco Metal: Platinum Stone: Natural Diamonds
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Diamond &Black Onyx Art Deco Style Three Stone 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Style: Art-deco Total weight: 3.20 g. (approx. total weight) Center Gemstone Type: Diamond Shape: Round
Category

21st Century and Contemporary Art Deco Three-Stone Rings

Materials

Diamond, Onyx, 14k Gold, White Gold

Green Emerald Diamond Art Deco Style Double Halo Set Engagement Gold Ring
By Unbranded
Located in Oakton, VA
Size: 7 x 5 mm. Number: 1 Weight: 1.20 Carat (approx.) Accent Gemstones I Type: Diamond Shape: Round
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

French, 1925s, Art Deco Sapphire Diamonds 18 Karat Yellow Gold Ring
Located in Poitiers, FR
, please contact us. Our opinion : An original and characteristic line for this Art Deco sapphire diamond
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

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

Blue Sapphire Diamond Vintage Inspired Art Deco Style White Gold Line Bracelet
By Unbranded
Located in Oakton, VA
. The bracelet is made in measures 185 mm. in length and is such a spectacular example of Art Deco
Category

21st Century and Contemporary Art Deco Link Bracelets

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Platinum Estate Jade, Diamond and Onyx Chandelier Art Deco Style Dangle Earrings
Located in Scottsdale, AZ
Platinum estate jade, diamond and onyx chandelier Art Deco style dangle earrings. Showcasing
Category

20th Century Art Deco Dangle Earrings

Materials

Diamond, Jade, Onyx, Platinum

Emerald Diamond Vintage Inspire Art Deco Style Link White Gold Unique Bracelet
By Unbranded
Located in Oakton, VA
This elegant Art Deco-style link bracelet features vibrant emeralds at the heart of each link
Category

21st Century and Contemporary Art Deco Retro Bracelets

Materials

Diamond, Emerald, 14k Gold, White Gold

Blue Sapphire Diamond Vintage Inspired Art Deco Style Drop White Gold Earrings
By Unbranded
Located in Oakton, VA
essence of the Art Deco era. Each earring features sparkling blue sapphires, expertly complemented by
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Sapphire Diamond Art Deco Style Lever Back Earrings in 18K White Gold
Located in Bangkok, TH
statement of style. Let your look speak in sapphire and shine. Earrings Information Style: Art Deco Metal
Category

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

Materials

Diamond, Sapphire, White Gold, 18k Gold

Blue Sapphire Diamond Art Deco Style Openwork Earrings in 18K White Gold
Located in Bangkok, TH
Step into the elegance of the Art Deco era with this stunning Blue Sapphire Diamond Art Deco Style
Category

21st Century and Contemporary Thai Art Deco Dangle Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

18K White Gold Art Deco Old European Cut Diamond Engagement Ring
Located in Venice, CA
This 18k white gold diamond ring has all the classic elements of a beautiful Art Deco ring. The .55
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

French Cut Ruby Diamond Vintage Inspired Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Elevate Your Everyday Elegance with Our French Cut Ruby Diamond Art Deco Style Ring, brilliantly
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Art Deco 1.39 CTW Old European Cut Diamond 14 Karat Gold Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 1.17 carats - I color with SI2 clarity
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Nigaam Art Deco 1.28 Ctw. Aquamarine VS Diamond Ring Size 7 in 18K White Gold
Located in New York, NY
Capture the essence of timeless elegance with this stunning ring, a harmonious blend of Art Deco
Category

2010s Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, White Gold, Enamel

Emerald Diamond Art Deco Style 18 Karat Yellow Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This ring is crafted from 18-karat gold. It is hand set in 1.86 carats emerald & .30 carats of
Category

21st Century and Contemporary Unknown Art Deco Band Rings

Materials

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

Round Diamond Green Emerald Art Deco Style 14K White Gold Pendant Necklace
By Unbranded
Located in Oakton, VA
A classic beauty of yesteryear. This Art Deco inspired pendant features a 0.5 carat diamond
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

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

Blue Sapphire Diamond Vintage Inspired Art Deco Style 14K Yellow Gold Ring
By Unbranded
Located in Oakton, VA
An Art Deco inspired ring, set to center a bezel set oval natural blue sapphire, millgrain edging
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

Oval Blue Sapphire Diamond Art Deco Style Engagement 14K Yellow Gold Ring
By Unbranded
Located in Oakton, VA
An absolutely breathtaking blue sapphire and diamond Art Deco inspired ring, featuring French cut
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

French Cut Ruby Diamond Art Deco Style Ring in 14K White Gold
Located in Bangkok, TH
Elevate Your Everyday Elegance with Our French Cut Ruby Diamond Art Deco Style Ring, brilliantly
Category

21st Century and Contemporary Thai Art Deco Cluster Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Hartzberg Co. 1930 Art Deco Band Ring In Platinum With VS Diamonds
Located in Miami, FL
An art deco ring with diamonds designed by J L Hartzberg & Co.. Beautiful band ring created during
Category

Vintage 1930s American Art Deco Band Rings

Materials

Diamond, White Diamond, Platinum

Diamond Emerald and Onyx Art Deco Style Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
These Art Deco inspired diamond emerald and onyx drop earrings in white gold/platinum are a
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

Diamond and Ruby Art Deco Style Cocktail Ring in 14K White Gold
Located in Bangkok, TH
Classic romance meets bold design in this dazzling Art Deco-style cocktail ring. A brilliant round
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Ruby, White Gold, 14k Gold

Art Deco 2.25 CTW Old European Cut Diamond Platinum Vintage Engagement Ring GIA
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 1.87 carat - K color with VS2 clarity
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Green Emerald Old Cut Diamond Vintage Inspired Art Deco White Gold Ring
By Unbranded
Located in Oakton, VA
from all. Ring Information Style: Art-deco Metal: 18K White Gold Total weight: 4.99 g. (approx. total
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Round Blue Sapphire Diamond Art Deco Style Engagement 18K White Gold Ring
By Unbranded
Located in Oakton, VA
Information Style: Art-deco Total weight: 5.80 g. (approx. total weight) Center Gemstones Type: Ceylon
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Square Pink Ruby Diamond Art Deco Style Tennis Line White Gold Bracelet
By Unbranded
Located in Oakton, VA
bold, geometric Art Deco design creates a striking contrast between the deep red rubies and the
Category

21st Century and Contemporary Art Deco Tennis Bracelets

Materials

Diamond, Ruby, 14k Gold, White Gold

BAILEY BANKS BIDDLE 1925 Art Deco Jardinière Brooch Platinum Diamonds Onyx
By Bailey, Banks Biddle
Located in Miami, FL
amazing piece scream art deco with its old European cut diamonds, carved color gemstones, the millegrain
Category

Vintage 1920s North American Art Deco Pendant Necklaces

Materials

Agate, Chrysophrase, Diamond, White Diamond, Onyx, Platinum

Diamond Blue Sapphire Vintage Inspired Art Deco Style White Gold Dinner Ring
By Unbranded
Located in Oakton, VA
This eye-catching Art Deco inspired ring features diamonds and blue sapphires in shimmering white
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Vintage Art Deco Diamond Ruby Ring Sz 5.5 Platinum Navette Estate Jewelry
Located in Torrance, CA
Finely detailed vintage Art Deco diamond & ruby ring (circa 1920s to 1930s) crafted in 900 platinum
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Art Deco Alternate Blue Sapphire Diamond Eternity Band 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Inspired by the Art Deco period, this Aimée ring features 0.86 carats of alternate round brilliant
Category

21st Century and Contemporary Art Deco Wedding Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Art Deco Alternate Green Emerald Diamond Eternity Band 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Inspired by the Art Deco period, this Aimée ring features 0.86 carats of alternate round brilliant
Category

21st Century and Contemporary Art Deco Wedding Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Rectangle Aquamarine Onyx Diamond Vintage Inspire Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Release your inner flapper with this cool blue beaty. Fashioned in Art Deco style, the ring
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Onyx, 14k Gold, White Gold

Blue Sapphire Diamond Edwardian Style Openwork Art Deco Inspired White Gold Ring
By Unbranded
Located in Oakton, VA
diamonds with milgrain edge. The ring would make a lovely Art Deco style engagement ring but equally it’s a
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Art Deco full set diamond necklace with emerald 18k whitegold
Located in Berlin, BE
diamonds in various cuts, totaling approximately 5 carats. At the center of the diamond shape is a
Category

Late 20th Century German Art Deco Pendant Necklaces

Materials

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

Blue Sapphire Diamond Art Deco Style Target Stud 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
vintage feel. 14K White Gold. Earrings Information Style: Art Deco Width: 11 mm. Length: 11 mm. Weight
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White 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

Purple Violet Amethyst Emerald Diamond Art Deco Style 14K White Gold Ring
By Unbranded
Located in Oakton, VA
This incredible white gold Art Deco style ring features a cushion cut vivid purple amethyst
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Ruby and Diamond Art Deco Style Engagement Ring in 14K White Gold
Located in Bangkok, TH
Bold color meets vintage glamour in this striking Art Deco-style engagement ring. At its heart, a
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Ruby, Diamond, 14k Gold, White Gold

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

Aquamarine Sapphire and Diamond Art Deco Style Pendant in 14K White Gold
Located in Bangkok, TH
, delicately linked by more radiant diamonds. Pendant Information Style: Art Deco Metal: 14K White Gold Width
Category

21st Century and Contemporary Unknown Art Deco Pendant Necklaces

Materials

Aquamarine, Diamond, Sapphire, White Gold, 14k 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

Round Red Garnet Diamond Vintage Inspired Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Style: Art-deco Weight: 3.10 g. (approx. total weight) Ring size: US 3-8 available Center Gemstones
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Garnet, 14k Gold, White Gold

Art Deco 0.45 TCW Old European Diamond 18k White Gold Dinner Ring 1930s
Located in Towson, MD
One Art Deco ring, crafted in 18 karat white gold and weighing 4.56 grams, showcases nine vintage
Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Art Deco Chalcedony Black Onyx Diamond Gold Dangle Earrings
Located in Stamford, CT
Step into the glamour of a bygone era with our 1930's Art Deco chalcedony black onyx diamond gold
Category

Early 20th Century Dangle Earrings

Materials

Chalcedony, Diamond, Onyx, Gold, 14k Gold, White Gold

Art Deco Inspired Asscher Cut Diamond Ring in 18k Yellow Gold
Located in London, England
A beautiful Art Deco inspired Asscher cut diamond ring set in 18k yellow gold. This sparkly
Category

2010s British Art Deco Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Blue Aquamarine Sapphire Diamond Swirl Art Deco Style Dangle White Gold Earrings
By Unbranded
Located in Oakton, VA
These fabulous Art Deco style ear drops, fabricated in white gold, are stunning. Measuring 63 mm
Category

21st Century and Contemporary Art Deco Dangle Earrings

Materials

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

Art Deco Style Square Green Emerald Diamond White Gold Line Tennis Bracelet
By Unbranded
Located in Oakton, VA
A gorgeous gemstone line bracelet from the Art Deco era! , this fabulous piece features an
Category

21st Century and Contemporary Art Deco Link Bracelets

Materials

Diamond, Emerald, 14k Gold, White Gold

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5 Carat Diamond Art Deco For Sale on 1stDibs

You are likely to find exactly the 5 carat diamond art deco you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Platinum, Gold and 18k Gold — can elevate any look. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 5 carat diamond art deco may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. A 5 carat diamond art deco from Diamonds Mine, Luigi Ferrara and Royaal Stones Ltd — each of whom created a beautiful version of this treasured accessory — is worth considering. 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 oval cut alternatives. There aren’t many items for men if you’re seeking a 5 carat diamond art deco, as most of the options available are for women and unisex.

How Much is a 5 Carat Diamond Art Deco?

On average, a 5 carat diamond art deco at 1stDibs sells for $6,610, while they’re typically $250 on the low end and $850,000 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.