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Emerald and Diamond Flower Pendant
By MIIORI
Located in New York, NY
Ladies beautiful diamond and emerald pendant in 18kt white gold. Pendant contains a .94 carat of a
Category

2010s Thai Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

Ring Yellow Gold Emerald
Located in PARIS, FR
Ring Yellow GoldEmerald
Category

20th Century French Engagement Rings

Materials

Emerald, Yellow Gold

18k White Gold Ring with Marquise-cut Emerald
By Crivelli
Located in Rome, IT
vi è posizionato uno smeraldo taglio marquise. Peso totale dell'oro 1.8g Caratura totale dei
Category

2010s Italian Contemporary Band Rings

Materials

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

Oscar Heyman Emerald and Diamond Ring in Platinum
By Oscar Heyman
Located in Boca Raton, FL
Oscar Heyman Emerald and Diamond Ring in Platinum. (6) Marquise Shape Green Emeralds weighing
Category

2010s Cluster Rings

Materials

Diamond, Emerald, Platinum

Estate Platinum Emerald and Diamond Ring
Located in Miami, FL
Composition: Platinum Stones: • 1 natural Marquise cut Colombian emerald that weighs 0.70ctw. • 22
Category

Mid-20th Century Unknown Modern More Rings

Materials

Emerald, Platinum

Contemporary Handmade Platinum Emerald and Diamond Ring
Located in Miami, FL
Composition: Platinum Stones: • 1 natural marquise cut emerald that weighs 0.80ctw. • 16 Old mine
Category

Mid-20th Century Unknown Edwardian More Rings

Materials

Diamond, Emerald, Platinum

11 Carats Diamonds and 14 Carats Emerald Vintage Set
Located in Saint-Ouen, FR
gold 18k ans set with approximately 11 carats of diamonds and 14 Carats of emeralds.
Category

Vintage 1960s Greek Drop Earrings

Materials

Diamond, Emerald

Burma Ruby Diamond and Emerald Brooch
Located in Tampa, FL
A superb quality Burmese ruby, diamond and emerald snail brooch featuring 5.00ct. apx. T.W. of
Category

Vintage 1950s Unknown Art Deco Brooches

Materials

Diamond, Emerald, Ruby, 22k Gold, Yellow Gold

Elegant 14K Yellow Gold Emerald and Diamond Earrings
Located in Holtsville, NY
exquisite assembly of 1.83 carats of marquise modified brilliant emeralds complemented by the subtle sparkle
Category

2010s American Artist Stud Earrings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

GIA Certified 17.8ct Zambian Green Emerald Diamond Earrings
By Ounce Collection Jewelry
Located in Los Angeles, CA
Handmade 18K White Gold Green Emeralds are GIA certified 17.8ct Total Emerald 7.61ct Total Diamond
Category

21st Century and Contemporary Dangle Earrings

Materials

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

18 Carat Gold Diamond Ruby and Emerald Cluster Earrings
Located in St Helens, GB
diamonds. A single round cut emerald and two marquise cut rubies to each. A total diamond weight of 0.75
Category

20th Century British Contemporary Stud Earrings

Materials

Diamond, Emerald, Ruby, Gold

Art Deco .38 Carat Marquise Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Marquise diamond weighing exactly 0.38 carat graded F-G color and SI2 clarity. Avery is further decorated
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

White Gold Yellow Gold Diamonds Emerald Sapphire Palm Bracelet "Squirre"
Located in Moscow, RU
diamonds, 1,47ct, cognac 1 oval full cut diamonds, 0,32ct, cognac 49 marquise cut emerald, 5,94 ct 54
Category

2010s Russian Contemporary Modern Bracelets

Materials

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

Art Deco Emerald and Diamond Navette Cluster Ring
Located in Essex, GB
This emerald and diamond ring has it all. A glowing bottle green marquise cut Colombian emerald set
Category

Mid-20th Century Victorian Cluster Rings

Materials

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

1950s Figural Canary Bird Rubelite, Diamond and Emerald Gold Lapel Brooch
Located in New York, NY
Weighing Approximately .45Cts Total Weight. One Faceted Green Emerald For Its Eye. Circa 1950's Made In The
Category

Vintage 1950s American Brooches

Materials

Diamond, Emerald, Rubelite, 18k Gold

14K Yellow Gold 1.21ctw Emerald Band, Size 7, Round Brilliant Emerald
Located in Holtsville, NY
* Total Item Weight: 2.3 grams * Band Width: 1.3mm * Gemstone Details: * Marquise-Cut Emeralds: * Carat
Category

2010s American Artist Band Rings

Materials

Emerald, 14k Gold, Yellow Gold

Retro 1950s 0.60 Carat Emerald 0.40 Diamonds Carat 18 Karat White Gold Ring
Located in Paris, FR
Beautiful ring set with 6 marquise cut emeralds and 6 brilliant cut diamonds. 18K white gold, 750
Category

Vintage 1950s French Retro Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Oscar Heyman Emerald Diamond Bracelet
By Oscar Heyman
Located in Greenwich, CT
, accented by marquise-shaped emeralds, mounted in platinum, numbered 82780, signed Oscar Heyman Brothers.
Category

21st Century and Contemporary American Tennis Bracelets

Materials

Emerald, Diamond, White Diamond, Platinum

GRS Certified 4.44 Carat Emerald Cocktail Ring
Located in London, GB
✦ Type : Natural and Minor ✦ Shape : Emerald Cut ✦ Emerald Weight : 4.44 Cts ✦ Diamonds Vs F/G Marquise
Category

2010s Zambian Contemporary Cocktail Rings

Materials

Emerald, 18k Gold, White Gold

​Art Deco Emerald Diamond Bracelet
Located in Greenwich, CT
Art Deco diamond and emerald bracelet, centering on a marquise-shaped diamond weighing
Category

Early 20th Century French Art Deco More Bracelets

Materials

Diamond, Emerald, White Diamond, Platinum

Very Fine Platinum, Emerald and Diamond Earrings
Located in Houston, TX
Emerald and Diamond, set in Platinum Emeralds = 7.83cts twt Marquise Diamonds = .79 cts twt
Category

21st Century and Contemporary American Drop Necklaces

Materials

Emerald

1920s Onyx Emerald Diamond Platinum Ring
Located in Beverly Hills, CA
accented with two Marquise Cut Diamonds, calibrated Emeralds and Onyx, and the engraved setting is
Category

Vintage 1920s American Art Deco Dome Rings

Materials

Diamond, Emerald, Onyx, Platinum

Hirsh Emerald and Diamond Papillon Ring
Located in London, GB
claws in a platinum setting featuring marquise and round diamonds. - 1.55 carat oval emerald - 2
Category

2010s British Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

Mid Century Colombian Emerald Diamond Navette Ring
Located in Theydon Bois, Essex
This, for us, has it all. A glowing bottle green marquise cut Colombian emerald weighing just under
Category

Mid-20th Century Victorian Cluster Rings

Materials

Diamond, Emerald, 18k Gold

Art Deco Emerald Diamond Platinum Bracelet
Located in Greenwich, CT
Art Deco tapering emerald and diamond bracelet, centering on a larger marquise-shaped emerald
Category

Early 20th Century American Art Deco More Bracelets

Materials

Diamond, Emerald, White Diamond, Platinum

Demner Emerald Ruby Sapphire Diamond Gold Earclips
By Demner
Located in New York, NY
One yellow gold and one white gold disc set with cabochon, marquise and brilliant-cut rubies
Category

Vintage 1980s Austrian Clip-on Earrings

Materials

Diamond, Emerald, Ruby, Sapphire, 18k Gold

Oscar Heyman Emerald Diamond Cluster Spray Earrings
By Oscar Heyman
Located in Greenwich, CT
Marquise and pear-shaped emerald and diamond cluster spray earrings, showcasing four emeralds
Category

21st Century and Contemporary American Clip-on Earrings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

14K Yellow Gold 19.15ct Emerald, Sapphire Diamond Pendant Necklace
Located in Holtsville, NY
-colorless round brilliant diamonds totaling 0.22 carats, along with a 0.22-carat marquise brilliant emerald
Category

2010s American Artist Pendant Necklaces

Materials

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

HARRY WINSTON Magnificent Diamond Necklace with Emerald Diamond Pendant
By Harry Winston
Located in Greenwich, CT
Marquise-shaped diamond necklace with emerald and diamond cluster drop pendant, the necklace
Category

20th Century American Drop Necklaces

Materials

Diamond, Emerald, Platinum

Antique Emerald 1.45 Carat Diamond Platinum Engagement Ring
Located in Tampa, FL
. Twinkling single cut diamonds and marquise cut synthetic emeralds embellish this stunning antique engagement
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

18 Carat Gold Emerald and Diamond Cluster Ring
Located in St Helens, GB
four marquise cut emeralds and eleven round brilliant cut diamonds to form a 13mm x 18mm head of floral
Category

20th Century British Contemporary Cluster Rings

Materials

Diamond, Emerald, 18k Gold

14K Yellow Gold 4.76ctw Emerald Diamond Cocktail Ring Size 7
Located in Holtsville, NY
saturation, this emerald radiates sophistication. The design is enhanced by six marquise brilliant emeralds
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Ruby Emerald Diamond Gold Ribbon Clip On Earrings
Located in Dallas, TX
unique. Each earring is set with two 5x2.5mm cabochon marquise cut emeralds, three 2.7mm brilliant cut
Category

Late 20th Century Clip-on Earrings

Materials

Diamond, Emerald, Ruby, 14k Gold

14K Yellow Gold 1.77ctw Emerald Diamond Cocktail Ring Size 7
Located in Holtsville, NY
stone are two 0.11-carat marquise brilliant emeralds, adding an extra layer of charm. Designed for women
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

2.70 Carat Emerald Ballerina Style Diamond Cocktail Ring
Located in Pikesville, MD
ballerina style ring features a very nice quality 2.70 carat marquise cut vivid emerald with medium
Category

1990s Unknown Retro Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Colombian Muzo Emerald Gypsy Set 18 Karat Gold Ring
By Thesis Gems and Jewelry
Located in Berkeley, CA
1.55 carat marquise cut Colombian Muzo Emerald is set in a hand carved wax/cast 18 karat gold gypsy
Category

2010s American Artisan Engagement Rings

Materials

Emerald, 18k Gold

14K Yellow Gold 0.55 Carat Emerald Diamond Cocktail Ring Size: 6.75
Located in Holtsville, NY
This exquisite 14K Yellow Gold Cocktail Ring features a striking 0.55-carat marquise modified
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Emerald, Yellow Gold

1960s International Watch Company, Emerald and Diamond Platinum Concealed Watch
Located in New york, NY
emeralds reaching approximately 6.0 carats in good medium and dark green Emeralds and six marquise cut
Category

Vintage 1960s Swiss Wrist Watches

Materials

Emerald, Platinum

14K Yellow Gold 10.89ct Ruby, Emerald Diamond Cocktail Ring Size 7
Located in Holtsville, NY
heavily included clarity. Surrounding the ruby are 14 marquise brilliant emeralds, totaling 0.26 carats
Category

2010s American Artist Cocktail Rings

Materials

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

Emerald and Diamond 18 Carat White Gold Daisy Cluser Ring
Located in St Helens, GB
surrounding. The natural emeralds are marquise cut and measure 3.8mm x 6mm approx. Believed to be Columbian
Category

21st Century and Contemporary Unknown Contemporary Cluster Rings

Materials

Emerald, 18k Gold

Diamond Spray Pin in Platinum, over 12.50 Carat in Round, Marquise, Baguette
Located in Surfside, FL
carats in round, marquise, baguette & emerald cut diamonds. Diamonds estimate: F-G color, VS-SI clarity
Category

21st Century and Contemporary Brooches

Materials

Diamond, Platinum

Carnelian Emerald Ruby Diamond Yellow Gold Cat Brooch Pin
Located in Gainesville, FL
following: Eyes: (2) marquise shaped emerald gemstones and (6) round cut natural diamonds. Nose: (1) round
Category

Late 20th Century Unknown Modern Brooches

Materials

Carnelian, Diamond, Emerald, Ruby, 18k Gold, Yellow Gold

Ruby, Sapphire, Emerald Diamond Butterfly Pendant/ Enhancer 14K Gold
Located in Scottsdale, AZ
Vintage ruby, sapphire, emerald, and diamond butterfly pendant/ enhancer set in 14K gold. There are
Category

Mid-20th Century Pendant Necklaces

Materials

Diamond, Emerald, Ruby, Sapphire, 14k Gold, Rose Gold, White Gold, Yello...

Antique 15 Carat Gold Garnet Cabochon Emerald and Pearl Pendant
Located in St Helens, GB
gold chain is the large oval shaped cluster drop. Formed with a full pearl surround with four marquise
Category

Antique 19th Century British Victorian Pendant Necklaces

Materials

Emerald, Garnet, Cultured Pearl, 15k Gold

Elegant 14K Emerald Eternity Band Ring - 3.23ctw Gemstones - Size 6.75 Vintage
Located in Holtsville, NY
Emerald Marquise Ring is a testament to the delicate beauty found in the heart of nature. Crafted with
Category

2010s Indian Band Rings

Materials

Emerald, 14k Gold, Yellow Gold

14K Yellow Gold 15.40ctw Emerald Diamond Drop Earrings, Pear Modified Brillian
Located in Holtsville, NY
These 14K Yellow Gold Emerald & Diamond Drop Earrings showcase a stunning combination of marquise
Category

2010s American Artist Drop Earrings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Daria de Koning Emerald, Sapphire, Moonstone, Iolite and Apatite Ring
By Daria de Koning
Located in Los Angeles, CA
A sustainable emerald from the Gemfield Mines, weighing 4.86ctw, is the centerpiece of this unique
Category

2010s American Artist Cocktail Rings

Materials

White Diamond, Iolite, Moonstone, Blue Sapphire, Emerald, 18k Gold

Emerald diamond ring white gold w/ over 0.80 cts diamonds 2 cts of emeralds
Located in Surfside, FL
green marquise shape emeralds. Size 7.This Diamond/Emerald ring is currently size 7 and some items can
Category

20th Century Engagement Rings

Materials

White Gold, Yellow Gold

David Morris 18 Carat Gold 1.5 Carat Diamond Emerald Onyx Bear Brooch
Located in St Helens, GB
with marquise cut emeralds and the nose a triangular cut onyx. CONDITION ; Excellent. A very crisp
Category

Late 20th Century British Contemporary Brooches

Materials

Diamond, Emerald, Onyx, Gold

Lady s 18 Karat Yellow Gold Diamond, Ruby and Emerald Panther Bracelet or Brooch
Located in Mansfield, OH
carefully set with a marquise-shaped emerald, 1 - faceted, 1 - cabochon = .20ct. Total weight, medium dark
Category

Vintage 1980s Modern Modern Bracelets

Materials

Diamond, Emerald, Ruby, 18k Gold

Art Deco Diamond and Emerald Ring
Located in Los Angeles, CA
three baguette diamonds across the top. Total diamond weight is 1 carat. There are two marquise cut
Category

Unknown Cocktail Rings

Materials

Diamond

Georgian 18ct Gold Yellow Topaz and Emerald Navette Cluster Ring, Circa 1815
Located in Lancashire, Oldham
We are thrilled to offer this Georgian 18ct yellow gold, round yellow topaz and emerald marquise
Category

Antique 1810s British George III Cluster Rings

Materials

Emerald, Topaz, 18k Gold, Gold

Alexandra Mor One-of-a-Kind Diamonds and Muzo Emerald Nuggets Arched Earrings
By Alexandra Mor
Located in New York, NY
Emerald Nuggets and a mixture of Fancy, Brilliant, Emerald, Oval, Marquise, Heart-shape, and Radiant-Cut
Category

21st Century and Contemporary American Contemporary Chandelier Earrings

Materials

Diamond, Emerald, 18k Gold, Platinum

Antique 1.45 Carat Diamond Emerald Platinum Engagement Ring
Located in Tampa, FL
. Twinkling single cut diamonds and marquise cut synthetic emeralds embellish this stunning antique engagement
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Tiger Rigid 14 Karat Yellow Gold Emerald and Black Enamel Necklace
Located in Miami, FL
is in very good condition. The tiger's eyes are made of marquise cut Emeralds and its stripes are in
Category

21st Century and Contemporary Unknown Modern More Necklaces

Materials

14k Gold

Bague De Fiançailles En or 18 Carats En Diamants Et Émeraudes Navettes
Located in VERSAILLES, FR
Magnifique bague en or 18 carats sertie au centre d’un diamant de taille brillant pesant 0.50 carat environ entouré de 4 diamants pesant 0.40 carat environ et de 6 émeraudes de très ...
Category

21st Century and Contemporary French Modern Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Large Gold Gem-Set Owl Pin
Located in Greenwich, CT
approximately 4.26 total carats, with two marquise-shaped emerald eyes and cabochon-cut, pear-shaped emerald
Category

20th Century French Brooches

Materials

Diamond, Emerald, 18k Gold

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Marquise Emerald For Sale on 1stDibs

On 1stDibs, you can find the most appropriate marquise emerald for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. You can easily find a 181 antique edition and 212 modern creations to choose from as well. Making the right choice when shopping for a marquise emerald may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Creating a marquise emerald has been a part of the legacy of many jewelers, but those produced by Georgios Collections Inc, LB Exclusive and OGI Ltd are consistently popular. A marquise cut version of this piece has appeal, but there are also emerald cut and pear cut versions for sale. When shopping for a marquise emerald, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Marquise Emerald?

The price for a marquise emerald starts at $175 and tops out at $750,000 with these rings, on average, selling for $5,584.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold 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.