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Christian Dior Vintage 1970 Emerald Green Oval Crystals Marquise Dome Brooch
By Christian Dior
Located in Wokingham, England
Christian Dior Vintage 1970 Emerald Dark Green Oval Crystals Marquise Rectangle Circle Dome Peacock
Category

Vintage 1970s German Art Nouveau Brooches

Materials

Silver Plate

Emerald Pear Shape and Diamond Marquise Round Dangle Earring in 18K White Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Diamond Earring features 1.10 cts diamond and 9.92 cts emerald in 18k white gold. The
Category

21st Century and Contemporary American Contemporary More Earrings

Materials

Diamond, Emerald, White Gold

Emerald Pear Shape and Diamond Marquise Round Dangle Earring in 18K White Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Diamond Earring features 1.41 cts diamond and 9.77 cts emerald in 18k white gold. The
Category

21st Century and Contemporary American Contemporary More Earrings

Materials

Diamond, Emerald, White Gold

30 Carat Diamond Marquise, Pear Round Cluster Chandelier Earrings
Located in Chicago, IL
30 Carat Diamond Marquise, Pear & Round Cluster Chandelier Earrings These spectacular chandelier
Category

2010s American Contemporary Chandelier Earrings

Materials

Diamond, Emerald, 18k Gold

5.12 Carat Emerald 1.88 Ct SI/H Marquise Diamond Brooch Pendant 18k White Gold
By Spectrum Jewels
Located in Diera, Dubai
& COLOUR H-I ) Zambian Emerald Wt. :- 5.12 Ct. Brooch Size :- 24 mm approx. ✦ Sizing
Category

21st Century and Contemporary Indian Modern Brooches

Materials

Diamond, Emerald, 18k Gold, White Gold

14K Natural Emerald Band
By Rose and Choc
Located in Wallingford, CT
Off set emerald marquise band Metal: 14k yellow gold Stone: Natural emerald Stone Shape: Marquise
Category

2010s Contemporary Cocktail Rings

Materials

Emerald, 14k Gold

0.92 Carat SI/HI Marquise Round Emerald Cut Diamond Ring 18 Karat White Gold
Located in Diera, Dubai
The ring is a size 7 and may be resized to larger or smaller upon request. FOLLOW SPECTRUM JEWELS storefront to view the latest collection exclusive pieces. Spectrum Jewels is ...
Category

21st Century and Contemporary Indian Modern More Rings

Materials

Diamond, 18k Gold, White Gold

2.75 Ct SI Clarity HI Color Emerald Marquise Diamond Ring 18 Karat White Gold
Located in Diera, Dubai
The ring is a size 7 and may be resized to larger or smaller upon request. FOLLOW SPECTRUM JEWELS storefront to view the latest collection exclusive pieces. Spectrum Jewels is ...
Category

21st Century and Contemporary Indian Modern Dome Rings

Materials

Diamond, 18k Gold, White Gold

2ct, SI/HI Diamond Marquise Pear Emerald Cut Diamond Ring 14 Karat White Gold
Located in Diera, Dubai
Item Code :- SER-22759 (14k) Gross Wt. :- 4.51 gm 14k Solid White Gold Wt. :- 4.10 gm Natural Diamond Wt. :- 2.05 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 COLOR H-I ) Ring Size :-...
Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Diamond, White Gold, 14k Gold, Gold

Vintage Hobe Red Enamel Emerald Crystal Marquise Fruit Brooch Earrings 1950s
By Hobé Jewelry
Located in Wilmslow, GB
. Including emerald green marquise and lime green stones leading to the dramatic contrast of the red enamel
Category

20th Century American Brooches

2 Ct Natural Emerald, 1 Oval Ruby Cocktail Marquise Shape Ring 14 Kt Yellow Gold
Located in New York, NY
emerald stones. There are 9 fine quality oval-shaped emerald stones, all perfectly matching and set in a
Category

2010s Cocktail Rings

Materials

Emerald, Ruby, 14k Gold, Yellow Gold

RUCHI Multi-Colored Emerald Marquise Cut Sapphire Yellow Gold Eternity Band
By Ruchi New York
Located in New York, NY
18K Yellow Gold Multicolor Sapphire: 24 stones - 5.84ct Total weight.
Category

2010s Hong Kong Contemporary Band Rings

Materials

Sapphire, Gold, 18k Gold, Yellow Gold

Platinum Marquise, Tapers Baguette Cut Diamonds Engagement Ring
Located in Antwerp, BE
SOLID PLATINUM SET WITH EMERALD CUT & MARQUISE CUT DIAMONDS RING MATERIAL: Platinum WEIGHT: 7.6
Category

20th Century European Artisan Engagement Rings

Materials

Diamond, Platinum

Christian Dior 1961 Large Emerald Trio Crystal Circle Marquise Tear Drop Brooch
By Christian Dior
Located in Wokingham, England
Christian Dior 1961 Vintage Large Oval Emerald Green Trio Layers Crystals Circle Round Marquise
Category

Vintage 1960s German Art Deco Brooches

Materials

Silver Plate

Diamond Emerald Flower Ring
Located in New York, NY
Diamond & Emerald Flower Cocktail Ring 1 round cut emerald surrounded by 6 marquise cut diamonds
Category

Vintage 1980s Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Emerald and Diamond Chandelier Earrings
Located in Nantucket, MA
A cluster of faceted oval, marquise and pear-shaped Columbian emeralds within a ring of pave`-set
Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, Emerald, 14k Gold, Sterling Silver

Emerald Cut Marquise Diamond Open Bypass Ring 14 Karat White Gold Fine Jewelry
By Spectrum Jewels
Located in Diera, Dubai
This Emerald Cut Marquise Diamond 14 Karat White Gold Open Bypass Ring features round cut diamonds
Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Emerald Cut Marquise Diamond Open Bypass Ring 18 Karat White Gold Fine Jewelry
By Spectrum Jewels
Located in Diera, Dubai
This Emerald Cut Marquise Diamond 18 Karat White Gold Open Bypass Ring features round cut diamonds
Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Emerald and Diamond Chandelier Earrings
Located in Nantucket, MA
A stunning pair of chandelier earrings with marquise cut emeralds creating a flower pattern with a
Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, Emerald, 18k Gold, Sterling Silver

Emerald Cut and Marquise Diamond Open Cuff Ring 14K White Gold Fine Jewelry
By Spectrum Jewels
Located in Diera, Dubai
Emerald Cut and Marquise Diamond Open Cuff Ring 14K White Gold Fine Jewelry This exquisite ring
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Diamond Emerald Art Deco Style Marquise Shape Drop Earrings in 18K White Gold
Located in Bangkok, TH
These marquise-shaped drop earrings feature a brilliant round diamond at the center. Surrounded by
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Emerald Cluster Earrings 14Kk Yellow Gold
Located in Sugar Land, TX
♥ Product Summary ♥ Main Stone: Emerald Metal Choice: 14K Yellow Gold Stone Cut: Marquise
Category

21st Century and Contemporary North American Lever-Back Earrings

Materials

Emerald, 14k Gold

3.70 Carat Natural Emeralds Diamonds Rosè Gold Earrings
Located in New Delhi, Delhi
lustrous Natural Emeralds of 3,70 carats, in perfect marquise cut, vibrant green color, and pavè of Natural
Category

21st Century and Contemporary Drop Earrings

Materials

Emerald, 14k Gold

Emerald and Diamond Platinum Bracelet
Located in New York, NY
Platinum Bracelet featuring 3.37ct Total Weight of Emeralds, 6.74ct Total Weight of Round Diamonds
Category

2010s American Modern Link Bracelets

Materials

Diamond, Emerald, Platinum

Colombian Emerald Ring, 2.50 carats
Located in New Orleans, LA
This striking ring showcases a captivating marquise cut Colombian emerald, cut in an elegant oblong
Category

21st Century and Contemporary Modern Signet Rings

Materials

Diamond, Emerald, Yellow Gold

Golden Bracelet with Diamonds and Emeralds
Located in AMSTELVEEN, NH
marquise and brilliant shaped diamonds are expertly set into the gold, creating a dazzling display of light
Category

Early 20th Century Link Bracelets

Materials

Diamond, Emerald, 18k Gold

Emerald Ring, Diamond Emerald Wedding Ring in 18K Yellow Gold
By VR Jewels
Located in New York, NY
Diamond and Emerald Ring in 18K Gold which perfectly goes with your personality and also helps you
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

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

Oval Sapphire and Marquise Diamond Bracelet
By GEMME
Located in New York, NY
Marquise shaped Diamonds weighing 4.60 Carats. Round Diamonds 0.60 Carats. 16.95 Carats Total. Each Diamond
Category

2010s American Tennis Bracelets

Materials

Diamond, Sapphire, Platinum

Oval Ruby and Marquise Diamond Bracelet
By GEMME
Located in New York, NY
Marquise shaped Diamonds weighing 4.60 Carats. Round Diamonds 0.60 Carats. 16.95 Carats Total. Each Diamond
Category

2010s American Tennis Bracelets

Materials

Diamond, Ruby, Platinum

RARE GRS Certified 47.73 Carat Emerald Pendant
By bo·be jewellery
Located in COTTESLOE, AU
Stone details: Emerald: 47.73ct Origin: Brazil Cut: polished Shape: rectangular cushion Marquise
Category

21st Century and Contemporary Brazilian Drop Necklaces

Materials

Diamond, Emerald, 18k Gold

14 Carats Emeralds and Diamond Earrings
By Antinori Fine Jewels
Located in Chicago, IL
Each set with 39 marquise-shaped emeralds, decorated with brilliant-cut diamonds. emeralds
Category

2010s Italian Modern Stud Earrings

Materials

Diamond, White Diamond, Emerald

Platinum 2 Center Marquise Cut Diamonds Art Deco Ring, Circa 1920
Located in Palm Desert, CA
Set in Platinum, in the center, are two Marquise cut Diamonds weighing 0.66 carats in total, Color
Category

Early 20th Century American Art Deco More Rings

Materials

Diamond, Emerald, Platinum

Modern Gold Natural Multicolor Marquise Colorless Diamond Statement Ring
Located in Los Angeles, CA
multicolor gemstones, including marquise-cut ruby, sapphire, and emerald, each measuring approximately 6 x 3
Category

21st Century and Contemporary Modern Fashion Rings

Materials

Diamond, Gold, 18k Gold

1.40Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
Title: Exquisite 1.40ct Loose Marquise Shape Colombian Emerald Gemstone Product Description
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.36Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
Title: Exquisite 1.36ct Loose Marquise Shape Colombian Emerald Gemstone Product Description
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.78Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
Exquisite 1.78ct Loose Marquise Shape Colombian Emerald Gemstone Product Description: Presenting
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.79Ct Natural Loose Emerald Marqiuse Shape 3 Pcs
Located in רמת גן, IL
Captivating 1.79ct Loose Marquise Shape Colombian Emerald Gemstone Product Description: Behold
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

0.82Ct Natural Loose Emerald Marqiuse Shape 3 Pcs
Located in רמת גן, IL
Captivating 0.82ct Loose Marquise Shape Colombian Emerald Gemstone Product Description: Behold
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

14k Yellow Gold Emerald Diamond Flower Earrings
By Non Branded
Located in Lexington, KY
came from an enchanted green forest. The bright marquise cut emeralds are vivid green and perfectly
Category

Vintage 1980s Contemporary Drop Earrings

Materials

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

18K White Gold Emerald Diamond Bracelet
Located in Hong Kong, HK
with the vibrant allure of natural emeralds. Each emerald is expertly hand-selected for its deep green
Category

2010s Hong Kong Modern Modern Bracelets

Materials

Diamond, Emerald, White Gold

Vintage GIA 1.00 carat emerald diamond platinum cocktail ring
Located in Beverly Hills, CA
-certified Zambian emerald glowing with deep lush green color. The marquise cut gem is surrounded by a halo
Category

Vintage 1980s Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

Panther Emeralds Malachite Black Enamel 925 Silver Cufflinks
By AVGVSTA
Located in Milano, IT
Silver 925 panther cufflinks embellished by emeralds on his eyes and a half sphere in malachite
Category

2010s Italian Cufflinks

Materials

Emerald, Malachite, Silver, Enamel

Amulet Container Bracelet in 18kt Gold, Emerald Diamond
By Estaa
Located in Mumbai, IN
) and a striking marquise-cut emerald (0.15 cts). These containers, sealed without visible openings
Category

2010s Indian Revival Bangles

Materials

Diamond, Emerald, 18k Gold, Gold

VINTAGE EMERALD DIAMOND Ring 18K White Gold
Located in Buckingham , Buckinghamshire
designed to sit beautifully on the hand. The centre stone is a marquise-cut emerald measuring approximately
Category

Vintage 1980s Retro Cluster Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

3ct Emerald Diamond Pendant Set in 18ct Yellow Gold
Located in London, GB
1.30ct of natural marquise cut diamonds. Total Emerald Weight: 3.0ct Total Diamond weight: 1.30ct
Category

2010s Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

1.33 Ct GUILD Certificate Natural No Oil Russia Emerald Intense Green Color
Located in bangkok, TH
Natural No Oil Russia Emerald Intense Green Color Gemstone Guild Certificated EMA69 Name : Emerald
Category

2010s Loose Gemstones

Materials

Emerald

2.06 Ct Guild Certificate Natural Emerald Russia Cabochon Gemstone vivid green
Located in bangkok, TH
EMA84 2.06 Ct Guild Certificate Natural Emerald Russia Cabochon chon Gemstone vivid green color eye
Category

2010s Loose Gemstones

Materials

Emerald

Aquamarine Snake Ring Emerald Eyes Victorian Style
By J DAUPHIN
Located in Los Angeles, CA
gold, marquise-cut aquamarine, emerald eyes Style: Victorian serpent ring, alchemical, symbolic
Category

2010s Indian Victorian More Rings

Materials

Aquamarine, Emerald, Gold, 14k Gold, Yellow Gold

14K Yellow Gold Emerald and Diamond Earrings
Located in Laguna Beach, CA
10k gold. The natural emeralds are marquise shape and have a very nice color, 1.00 total carats. The
Category

Mid-20th Century Dangle Earrings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Aquamarine Snake Ring Cocktail Ring Emerald Ruby
By J DAUPHIN
Located in Los Angeles, CA
a vivid marquise-cut aquamarine, two emeralds, and two rubies. Designed as part of J Dauphin’s
Category

2010s Indian Victorian Cocktail Rings

Materials

Aquamarine, Emerald, Ruby, 14k Gold, Gold Plate, Brass

Antique Art Deco 1930s 25.30 Carat Diamond Bracelet with Emeralds
Located in New York, NY
features accenting Marquise cut Emeralds. Circa 1930s Size 7 inches
Category

Vintage 1930s Art Deco Link Bracelets

Materials

Diamond, Emerald, Platinum

Bague marquise vintage en émeraude et diamants
Located in PARIS, FR
Bague marquise vintage en or 18 carats 750 millièmes) ornée d’un cabochon d'émeraude d'env. 1,85
Category

Late 20th Century French Retro Fashion Rings

Materials

Diamond, Emerald, 18k Gold

53 Carat Colombian Diamond Emerald 18K White Necklace
Located in Chicago, IL
29.0 Carat Diamond & 24.0 Carat Colombian Emerald 18K White Gold Bib Necklace Offered is a
Category

2010s American Contemporary Multi-Strand Necklaces

Materials

Diamond, Emerald, Platinum

Cartier 18K Gold Platinum Diamond Emerald Leaf Brooch
By Cartier
Located in Flushing, NY
Cartier 18K Gold & Platinum Diamond Emerald Leaf Brooch Marked: CARTIER Approximate Dimensions: 7
Category

20th Century Brooches

Materials

Diamond, Emerald, Gold, 18k Gold, Platinum

1950s Impressive Lace Deco Design Diamond Emerald Necklace
Located in Miami, FL
approximately 304.0 grams. The entire openwork lace pattern surface is embellished with emerald flowers and
Category

Vintage 1980s Retro Choker Necklaces

Materials

Diamond, Emerald, 18k Gold

22.04 cts of Emerald and sapphire Bracelet
Located in New York, NY
gold weighing 46.8 grams. Adorned with 321 white round diamonds totaling 2.76 carats, 55 marquise-cut
Category

2010s Indian Modern Link Bracelets

Materials

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

18K Gold Emerald - 2.76 Diamonds, - Engagement Cocktail
Located in Sant Josep de sa Talaia, IB
ounces) Gemstones: Emerald: Type: Emerald, green gemstone Cut: Marquise Quantity: 1 Dimensions: 0.63 x
Category

21st Century and Contemporary Artist Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow 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.