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Fancy Greenish Blue Diamonds

GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2
GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2

GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2

$4,797Sale Price|49% Off

W 0.21 in D 0.13 in L 0.45 in

GIA Certified 1.11ct Fancy Vivid Greenish Blue Diamond, Marquise, VVS2

Located in New York, NY

Fancy Vivid Greenish Blue color — an extraordinary hue reminiscent of tropical waters and glacial ice

Category

2010s Loose Gemstones

Materials

Blue Diamond

GIA Certified 1.43ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1
GIA Certified 1.43ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

GIA Certified 1.43ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

$5,497Sale Price|60% Off

W 0.32 in D 0.14 in L 0.21 in

GIA Certified 1.43ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

Located in New York, NY

Weight: 1.43ct Clarity: VS1 Color: Fancy Vivid Greenish Blue Measurements: 8.08 x 5.12 x 3.44 mm Depth

Category

2010s Loose Gemstones

Materials

Blue Diamond

GIA Certified 1.35ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1
GIA Certified 1.35ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

GIA Certified 1.35ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

$7,497Sale Price|49% Off

W 0.24 in D 0.16 in L 0.24 in

GIA Certified 1.35ct Fancy Vivid Greenish Blue Diamond, Emerald Cut, VS1

Located in New York, NY

Diamond Weight: 1.35ct Clarity: VS1 Color: Fancy Vivid Greenish Blue Measurements: 5.91 x 5.89 x 4.03 mm

Category

2010s Loose Gemstones

Materials

Blue Diamond

GIA Certified 2.03 Carat Fancy Light Greenish Blue Heart-Shaped Diamond Ring
GIA Certified 2.03 Carat Fancy Light Greenish Blue Heart-Shaped Diamond Ring

GIA Certified 2.03 Carat Fancy Light Greenish Blue Heart-Shaped Diamond Ring

Located in Chicago, IL

GIA Certified 2.03 Carat Fancy Light Greenish Blue Heart-Shaped Diamond Ring The centerpiece of

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Blue Diamond, Platinum

Emilio Jewelry GIA Certified 2.50 Carat Fancy Intense Greenish Blue Diamond Ring
Emilio Jewelry GIA Certified 2.50 Carat Fancy Intense Greenish Blue Diamond Ring

Emilio Jewelry GIA Certified 2.50 Carat Fancy Intense Greenish Blue Diamond Ring

By Emilio!

Located in New York, NY

certified natural fancy intense greenish blue diamond set in the center. If you wish for another look

Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Diamond

GIA Certified 0.48 Carat Fancy Light Greenish Blue SI1 Clarity Diamond
GIA Certified 0.48 Carat Fancy Light Greenish Blue SI1 Clarity Diamond

GIA Certified 0.48 Carat Fancy Light Greenish Blue SI1 Clarity Diamond

Located in บางรัก, TH

carat Measurements: 5.9 x 4.33 x 2.56 mm Color Grade: Fancy Light Greenish Blue FEATURES OF THE DIAMOND

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.43 Carat Fancy Light Greenish Blue VS2 Clarity Diamond
GIA Certified 0.43 Carat Fancy Light Greenish Blue VS2 Clarity Diamond

GIA Certified 0.43 Carat Fancy Light Greenish Blue VS2 Clarity Diamond

Located in บางรัก, TH

fancy light greenish blue diamond is a rare and stunning diamond that combines subtle hues of green and

Category

2010s Asian Loose Gemstones

Materials

Diamond

Diamond Cluster Cocktail Ring with 3.51ct Fancy Brownish Greenish Yellow Cushion
Diamond Cluster Cocktail Ring with 3.51ct Fancy Brownish Greenish Yellow Cushion

Diamond Cluster Cocktail Ring with 3.51ct Fancy Brownish Greenish Yellow Cushion

Located in New York, NY

Cocktail Ring in 18K White & Rose Gold With GIA Certified 3.51ct Fancy Brownish Greenish Yellow

Category

2010s Unknown Modern Cocktail Rings

Materials

Diamond, Blue Diamond, 18k Gold, Rose Gold, White Gold

GIA Certified 1.39 Carat Cushion Natural Greenish Blue Diamond Engagement Ring
GIA Certified 1.39 Carat Cushion Natural Greenish Blue Diamond Engagement Ring

GIA Certified 1.39 Carat Cushion Natural Greenish Blue Diamond Engagement Ring

Located in Trumbull, CT

light greenish-blue VVS2 diamond. Meticulously crafted, this ring can also be converted into a pendant

Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Blue Diamond, 18k Gold

Emilio Jewelry Gia Certified Fancy Intense Blue Diamond Ring
Emilio Jewelry Gia Certified Fancy Intense Blue Diamond Ring

Emilio Jewelry Gia Certified Fancy Intense Blue Diamond Ring

By Emilio!

Located in New York, NY

+ Fancy Intense Greenish Blue 44 white diamonds totaling about 0.28 carats, 8 pink diamonds totaling

Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Diamond

X Glaciar Monach
X Glaciar Monach

X Glaciar Monach

$3,430,549

W 3.47 in D 0.83 in L 2.64 in

X Glaciar Monach

Located in Stockholm, SE

Featuring a 1.07carat GIA-certified Fancy Light Greenish Blue diamond with VS1 clarity and no

Category

2010s Art Nouveau Brooches

Materials

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

Recent Sales

2.24 Carat GIA Cert Natural Fancy Greenish Blue Diamond Platinum Ring
2.24 Carat GIA Cert Natural Fancy Greenish Blue Diamond Platinum Ring

2.24 Carat GIA Cert Natural Fancy Greenish Blue Diamond Platinum Ring

Located in Calabasas, CA

A magnificent 2.24ct Natural Fancy Light Greenish Blue Diamond Ring. The Greenish Blue center stone

Category

2010s American Modern More Rings

Materials

Blue Diamond, Diamond, Pink Diamond, Platinum

GIA Graded 0.95 Carat Fancy Light Greenish-Blue Diamond Internally Flawless Ring
GIA Graded 0.95 Carat Fancy Light Greenish-Blue Diamond Internally Flawless Ring

GIA Graded 0.95 Carat Fancy Light Greenish-Blue Diamond Internally Flawless Ring

Located in Warrington, PA

carat Fancy Light Greenish-Blue Diamond Internally Flawless ring. The center stone displays a lovely

Category

Late 20th Century American Art Deco Engagement Rings

Materials

Diamond, White Diamond, Blue Diamond, Platinum

GIA Certified .50 Natural Pink and .53 carat Natural Blue Diamond Platinum Ring
GIA Certified .50 Natural Pink and .53 carat Natural Blue Diamond Platinum Ring

GIA Certified .50 Natural Pink and .53 carat Natural Blue Diamond Platinum Ring

Located in Whippany, NJ

natural fancy greenish-blue radiant diamond, certified by GIA with the reference number 6127746755. This

Category

2010s American Modern Cocktail Rings

Materials

White Diamond, Blue Diamond, Pink Diamond, Platinum

Diamond Gold Band Ring
Diamond Gold Band Ring

Diamond Gold Band Ring

Located in Berlin, DE

1980s. 5 rows of brilliant-cut fancy greenish blue intense diamonds of overall circa 5,24 carat

Category

Late 20th Century Band Rings

Materials

Diamond, 18k Gold, White Gold

Alexander GIA 1.02 Carat Fancy Greenish Blue Diamond with Fancy Pink Diamonds
Alexander GIA 1.02 Carat Fancy Greenish Blue Diamond with Fancy Pink Diamonds

Alexander GIA 1.02 Carat Fancy Greenish Blue Diamond with Fancy Pink Diamonds

By Alexander Beverly Hills

Located in BEVERLY HILLS, CA

Exquisite and very rare fancy greenish blue diamond with Argyle fancy pink diamonds, GIA certified

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Blue Diamond, Pink Diamond, 18k Gold, Rose Gold

GIA Certified 0.44 Carat Fancy Greenish Blue SI2 Clarity Diamond
GIA Certified 0.44 Carat Fancy Greenish Blue SI2 Clarity Diamond

GIA Certified 0.44 Carat Fancy Greenish Blue SI2 Clarity Diamond

Located in บางรัก, TH

Measurements: 6.56 x 4.25 x 2.25 mm Color Grade: Fancy Greenish Blue FEATURES OF THE DIAMOND: This fancy

Category

2010s Asian Loose Gemstones

Materials

Diamond

1.5ct Fancy Light Greenish Blue Diamond Earrings
1.5ct Fancy Light Greenish Blue Diamond Earrings

1.5ct Fancy Light Greenish Blue Diamond Earrings

By Rare Colors

Located in New York, NY

Blue Radiant Cut VVS2 Clarity Surrounded by Fancy Pink & White Diamonds Handset in 18k Rose and White

Category

2010s Dangle Earrings

Materials

Blue Diamond, 18k Gold

GIA Certified 0.45 Carat Fancy Light Greenish Blue VVS2 Clarity Diamond
GIA Certified 0.45 Carat Fancy Light Greenish Blue VVS2 Clarity Diamond

GIA Certified 0.45 Carat Fancy Light Greenish Blue VVS2 Clarity Diamond

Located in บางรัก, TH

Measurements: 6.07 x 4.21 x 2.39 mm Color Grade: Fancy Light Greenish Blue FEATURES OF THE DIAMOND: This

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified Multi-Color Diamond Cocktail Ring
GIA Certified Multi-Color Diamond Cocktail Ring

GIA Certified Multi-Color Diamond Cocktail Ring

Located in Boca Raton, FL

. GIA certified cushion cut 0.55ct fancy greenish blue diamond, GIA certificate #2175086037

Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, White Diamond, Blue Diamond, Yellow Diamond, Pink Diamond, 18k ...

1.69 Carat Fancy Light Greenish Blue Diamond Two Color Gold Ring
1.69 Carat Fancy Light Greenish Blue Diamond Two Color Gold Ring

1.69 Carat Fancy Light Greenish Blue Diamond Two Color Gold Ring

By Tamir

Located in Beverly Hills, CA

An elegant 1.69ct G.I.A certified fancy light greenish blue radiant cut diamond ring. This blue

Category

21st Century and Contemporary American Engagement Rings

Materials

Blue Diamond, Pink Diamond, Rose Gold, White Gold

1.60ct Colored Diamond Ring 14K Gold Fancy Yellow Greenish -
1.60ct Colored Diamond Ring 14K Gold Fancy Yellow Greenish -

1.60ct Colored Diamond Ring 14K Gold Fancy Yellow Greenish -

Located in Sant Josep de sa Talaia, IB

. Completing the design, two extraordinary Fancy Greenish Blue marquise-cut diamonds (0.80ct total) add a

Category

21st Century and Contemporary European Contemporary Cocktail Rings

Materials

Diamond, 14k Gold

1.60ct Natural Fancy Greenish Blue Diamond Ring

1.60ct Natural Fancy Greenish Blue Diamond Ring

Located in Chestnut Hill, MA

a color and clarity of fancy light greenish blue/SI1 with GIA certificate #1142950883, the center

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified White Gold Fancy Greenish Blue 1.52 ct Diamond & 2.74 ct Ring

GIA Certified White Gold Fancy Greenish Blue 1.52 ct Diamond & 2.74 ct Ring

By HY JEWELLERY

Located in Knightsbridge, GB

FANCY GREENISH BLUE DIAMOND RING - 4.26 CT Set in 18Kt White gold Total fancy diamond weight

Category

2010s British Modern Engagement Rings

Materials

White Diamond, Blue Diamond, Pink Diamond, 18k Gold

GIA Certified 2.76 Carat TW Radiant Natural Fancy Light Greenish Blue Diamonds
GIA Certified 2.76 Carat TW Radiant Natural Fancy Light Greenish Blue Diamonds

GIA Certified 2.76 Carat TW Radiant Natural Fancy Light Greenish Blue Diamonds

Located in New York, NY

, Natural Fancy Light Greenish Blue, Even Color Diamonds. A find like this does not come by often, these

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Blue Diamond

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GRS 2.06 ct 18K White Gold Unheated Pigeon Blood Ruby Engagement Ring
GRS 2.06 ct 18K White Gold Unheated Pigeon Blood Ruby Engagement Ring

GRS 2.06 ct 18K White Gold Unheated Pigeon Blood Ruby Engagement Ring

Located in Kaohsiung City, TW

*GRS 18K 2.06 ct Pigeon Blood Ruby&Diamonds Antique Art Deco Engagement Ring* GRS-Certified natural pigeon blood ruby as the center stone weighing 2.06 ct set on the 18K white gold h...

Category

21st Century and Contemporary Taiwanese Contemporary Engagement Rings

Materials

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

John Galliano Pink Bias-Cut Satin Evening Dress with Rhinestone Straps, SS 2002
John Galliano Pink Bias-Cut Satin Evening Dress with Rhinestone Straps, SS 2002

John Galliano Pink Bias-Cut Satin Evening Dress with Rhinestone Straps, SS 2002

By John Galliano

Located in London, GB

John Galliano, Spring-Summer 2002. Bias-cut evening dress in rose-toned crepe-back satin. The fitted bodice features a draped cowl neckline, with rhinestone-embellished straps. The g...

Category

Early 2000s French Evening Dresses and Gowns

S/S 2007 Versace by Donatella Rhinestone Medusa Black Halter Flare Mini Dress
S/S 2007 Versace by Donatella Rhinestone Medusa Black Halter Flare Mini Dress

S/S 2007 Versace by Donatella Rhinestone Medusa Black Halter Flare Mini Dress

By Versace, Donatella Versace

Located in West Hollywood, CA

Presenting a fabulous little black Versace halter-neck dress, designed by Donatella Versace. From the Spring/Summer 2007 collection, this beautiful dress features a plunging neckline...

Category

Early 2000s Italian Mini Dress

Hermes Birkin 25 Rouge Exotic Lizard Bag Palladium Hardware
Hermes Birkin 25 Rouge Exotic Lizard Bag Palladium Hardware

Hermes Birkin 25 Rouge Exotic Lizard Bag Palladium Hardware

By Hermès

Located in Miami, FL

Mightychic offers a limited edition Hermes Birkin 25 bag Rouge Exotic in rare coveted Lizard. A gorgeous strawberry red that is neutral and perfect for year round wear. A glorious po...

Category

21st Century and Contemporary French Top Handle Bags

Art Deco Old Mine Diamond Engagement Platinum Ring
Art Deco Old Mine Diamond Engagement Platinum Ring

Art Deco Old Mine Diamond Engagement Platinum Ring

Located in New York, NY

Art Deco Old Mine Diamond Engagement Ring in Platinum A striking example of Art Deco elegance, this antique engagement ring features a luminous old mine-cut diamond set within an in...

Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

Versace Silk Chiffon Slip Dress with Baroque Print & Lace Trim, SS 2005
Versace Silk Chiffon Slip Dress with Baroque Print & Lace Trim, SS 2005

Versace Silk Chiffon Slip Dress with Baroque Print & Lace Trim, SS 2005

By Versace, Donatella Versace for Gianni Versace

Located in London, GB

This Versace dress from the Spring-Summer 2005 collection is crafted from silk chiffon, featuring a lightweight, airy construction with a slip dress silhouette. The intricate multico...

Category

Early 2000s Italian Evening Dresses and Gowns

7.55 Carat Peach Tourmaline Engagement Ring – Emerald Cut with Bullet Diamonds
7.55 Carat Peach Tourmaline Engagement Ring – Emerald Cut with Bullet Diamonds

7.55 Carat Peach Tourmaline Engagement Ring – Emerald Cut with Bullet Diamonds

By Merkaba

Located in Beverly Hills, CA

7.55 Carat Peach Tourmaline and Bullet Diamonds Platinum Engagement Ring. Luxury Three-Stone Ring – Emerald Cut Tourmaline – Merkaba Jewelry Beverly Hills. A Unique Platinum Engagem...

Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Tourmaline, White Diamond, Emerald, Platinum

Victorian Opal and Diamond Crown Tiara Haircomb Necklace, circa 1880s
Victorian Opal and Diamond Crown Tiara Haircomb Necklace, circa 1880s

Victorian Opal and Diamond Crown Tiara Haircomb Necklace, circa 1880s

Located in Idar-Oberstein, DE

Victorian Opal and Diamond Crown Haircomb Necklace, ca. 1880s A very unusual and stunning Victorian crown, set with fiery opal cabochons and old-mine cut diamonds, from the 1880s. T...

Category

Antique 19th Century Unknown Victorian Choker Necklaces

Materials

Diamond, Opal, Gold, Silver

Hermes Kelly Cut Braise Crocodile Clutch Bag Gold Hardware
Hermes Kelly Cut Braise Crocodile Clutch Bag Gold Hardware

Hermes Kelly Cut Braise Crocodile Clutch Bag Gold Hardware

By Hermès

Located in Miami, FL

Mightychic offers a limited edition Hermes Kelly Cut bag featured in vivid Braise Niloticus Crocodile. This exquisite lipstick red Hermes clutch is perfect day to evening. Lush with...

Category

21st Century and Contemporary French Clutches

Hermès Birkin 30 Himalaya Crocodile Niloticus Palladium Hardware
Hermès Birkin 30 Himalaya Crocodile Niloticus Palladium Hardware

Hermès Birkin 30 Himalaya Crocodile Niloticus Palladium Hardware

By Hermès

Located in Berlin, DE

Hermès Birkin 30 Himalaya in crocodile niloticus leather with palladium hardware. The bag is unworn and comes as full set including the receipt and Cites. Stamp Y (2020)

Category

2010s French Top Handle Bags

Christian Dior Saddle Limited edition Russia Anniversary Saddle by John Galliano
Christian Dior Saddle Limited edition Russia Anniversary Saddle by John Galliano

Christian Dior Saddle Limited edition Russia Anniversary Saddle by John Galliano

By Christian Dior, John Galliano for Christian Dior

Located in Livingston, NJ

To mark his 10th anniversary at Dior, John Galliano designed 12 limited-edition Saddle Bags, each inspired by a different country’s culture. With only 100 of each style produced, the...

Category

Early 2000s Shoulder Bags

Bob Mackie 1980s Size 6 Light Pink + Grey Silk Chiffon Strapless Grecian Gown
Bob Mackie 1980s Size 6 Light Pink + Grey Silk Chiffon Strapless Grecian Gown

Bob Mackie 1980s Size 6 Light Pink + Grey Silk Chiffon Strapless Grecian Gown

By Bob Mackie

Located in San Diego, CA

Phenomenal vintage late 80s Bob Mackie Couture light pink and gray silk chiffon, lace and rhinestone encrusted strapless Grecian gown ! Features grey lace and rhinestones on the bodi...

Category

1980s American Evening Gowns

Emilio Jewelry Gia Certified Fancy Blue Diamond Ring
Emilio Jewelry Gia Certified Fancy Blue Diamond Ring

Emilio Jewelry Gia Certified Fancy Blue Diamond Ring

By Emilio!

Located in New York, NY

From Emilio Jewelry, a well known and respected wholesaler/dealer located on New York’s iconic Fifth Avenue, Featuring a very special center diamond Gia Certified as Natural 4.00 Ca...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Diamond

Alexander McQueen Gown The Cosmic Rain Dress  Embroidery Corset
Alexander McQueen Gown The Cosmic Rain Dress  Embroidery Corset

Alexander McQueen Gown The Cosmic Rain Dress Embroidery Corset

By Alexander McQueen

Located in Berlin, BE

Breathtaking Alexander Mcqueen Corset Gown. Cosmic rain, comet and astral crystal embroideries are hand-sewn to this stunnig evening gown. Powder blue Paris net bustier dress featuri...

Category

2010s Italian Evening Dresses and Gowns

Pierre Balmain Couture Ballgown  1955 Iconic Gown Dress
Pierre Balmain Couture Ballgown  1955 Iconic Gown Dress

Pierre Balmain Couture Ballgown 1955 Iconic Gown Dress

By Pierre Balmain

Located in Berlin, BE

'La Robe Broderie À Ramages' PIERRE BALMAIN PARIS Made In France, ca.1955 Majestic evening gown in silk and cream satin with the most astonishing embroiderery by PIERRE BALMAIN Haut...

Category

1950s French Evening Dresses and Gowns

Iconic Spectacular Thierry Mugler SS 1997 Gown 'Kiss of the Spiderwoman'
Iconic Spectacular Thierry Mugler SS 1997 Gown 'Kiss of the Spiderwoman'

Iconic Spectacular Thierry Mugler SS 1997 Gown 'Kiss of the Spiderwoman'

By Thierry Mugler

Located in Berlin, BE

Behold the breathtaking embodiment of high drama and couture mastery: The stunning extremely rare Thierry Mugler "Kiss of the Spiderwoman" evening gown from the legendary Spring/Summ...

Category

1990s French Evening Dresses and Gowns

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Fancy Greenish Blue Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of fancy greenish blue diamonds. Frequently made of Gold, Platinum and 18k Gold, these items were constructed with great care. Our collection of these items for sale includes 1 vintage editions and 9 modern creations to choose from as well. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 20th Century to those produced as recently as the 21st Century. Modern and Art Deco are consistently popular styles when it comes to fancy greenish blue diamonds. Many examples in our inventory of these items are appealing no matter their origins, but Alexander of Beverly Hills, Emilio! and Tamir produced popular versions that are worth a look. Browse our collection of 9 Diamond versions today to add the perfect touch to your look. There are many cushion cut and radiant cut fancy greenish blue diamonds for sale. If you’re browsing the variety of fancy greenish blue diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are Fancy Greenish Blue Diamonds?

On average, fancy greenish blue diamonds at 1stDibs sell for $150,000, while they’re typically $45,000 on the low end and $458,870 for the highest priced versions of this item.

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.