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Rare Diamond

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NWT $25, 500 Rare 18KT South Sea Large Pearl Rose Cut Diamond Earrings
Located in New York, NY
Rare Fancy Glittering Rose Cut Diamonds!! These Extremely Rare Gorgeous Pearls are approx 14MM - 15MM
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Pearl, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Rare Georgian Diamond Crowned Heart Ring Antique Engagement Ring c.1740 Rose Cut
Located in London, GB
This rare and enchanting early Georgian 'Crowned Heart' ring dates back to circa 1740, a stunning
Category

Antique Mid-18th Century Rococo Engagement Rings

Materials

Diamond, 18k Gold, Silver

Pigeonblood Ruby Diamond Pendant with Chain Red Rare from Mosambique 0.64 Ct
Located in Viena, Viena
certificate and diamond navette of 0.80 ct TCR / VVS, IGI report, 8,86x4,8x3.04 mm, set in a modern style in a
Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

NWT $18, 500 18KT White Gold Rare Large 6CT Faceted Gorgeous Black Diamond Ring
Located in New York, NY
Black Diamond Ring. This Magnificent Ring is comprised of Rare Fine Large Faceted Oval Black Diamond
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Black Diamond, Gold, 18k Gold, White Gold

Platinum 1.27 Carat GIA Certified Rare Natural Half Moon Diamond I VVS1 Pendant
Located in Los Angeles, CA
Magnificent Platinum 1.27 Carat GIA Certified Rare Natural Half Moon Diamond I VVS1 Pendant The
Category

2010s North American Modern Pendant Necklaces

Materials

Diamond, Platinum

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

18KT Gold Rare Gorgeous Black Opal, Rose Cut Diamond and Blue Sapphire Earrings
Located in New York, NY
Australian Black Opal and Diamond Gorgeous Drop Earrings. Earrings feature Magnificent Rare Color Changing
Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, Blue Sapphire, Black Opal, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

5.45tcw Rare Oval Cabochon Cut Emerald Diamond Accent Vintage Styled Ring 14K
Located in Jupiter, FL
A vintage-styled, cabochon emerald and diamond accent ring. This treasure features a remarkable
Category

2010s American Art Deco Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

9, 939 Rare 18KT Gold Large Fancy Opal Rainbow Sapphire Diamond Ring
Located in New York, NY
The Following Items we are offering is this Rare Important Radiant 18KT Gold LARGE Glittering and
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Blue Sapphire, Pink Sapphire, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Victorian Rose Cut Diamond Engagement Ring ~2ct in 14 Karat Yellow Gold RARE
Located in Fairfield, CT
Victorian Rose Cut Diamond Engagement Ring ~2ct in 14 Karat Yellow Gold RARE This exquisite and
Category

Antique 1840s Victorian Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

NWT $6, 500 Rare 18Kt Gold Fancy Blue Sapphire Diamond Flower Pendant Necklace
Located in New York, NY
The Following Item we are offering is a Rare Important Radiant 18KT Gold Gorgeous Large Shimmering
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Blue Sapphire, Gold, 18k Gold

Rare Natural Blue and Red Spinel Bypass Ring Diamond Setting 4 Carats 18K Gold
Located in Punta Gorda, FL
Spinels = 2.30 Carats Cut: Cushion Diamonds = 1.70 Carats Cut: Round, Color: F-G, Clarity: VS Metal: 18K
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Spinel, Gold, 18k Gold, Yellow Gold

Impressive Rare Yellow Pink Orange Sapphire Tsavorite Diamond White Gold Ring
By Natkina
Located in Genève, GE
Ring White Gold 14 K (Marching Bracelet and Pendant Available) Tsavorite 1-0,08ct Diamond 1-RND
Category

21st Century and Contemporary Swiss Modern Fashion Rings

Materials

Diamond, Sapphire, Blue Sapphire, Tsavorite, Pink Sapphire, Gold, 14k Go...

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $14, 000 Rare Gorgeous 18KT Gold Fancy Double Emerald Diamond Long Necklace
Located in New York, NY
A Rare 18KT White Gold Emerald Diamond Necklace. Necklace is comprised of Finely Set Glittering
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Emerald, Gold, White Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $24, 000 Rare 18KT South Sea Large Pearl Rose Cut Diamond Earrings
Located in New York, NY
comprised of approx 4 Carats of Rare Fancy Glittering Rose Cut Diamonds and Round Diamonds!! These Extremely
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Pearl, Gold, 18k Gold

NWT 9, 569 Rare 18KT Gold Exquisite Fancy Pearl Baguette Diamond Dangle Earrings
Located in New York, NY
and Round Diamonds at top!! These Rare Magnificent Pearls are Creamy and Highly Lustered and are
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Pearl, Gold, 18k Gold

NWT $19, 600 Rare 18KT South Sea Large Pearl Rose Cut Diamond Earrings
Located in New York, NY
Rose Cut and Glittering Round Diamonds!! These Extremely Rare Gorgeous Pearls are approx 12MM - 13MM
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Pearl, Gold, 18k Gold

NWT $19, 800 Rare 18KT Gold Gorgeous Fancy Large Flower Emerald Diamond Ring
Located in New York, NY
with Beautiful Glittering Fancy Diamonds. T.C.W APPROX 5CTS!!! This Magnificent Ring is a Rare Sample
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $175, 000 Rare Fancy 18KT Gold 40CT Gorgeous Burmese Ruby Diamond Bracelet
Located in New York, NY
Sparkling Magnificent Fancy Rare Burmese Ruby and Diamond Bracelet. Bracelet contains approx 40CTS of
Category

21st Century and Contemporary Retro Bracelets

Materials

Diamond, Ruby, Gold, 18k Gold

Extremely Rare Two Side Black Opal Seagull Wing Necklace Diamond 18K Gold
Located in Suwanee, GA
Extremely Rare Two Side Australian Black Opal Seagull Wing Necklace & Diamond 18K Yellow Gold
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Black Opal, Opal, Diamond, Yellow Gold, Gold, 18k Gold

NWT $258, 100 18KT Gold Rare Fancy Ceylon Blue Sapphire Diamond Dangle Earrings
Located in New York, NY
The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and
Category

21st Century and Contemporary Drop Earrings

Materials

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

Rare GIA Red Spinel Diamond IMPERIAL RUSSIAN Faberge 14K Rose Gold Drop Earrings
By Fabergé
Located in New York, NY
Rare Antique GIA 2ct Red Spinel & Diamond IMPERIAL RUSSIAN Karl Faberge Tsarism 14K Rose Gold Drop
Category

Antique 1890s European Russian Empire Drop Earrings

Materials

Diamond, Spinel, 14k Gold, Rose Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $250, 000 Rare Fancy 18KT Gold 70CT Gorgeous Burmese Ruby Diamond Necklace
Located in New York, NY
The Following Items we are offering is a Rare Important Radiant 18KT White Gold Fancy Gorgeous
Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold

NWT $275, 000 Rare Fancy 18KT Gold 60CT Gorgeous Important Ruby Diamond Necklace
Located in New York, NY
Sparkling Magnificent Fancy Rare Important Ruby and Diamond Necklace. Necklace contains approx 60CTS of
Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold

Platinum Diamond Bracelet Vintage Pery Watch GIA Deco VVS Rare Fine 10.04 Carats
Located in Sylvania, GA
Old South Jewels proudly presents...ANTIQUE PLATINUM 10.04 CARATS DIAMOND ART DECO GIA CERTIFIED
Category

Early 20th Century Art Deco Tennis Bracelets

Materials

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

NWT $36, 769 Rare Gorgeous 18KT Gold Fancy Tanzanite and Diamond Pendant Necklace
Located in New York, NY
Tanzanite and Glittering Diamonds!!! This Gorgeous Necklace is a Rare Sample Piece from a Private Top
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Tanzanite, Gold, 18k Gold

NWT $36, 839 Rare Gorgeous 18KT Gold Fancy Cabochon Emerald and Diamond Necklace
Located in New York, NY
Green Emerald and Glittering Diamonds!!! This Gorgeous Necklace is a Rare Sample Piece from a Private
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Emerald, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Victorian Rose Cut Diamond Enamel Dangle Day/Night Earrings 18 Karat Gold Rare
Located in New York, NY
This is very rare pair of early Rose Cut Diamond Antique Georgian - Victorian Dangle Drop Day Night
Category

Antique 19th Century Spanish Victorian Drop Earrings

Materials

Diamond, Gold, Yellow Gold, 18k Gold, Enamel

Rare Magnificent NWT $125, 000 18KT Gold Fancy Ruby Drop Diamond Dangle Earrings
Located in New York, NY
The Following Items we are offering is a Rare Important Radiant Pair of 18KT White Gold Winston
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Ruby, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Nwt 9.249 Rare 18kt Fancy Large Glittering 10ct Opal Pink Sapphire Diamond Ring
Located in New York, NY
The Following Item we are offering is a Rare Important Radiant 18KT Gold Large Fancy Fiery White
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $70, 000 Rare Important 18KT Gold 11CT Gorgeous Burmese Ruby Diamond Bracelet
Located in New York, NY
Sparkling Magnificent Fancy Rare Burmese Ruby and Diamond Tennis Bracelet. Bracelet contains over 11CTS of
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, Ruby, Gold, 18k Gold

NWT $250, 000 Rare Fancy 18KT Gold Gorgeous Large Burmese Ruby Diamond Bracelet
Located in New York, NY
Sparkling Magnificent Fancy Rare Large Burmese Ruby and Diamond Bracelet. Bracelet contains approx 30CTS of
Category

21st Century and Contemporary Retro Bracelets

Materials

Diamond, Ruby, Gold, 18k Gold

3, 500 Rare 18KT Gold Large Important Estate 4CT Blue Sapphire Diamond Ring
Located in New York, NY
The Following Items we are offering is this Rare Important Radiant 18KT Gold LARGE Estate Blue
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, Gold, 18k Gold

Rare Natural Blue and Red Spinel Bypass Ring Diamond Setting 4 Carats 18K Gold
Located in Punta Gorda, FL
Spinels = 2.30 Carats Cut: Cushion Diamonds = 1.70 Carats Cut: Round, Color: F-G, Clarity: VS Metal: 18K
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Spinel, Gold, 18k Gold, Yellow Gold

GIA 12.62 Carat Natural Rubellite Pink Tourmaline Diamonds Pendant 18 Karat Rare
Located in New York, NY
10.82ct. Natural Rubellite & 1.80ct. Diamonds pendant. 3D Swirl design & Rubellite mounted within
Category

2010s American Pendant Necklaces

Materials

Diamond, Rubelite, 18k Gold, White Gold, Yellow Gold

NWT $48, 000 Rare Important 18KT Gold 21CT Burmese Ruby Diamond Dangle Earrings
Located in New York, NY
Sparkling Magnificent Fancy Rare Burmese Ruby and Diamond Necklace. Necklace contains almost 90CTS of
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, Ruby, Gold, 18k Gold

Nwt $39, 153 Rare 18kt White Gold Fancy Large 4ct Emerald Cut Diamond Earrings
Located in New York, NY
The Following Item we are offering are these Beautiful Important Rare 18KT White Gold Brilliant
Category

21st Century and Contemporary Stud Earrings

Materials

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

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $6, 449 18KT Gold Rare Large Triple Diamond Tier Engagement / Cocktail Ring
Located in New York, NY
Diamond Ring. This Magnificent Ring is comprised of Rare Fine Fancy Trillion Baguette Cut and Round
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold

Rare Vintage Van Cleef Arpels 18k Yellow Gold Diamond Heart Ring And Pendant
By Van Cleef Arpels
Located in Birmingham, GB
Very Rare Vintage Van Cleef & Arpels 18k Yellow Gold Diamond Heart Ring AND Pendant. A unique and
Category

20th Century French Fashion Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

NWT $62, 436 18KT Gold Rare Fancy Large Gorgeous Paraiba and Diamond Earrings
Located in New York, NY
Gorgeous Fancy Large, Paraiba and Diamond Dangle Earrings. Earrings consists of Rare Fine Magnificent
Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, Paraiba, Gold, 18k Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Punta Gorda, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold

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Rare Diamond For Sale on 1stDibs

Surely you’ll find the exact rare diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. Our collection of these items for sale includes 430 vintage editions and 261 modern creations to choose from as well. If you’re looking for a rare diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced 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. There have been many well-made iterations of the classic rare diamond over the years, but those made by Natkina, Rolex and Cartier are often thought to be among the most beautiful. A round cut version of this piece has appeal, but there are also oval cut and cushion cut versions for sale. Finding a rare diamond for sale for women should be easy, but there are 193 pieces available to browse for unisex as well as men, too.

How Much is a Rare Diamond?

On average, a rare diamond at 1stDibs sells for $14,183, while they’re typically $208 on the low end and $995,000 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.  

Questions About Rare Diamond
  • 1stDibs ExpertApril 5, 2022
    A nine-carat diamond is considered rare and holds a premium price. Because of their rarity and size, nine-carat diamonds are a coveted choice for engagement rings. One of the most famous nine-carat diamond rings belongs to actress Kate Hudson, who has a nine-carat emerald cut diamond complemented with tapered baguettes on a platinum band. Shop a selection of diamond jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Argyle pink diamonds are generally thought of as very rare. This is because pink diamonds account for less than 1 percent of the diamonds mined from the area in Western Australia. You'll find a collection of Argyle pink diamond gemstone jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 13, 2023
    Yes, a two-carat diamond is generally rarer than a smaller diamond, especially high-quality two-carat diamonds. When larger diamonds are found in nature, they usually have flaws. And prices per carat don’t increase as weight increases. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. Shop an assortment of diamond jewelry from some of the world’s top jewelers on 1stDibs.
  • 1stDibs ExpertJune 15, 2023
    Vivid yellow diamonds are extremely rare. In fact, only one out of every 10,000 carats of diamonds mined is yellow. However, yellow is the most common type of colored diamond, accounting for 60% of all colored diamonds. On 1stDibs, find an assortment of yellow diamond jewelry.