Skip to main content

Diamond Geode

to
5
147
85
216
88
23
18
17
4
4
1
77
63
42
10
7
Sort By
Various Sized, Diamond Ring Gradient Quartz Pendant Light by Christopher Boots
By Christopher Boots
Located in Geneve, CH
magical residue, following the inward and outward flow of circular energy. Like an exploded geode, DIAMOND
Category

2010s Australian Post-Modern Chandeliers and Pendants

Materials

Quartz

Karolin Bracelet Agate Geode White Diamond Rose Gold Bangle
By Karolin Studio
Located in Antwerp, BE
This amazing piece has 0.31 ct of gvs diamonds, carefully set around 1 agate geode. The bracelet is
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Karolin Bracelet Agate Geode White Diamond Rose Gold Bangle
By Karolin Studio
Located in Antwerp, BE
This amazing piece has 0.53 ct of gvs diamonds, carefully set around the 2 agate geodes. The
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Karolin White Gold White Diamond Agate Geode Tennis Bracelet
By Karolin Studio
Located in Antwerp, BE
. This 18K white gold diamond Tennis Bracelet 'Robin' is handset with 1.3 ct gvs diamonds. Wear yours
Category

2010s Belgian Contemporary Tennis Bracelets

Materials

Agate, White Diamond, 18k Gold

Karolin Agate Geode Stud Earrings White Diamonds Pavé Hook
By Karolin Studio
Located in Antwerp, BE
color agate geode earrings 'Audrey' look like a glinstering waterfall. They have a drop of 11 cm and
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Cocktail Karolin White Diamond Pave Agate Geode Rose Gold Ring
By Karolin Studio
Located in Antwerp, BE
This Cocktail ring 'Rocky' is casted in 18 k rose gold and set with a light blue crystallized geode
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Bracelet Agate Geode White Diamond Rose Gold Bangle Bracelet
By Karolin Studio
Located in Antwerp, BE
This amazing piece has 0.27 ct of gvs diamonds, carefully set around 1 agate geode. The bracelet is
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Karolin Bracelet Agate Geode White Diamond Rose Gold Bangle Bracelet
By Karolin Studio
Located in Antwerp, BE
This amazing piece has 0.28 ct of gvs diamonds, carefully set around 1 agate geode. The bracelet is
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White Diamond Pavé Hook Agate Geode Earrings
By Karolin Studio
Located in Antwerp, BE
Beauty's! These light pink/lila agate geode earrings are handcrafted from 18k rose gold and
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White Diamond Pavé Agate Geode Drop Earrings Hook
By Karolin Studio
Located in Antwerp, BE
Karolin's Alison earrings are made of 18 ct rose gold with sparkling diamonds on the hook. The
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White Diamond Pavé Agate Geode Drop Earrings Hook
By Karolin Studio
Located in Antwerp, BE
Karolin's Alison earrings are made of 18 ct rose gold with sparkling diamonds on the hook. The
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White Diamond Agate Geode Drop Pavé Hook Earrings
By Karolin Studio
Located in Antwerp, BE
Summer and Winter! The 0.32 ct diamonds make these earrings even more precious.
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Cocktail Karolin White Diamond Pave Agate Odessa Snake Geode Rose Gold Ring
By Karolin Studio
Located in Antwerp, BE
0.26 ct of diamonds on the tale. A one of a kind piece for a one of a kind person. Size 54 Euro
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Lilly Geode 18 Karat Gold Earrings
By Nina Wynn
Located in Denver, CO
Designed with bezel-set geode stones, the diamond-accented Lilly Gold Charms embrace the shape of a
Category

21st Century and Contemporary Vietnamese Contemporary Drop Earrings

Materials

18k Gold

Micro Geode Pendant in 14 Karat Yellow Gold
By Michael von Krenner
Located in Austin, TX
gold is free-form around the geode with Sapphires & Diamonds surrounding the outside of micro geode. It
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Agate, White Diamond, Sapphire, 14k Gold, Yellow Gold

Geode Drop Earrings Set in 14 Karat Yellow Gold with .75 Carat Total of Diamonds
By Michael von Krenner
Located in Austin, TX
Geode Drop Earrings Set in 14K Yellow Gold with .75 Carats Total of Diamonds. These earrings are
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Diamond, Agate, 14k Gold

Around the World Geode Silver Hoop Earrings
By Nina Wynn
Located in Denver, CO
stones: Diamond Genuine Geode: A unique stone found at least 100 feet below the earth's surface, gem
Category

21st Century and Contemporary Vietnamese Contemporary Hoop Earrings

Geode Charms and Intricate 18 Karat Gold Reversible Huggies Earrings
By Nina Wynn
Located in Denver, CO
Champagne Diamonds for day, emeralds for a night out: We designed a version of popular petite hoop
Category

21st Century and Contemporary Vietnamese Contemporary Drop Earrings

Materials

Emerald, Diamond, 18k Gold

Middle of century murano glass large brilliant faceted geode
By Mandruzzato
Located in Grantham, GB
Beautiful vitange murano glass large sommerso diamond faceted geode, red, yellow and clear with
Category

Vintage 1960s Italian Art Deco Decorative Baskets

Materials

Murano Glass

Leda Jewel Co Herkimer Diamond Specimen Earrings With Stalactite Drops
By Leda Jewel Co
Located in Montreal, Quebec
Herkimer diamond specimen earrings with amethyst edged stalactite slices. Sterling silver wirework
Category

2010s Artisan Dangle Earrings

Materials

Amethyst, Diamond, Geode, Sterling Silver

Karolin Rose Gold Pink Agate Geode White Pave Diamond Cocktail Ring
By Karolin Studio
Located in Antwerp, BE
18 k rose gold and 0,20 ct shimmering diamonds. Great for summer and winter styles.
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Agate Geode Green or White Gold Cocktail Ring Pavé Diamonds
By Karolin Studio
Located in Antwerp, BE
This ring is a real beauty.... Made of 18 k rose gold and set with 0,35 shimmering pavé diamonds
Category

2010s Belgian Contemporary Engagement Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White/Blue Agate Geode White Pave Diamond Cocktail Ring
By Karolin Studio
Located in Antwerp, BE
This is an amzing ring! Set with 18 k rose gold and 0,47 ct shimmering diamonds. Great for summer
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold Blue/White Agate Geode White Pave Diamond Cocktail Ring
By Karolin Studio
Located in Antwerp, BE
shimmering diamonds. Great for summer and winter styles.
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold Blue/Red Agate Geode White Pave Diamond Cocktail Ring
By Karolin Studio
Located in Antwerp, BE
, one of a kind design. Cast from 18k rose gold, the ring features 0,36 carats of glistening diamonds
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Agate, White Diamond, 18k Gold

Karolin Rose Gold White Diamond Agate Geode Bangle
By Karolin Studio
Located in Antwerp, BE
, surrounded by 0.26 ct sparkling diamonds. The agate geodes are blue and pink. The colors change with sunlight
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Karolin Blue Agate Geode Stud Pave Diamond Rose Gold Earrings
By Karolin Studio
Located in Antwerp, BE
shimmering diamonds. Perfect for a wedding!
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Green Agate Geode Stud Pave Diamond Rose Gold Earrings
By Karolin Studio
Located in Antwerp, BE
, surrounded by 0.43 ct of shimmering diamonds. Wear them casual or with a lbd.
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Blue/Green Agate Geode Stud Pave Diamond Rose Gold Earrings
By Karolin Studio
Located in Antwerp, BE
Karolin's Jewellery is totally unique. So are these hand-picked agate geodes in blue/green. The 18K
Category

2010s Belgian Contemporary Drop Earrings

Materials

Agate, White Diamond, 18k Gold

Karolin Bracelet Agate Geode in 18 Karat Rose Gold
By Karolin Studio
Located in Antwerp, BE
piece in 18k rose gold and a variety of agate geodes. A great piece to buy or to offer as a present.
Category

2010s Belgian Contemporary Bangles

Materials

Agate, White Diamond, 18k Gold

Pink Sapphire and Diamond Geode Style Earrings Set in 18 Karat Gold
Located in Beverly Hills, CA
Rare and unique pair of pink sapphire and white diamond geode shaped earrings. Over 1.40 carats of
Category

21st Century and Contemporary Unknown Modern Drop Earrings

Materials

Diamond, White Diamond, Sapphire, Pink Sapphire, Gold, 18k Gold

Chanel Comète Géode 18k White Gold Diamond Ring
By Chanel
Located in Southampton, PA
This pretty Chanel Comète Géode 18K White Gold Diamond Ring is made with 18K white gold forming a
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Geode, White Gold

Geode Diamond Tanzanite Earring
Located in New York, NY
Beautiful and always one of a kind grey geode earring with diamond motif on top and pear shape
Category

21st Century and Contemporary Indian Artisan Drop Earrings

Materials

Diamond, Tanzanite, 18k Gold, Yellow Gold

Geode Diamond Gold Drop Earrings
Located in Carmel-by-the-Sea, CA
Lovely sets of geodes framed in 18k rose gold and a subtle border of diamonds create the ultimate
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, Rose Gold

1960s Geode Emerald Diamond Gold Brooch
Located in New York, NY
and diamonds that surround a deep grey geode of quartz. It's great looking whether worn up and down
Category

Vintage 1960s Brooches

Materials

Diamond, Emerald, Quartz, 18k Gold

14K Gold, Carved Jasper Bird on an Amethyst Rock Geode
Located in Long Island City, NY
14K gold, carved jasper bird on an amethyst rock geode Hand-carved jasper bird with diamond eyes
Category

20th Century Figurines and Sculptures

Materials

Amethyst, Diamond, Geode, Jasper, 14k Gold

Italian Murano Diamond Faceted Geode Glass Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
This stunning large Italian Murano handblown diamond faceted flat cut polished glass sommerso geode
Category

Vintage 1970s Italian Modern Glass

Materials

Blown Glass

Italian Murano Diamond Faceted Geode Glass Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
up this Italian murano geode bowl with a flat cut polished top. it has chiseled diamond faceted sides
Category

Vintage 1970s Italian Modern Glass

Chanel White Gold Diamond Comete Geode Ring J0387
By Chanel
Located in Mayfair, London, London
A stunning 18k white gold diamond ring by Chanel from the Comete collection. The ring comprises of
Category

21st Century and Contemporary French Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Chanel White Gold Diamond Comete Geode Ring J0387
By Chanel
Located in Mayfair, London, London
A stunning 18k white gold diamond ring by Chanel from the Comete collection. The ring comprises of
Category

21st Century and Contemporary French Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Dark Grey Geode Earring with Diamonds and Opal Around
Located in New York, NY
Dark Grey Geode Earring with Diamonds and opal around is simply divine, we wish we could them make
Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

Diamond, Opal, Sapphire, 18k Gold, White Gold

Kimberly McDonald Geode Diamond Bracelet Purple Macrame 18 Karat Gold
By Kimberly McDonald
Located in Torrance, CA
Overview: One-of-a-kind Kimberly McDonald geode & diamond bracelet in an 18 karat blackened white
Category

2010s Unknown Modern Modern Bracelets

Materials

Diamond, 18k Gold

Stylish Diamond and Geode Bangle in 18 Karat Yellow Gold
Located in New York, NY
This stylish Brown Geode and Diamond Bangle in 18K Yellow Gold will be a hit to stack with your
Category

21st Century and Contemporary Indian Modern Bangles

Materials

Diamond, 18k Gold, Yellow Gold

Italian Murano Diamond Faceted Sommerso Geode Glass Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
This beautiful Italian Murano diamond faceted glass geode bowl has a brilliant color of violet in
Category

Vintage 1970s Italian Mid-Century Modern Glass

Materials

Blown Glass

Diamond Faceted Italian Murano Sommerso Geode Glass Bowl
Located in North Miami, FL
The original sticker remains on this amazing and gorgeous Italian Murano geode bowl. The Sommerso
Category

Vintage 1960s Italian Glass

Materials

Murano Glass

Vintage Italian Murano Diamond Faceted Geode Sommerso Glass Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
This vintage Italian Murano diamond faceted glass geode Sommerso bowl is a combination of
Category

Vintage 1970s Italian Modern Glass

Materials

Blown Glass

Rare Italian Murano Diamond Faceted Geode Glass Bowl/Caviar Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
The brilliant colors of blue and violet of this spectacular and large diamond faceted flat cut
Category

Vintage 1970s Italian Modern Glass

Materials

Glass

Geode Flat Cut Italian, Murano Glass Diamond Faceted Sommerso Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
This substantial and wonderful heavy Murano glass geode bowl has the diamond honeycomb pattern. The
Category

Vintage 1960s Italian Modern Serving Bowls

Materials

Murano Glass

Geode Diamond Necklace
By Meghna Jewels
Located in Hoffman Estate, IL
MM Total Weight-167.745 Silver Weight(Gms)-95.941 Diamond Wt(Cts)-7.25 Geode Wt(Cts)-351.77
Category

21st Century and Contemporary Unknown Modern Drop Necklaces

Materials

Agate, Diamond, Gold, 18k Gold, Sterling Silver

Sliced Multicolor Geode Bangle with Diamonds Made in 18k Gold Silver
By Artisan NYC
Located in New York, NY
18k:1.47g, Diamond:2.63ct, Silver:23.73gm, Geode:27.58ct Size: 68X11 MM"
Category

21st Century and Contemporary Indian Artisan Modern Bracelets

Materials

Diamond, Geode, 18k Gold, Silver

White Geode Studs with Diamonds and Rubies Set in 18k Gold
By Artisan NYC
Located in New York, NY
Lovely looking white geode studs with diamonds and rubies set in 18K gold is simple and very
Category

21st Century and Contemporary Indian Stud Earrings

Materials

Diamond, Ruby, Geode, 18k Gold, Yellow Gold

One of a Kind White Geode with Diamonds and Sapphire Set in Gold and Silver
By Artisan NYC
Located in New York, NY
Designer One of a kind white geode with Diamonds and Sapphire set in Gold and Silver is perfect to
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Sapphire, Geode, 18k Gold, Silver, Gold

Chanel White Gold Comète Géode Diamond Necklace J0869
By Chanel
Located in Mayfair, London, London
An 18k white gold diamond Chanel pendant from the Comète Géode collection. The pendant comprises of
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Italian Murano Diamond Faceted Sommerso Glass Geode Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
This lovely Italian Murano triple Sommerso diamond faceted flat cut polished geode glass bowl
Category

Vintage 1970s Italian Modern Glass

Materials

Glass

Geode Pendant Necklace Surrounded with Diamonds in Oxidized Sterling Silver
Located in Berkeley, CA
This exquisite geode exudes reds, greens, greys and has a crystaline center. Set in a bezel with a
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, Sterling Silver

Italian Murano Sommerso Diamond Faceted Geode Glass Bowl
By Alessandro Mandruzzato
Located in North Miami, FL
this beautiful Italian murano diamond faceted flat cut polished geode glass bowl. The special blue
Category

Vintage 1970s Italian Modern Glass

Materials

Blown Glass

Kimberly McDonald Large Impressive Gold Diamond and Geode Cuff Bracelet
By Kimberly McDonald
Located in Chicago, IL
throughout with fine Geodes of varying colors and further set with approximately 3 Carats of Oval and Pear
Category

2010s American Cuff Bracelets

Materials

Diamond, 18k Gold

  • 1
Get Updated with New Arrivals
Save "Diamond Geode", and we’ll notify you when there are new listings in this category.

Diamond Geode For Sale on 1stDibs

On 1stDibs, you can find the most appropriate diamond geode for your needs in our varied inventory. Frequently made of Gold, 18k Gold and Silver, this item was constructed with great care. Find an antique version now, or shop for 4 vintage or 59 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a diamond geode may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Finding an appealing diamond geode — no matter the origin — is easy, but Meghna Jewels, Chanel and Kimberly McDonald each produced a popular version that is worth a look. A diamond geode of any era or style can lend versatility to your look, but a version featuring Diamond, from our inventory of 61, is particularly popular. Today, if you’re looking for a mixed cut version of this piece and are unable to find the perfect match, our selection also includes round cut and single cut alternatives. When shopping for a diamond geode, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Diamond Geode?

Prices for a diamond geode can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $160 and can go as high as $23,500, while this accessory, on average, fetches $4,800.

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.