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Platinum Opal and Diamond Ring
Located in Dallas, TX
Platinum Ring Featuring 1 Cabochon Cut Opal 16.50 Carat; 48 Round Brilliant Diamonds 3.20 Carat
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Natural Tanzanite Diamond Ring in 14 Karat Yellow Gold
Located in Manhattan Beach, CA
Total Natural Diamond Weight is 1.00 Carat Quantity: 48 Color: F-G, Clarity: VS2-SI1 Face Measures
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

18 Karat Yellow Gold and White Gold Tanzanite and Diamond Ring
Located in Dallas, TX
Stunning 18 Karat Yellow Gold, 18 Karat White Gold Ring featuring 1 Round Tanzanite 3.50 Carat, 48
Category

Late 20th Century More Rings

Materials

Diamond, Tanzanite, 18k Gold

Graff Prince Butterfly with Emeralds and Write Round Diamonds Ring
By Graff
Located in New York, NY
. 0.29 Carats. Clarity: VS+ 139 Round Diamonds weighing approx. 1.75 Carats. Clarity: VS+ 48 Baguette
Category

21st Century and Contemporary British Fashion Rings

Materials

Diamond, Emerald, 18k Gold

Amethyst and Moonstone Necklace
By Shreve, Crump Low
Located in Chestnut Hill, MA
weight of 281.03 carat and 48 round cabochon moonstones having a total weight of 66.62 carats. 131.7
Category

21st Century and Contemporary Beaded Necklaces

Materials

Amethyst, Moonstone

12.00ct Beryl and Diamond Ring
Located in Carmel, CA
A beautiful 18k yellow gold ring with a 12.00 carat yellow beryl center gemstone and .48 total
Category

Late 20th Century Contemporary Cocktail Rings

Materials

Beryl, Diamond, 18k Gold, Yellow Gold

Caspita Spinels, Sapphires, Tsavorites, Amethysts, Diamonds Bracelet
Located in Geneva, CH
blue sapphires 2.1 carats, 48 amethysts 1.5 carats and 224 diamonds DEF / VVS 2.6 carats. Retailed
Category

21st Century and Contemporary Swiss Cuff Bracelets

Materials

Amethyst, Diamond, Sapphire, Spinel, Tsavorite, 18k Gold

Chopard Happy Diamonds Yellow Gold Pave Diamond Heart Ring 82/8937
By Chopard
Located in New York, NY
Gold (9.90gr) 44 Diamonds on the Ring (.70 Carats) 1 Floating Diamond (.05 Carats) Size 4.5 (48
Category

Early 2000s Swiss Cocktail Rings

Materials

18k Gold, Yellow Gold

GIA Certified Natural Canary Yellow Oval Diamond Drop Earrings
By Shreve, Crump Low
Located in Chestnut Hill, MA
48 FC @ 0.32 carat yellow gold. GIA #2115225373, GIA #2105490176
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

Hammerman Brothers Citrine and Diamond Flower Shaker Ring
By Hammerman Brothers
Located in New York, NY
playful sophistication. Composition: 15 citrines totaling 2.74 carats and 48 diamonds totaling 0.28
Category

2010s American Cocktail Rings

Materials

Diamond, Citrine, 18k Gold

1980s Italian Ruby Sapphire Emerald Diamond Gold Flower Basket Brooch
Located in Roma, IT
emeralds with a total weight of circa 18-20.00 carats and diamonds circa 7.00 carats. Total weight 48 g
Category

Vintage 1980s Italian Brooches

Materials

Diamond, Emerald, Ruby, Sapphire, Yellow Gold

Men s 14K White Gold Diamonds Rotating Spinner Ring for Him by Shlomit Rogel
By Shlomit Rogel
Located in Ramatgan, IL
color: F Number of diamonds: 48 Diamond weight (carat): 0.5ct Customization: Can be made to order
Category

21st Century and Contemporary Israeli Modern Fashion Rings

Materials

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

18 Karat Pearl Necklace with Diamond and Inlaid Stone Center
By Asch Grossbardt
Located in Pikesville, MD
onyx inlay. 15 round diamonds have a total weight of .30 carats. 48 lustrous white cultured pearls
Category

1990s American Modern Beaded Necklaces

Materials

White Diamond, Onyx, Cultured Pearl, 18k Gold, Yellow Gold

Full Circle Ring
Located in Palm Beach, FL
. MATERIALS 18-Karat Yellow Gold White Diamonds Mother of Pearl .48 Total Carat Weight DIMENSIONS Size
Category

2010s Italian Dome Rings

Materials

White Diamond, Yellow Gold

Full Circle Ring
Located in Palm Beach, FL
. MATERIALS 18-Karat Yellow Gold White Diamonds Mother of Pearl .48 Total Carat Weight DIMENSIONS Size
Category

2010s Italian Fashion Rings

18 Karat White Gold Art Deco Style Dagger Spike Diamond Layering Necklace
By Doves by Doron Paloma
Located in Great Neck, NY
Information: - 48 diamonds totaling 0.58 carats. G-H color, SI clarity. Overall Dimension: 0.71 x 1.46 inches
Category

21st Century and Contemporary American Art Deco Drop Necklaces

Materials

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

Marie Mas Reversible Dancing Cuff, 18 Karat Rose Gold, Amethysts, Topaz, Quartz
By Marie Mas
Located in Paris, FR
gemstones. The Cuff features 48 Stones (36,5 carats) : 8 African Amethysts, 8 Brazilian Amethysts, 6 Pink
Category

21st Century and Contemporary French Contemporary Cuff Bracelets

Materials

Amethyst, Quartz, Topaz, 18k Gold

Marie Mas Reversible Soft Bracelet, 18 Karat Rose Gold Amethyst Topaz Quartz
By Marie Mas
Located in Paris, FR
innovative mechanisms and vibrant contrasting gemstones. The bracelet features 48 Stones (36 carats) : 2 Blue
Category

21st Century and Contemporary French Contemporary Modern Bracelets

Materials

Amethyst, Quartz, Topaz, 18k Gold

Yvonne Leon s Ring Heart Shape in 18 Karat Yellow Gold and Pink Sapphires
By Yvonne Leon
Located in Paris, FR
Ring in Yellow Gold 18 carats 8gr approx. Diamonds 0,02 carats approx. Pink Sapphires 0,63 carats
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Yellow Gold

Tamara Comolli 48 Carat Sugarloaf Gemstone Tipped Bracelet
By Tamara Comolli
Located in Carmel-by-the-Sea, CA
with 48 carats of garnets and citrine. Measuring 8.5 inches in overall length and finished with her
Category

21st Century and Contemporary Modern Bracelets

Materials

Citrine, Garnet, 18k Gold, Yellow Gold

Art Deco .48 Carat Diamond 18k Engagement Ring
Located in Scotts Valley, CA
, with an estimated carat weight of .48, measurements are 4.95-5.05mm x 3.17mm. The color is J, clarity
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, 18k Gold, White Gold

48 Carat Citrine Drop Earrings
Located in Miami, FL
As November’s birthstone, Citrine is known to bring prosperity and success to its beholder. The gemstone is derived from the Quartz family and is a much desired stone for adornment a...
Category

21st Century and Contemporary Drop Earrings

Materials

Citrine

48 Carat Emerald Necklace Mounted in 14 Karat Gold
Located in Bangkok, TH
approximately 48.72 carats and the total diamond weight is approximately 17.78 carats. The necklace is brand new
Category

2010s Chain Necklaces

Materials

Diamond, Emerald, Gold, 14k Gold

Hanging 18 Karat Two-Tone 48 Carat Diamond Feather Earrings
Located in New York, NY
From our Estate Collection. A free-spirited creation dramatic pendant feather earrings capture the beauty and all the glam of the peacock's feather motif in intricately detailed 18K ...
Category

20th Century Unknown Modern Dangle Earrings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

14K Gold, 1.20 Carat Purple Amethyst and .48 Carat Diamond Halo Statement Ring
Located in McLeansville, NC
amethyst surrounded by a halo of full cut diamonds weighing approximately .48 total carats and with a thin
Category

Early 2000s Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

Platinum Diamond and Synthetic Sapphire Art Deco Engagement Ring .48 Carat GIA
Located in Greensboro, NC
(solitaire) & Single (accents) Solitaire's Carat: 0.39ct Accents' Carats: 0.09ctw Total Carats: 0.48ctw
Category

20th Century Unknown Art Deco Solitaire Rings

Materials

Diamond, Sapphire, Platinum

.48 Carat Round Brilliant Diamond Necklace 14 Karat White Gold Adjustable Lariat
Located in Greensboro, NC
Color: G Cut: Round Brilliant Total Carats: 0.48ctw Attached Drop Pendant: 3 1/4“ length (top of
Category

21st Century and Contemporary Unknown Drop Necklaces

Materials

Diamond, 14k Gold, White Gold

2.53 Carat Fancy Color Diamond gold Earrings
Located in Miami, FL
Approximately 2.05 Carats and 68 Round Brilliant Cut Diamonds Approximately .48 Carats in Weight, G Color, SI
Category

21st Century and Contemporary American Dangle Earrings

Materials

Brown Diamond, Diamond, 18k Gold

6.31 Carat Dangling Pear Shape Diamond Earrings in Platinum by The Diamond Oak
Located in New York, NY
weigh 4.02 carats total Larger Round Centers weigh 1.81 carats total, Smaller rounds weigh .48 carats
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Platinum

Victorian 48.00 Carat Amethyst Bracelet, circa 1880s
Located in London, GB
Six stunning oval cut amethysts totalling 48 carats feature in this bracelet from the Victorian era
Category

Antique 1880s Unknown Victorian Link Bracelets

Materials

Amethyst, 9k Gold

22.03 Carat Citrine and Diamond Ring
Located in Carmel-by-the-Sea, CA
diamonds weigh .48 carats in total. Size 6 can be resized on request.
Category

Late 20th Century Cocktail Rings

Materials

Citrine, Diamond, 18k Gold, White Gold

CDC Certified Cushion Ceylon Sapphire Diamond Ring in Platinum
Located in Great Neck, NY
weighing .48 carats GH-VS2 Set in Platinum 6.12 grams
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

3.37 Carat Aquamarine, Blue Zircon Diamond 18k Yellow Gold Cocktail Ring
By Sarosi By Timeless Gems
Located in Los Angeles, CA
round brilliant cut diamonds (.48 carats total) in this custom made 18k yellow gold ring. So pretty and
Category

21st Century and Contemporary American Artisan Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Zircon, Gold, 18k Gold, Yellow Gold

9.12 Carats Sapphires and 4.18 Carats Diamonds Gold Bracelet
Located in Cape May, NJ
is signed 18K and a makers mark. The bracelet is set with 19 oval cut .48 carat sapphires (9.12 CTW
Category

1990s American Tennis Bracelets

Materials

Blue Sapphire, Diamond, 18k Gold

1950s French 18 carat gold aquamarine and diamond earrings
Located in London, GB
bracelet made of 48 carats of aquamarine and a brooch with a 12 carat aquamarine. A photograph of the set
Category

Vintage 1950s French Modern Clip-on Earrings

Materials

Aquamarine, Diamond, 18k Gold

Sapphire and Diamond Earrings in Yellow Gold
Located in Litchfield, CT
two rich blue .85 carat sapphires surrounded by .48 carats of fine quality diamonds (H color, SI1
Category

Vintage 1980s Swiss Stud Earrings

Materials

Blue Sapphire, White Diamond, 18k Gold

Diamond Contemporary Buckle Ring
By Simon G Jewelry
Located in Carmel-by-the-Sea, CA
this classical theme, compliments of Gucci. Rendered in 18k white gold and studded with .48 carats of
Category

American Band Rings

Materials

18k Gold

Marco Bicego Diamond 18k Gold Africa Earrings
By Marco Bicego
Located in Cape May, NJ
Marco Bicego 18K Gold .48 Carat Diamond AFRICA Earrings. The earrings are in excellent estate
Category

21st Century and Contemporary Italian Dangle Earrings

Materials

Diamond, 18k Gold

3.31 Emerald Cut Ruby and Diamond Solitaire Ring in Platinum, GIA Certified
Located in Wailea, HI
Diamonds weighing .48 carats
Category

Late 20th Century American Solitaire Rings

Materials

White Diamond, Ruby, 18k Gold, Platinum

Cartier Gold and Diamond Bracelet Watch
By Cartier
Located in New York, NY
weighing approximately .48 carat.
Category

Vintage 1940s French Wrist Watches

Materials

Diamond, 18k Gold

Tanzanite and Diamond Ring
Located in Palm Beach, FL
carats, within a pavé-set frame of round diamonds, weighing approximately .48 carats, mounted in 18 kt
Category

21st Century and Contemporary Cocktail Rings

Materials

Tanzanite

Victorian 6.33 Carat Antique Diamond Gold Cross Pendant
Located in Carmel-by-the-Sea, CA
diamonds. The cross is further enhanced by .48 carats of rose cut diamonds on the edges of the scalloped
Category

Antique 1890s Victorian Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

2.58 Carat Old European Brilliant Diamond Platinum Ring
Located in Carmel-by-the-Sea, CA
accented by 98 brilliant round diamonds that weigh .48 carats in total. This ring is accompanied by an IGI
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Ruby Sapphire diamond gold american flag pin
Located in Miami, FL
American Flag Pin Composed of .48 Carats of Round Brilliant Cut Diamonds, .36 Carats of Rubies and
Category

21st Century and Contemporary American Brooches

Materials

Blue Sapphire, Diamond, Ruby, 18k Gold

Cushion Cut Fancy Intense Yellow Diamond Engagement Ring
Located in Miami, FL
gold 1.20 carat, cushion cut, fancy intense yellow diamond. .48 carat total weight in white diamonds on
Category

2010s Unknown Contemporary Engagement Rings

Materials

Yellow Diamond, 18k Gold, White Gold

Platinum PT 900 Emerald Ring with Diamonds
Located in Hong Kong, HK
emerald weight is .48 carats and diamond weight is .47 carats ! Ring dimensions in cm 1.3 x 2 x 2 ( L X W
Category

2010s Hong Kong Engagement Rings

Materials

Diamond, Emerald, Platinum

Bulgari Tubogas Diamond and 18 Karat Yellow Gold Flexible Snake Ring
By Bulgari
Located in New York City, NY
grade pear shaped center diamond, D SI1 .48 carat with GIA papers. Flexible ring so size varies but
Category

Late 20th Century Contemporary Fashion Rings

Materials

Ruby, 18k Gold

Anniversary Ring Natural Fancy Vivid Deep Yellow Diamond Band .48ct 14K
Located in Dearborn, MI
  100% Natural Diamonds .48 Carat Diamond Weight Brand New ***313***846***3700 Customer Care Your
Category

2010s Wedding Rings

Materials

Yellow Diamond, 14k Gold, White Gold

Art Deco Style 1.31 Carat Old Mine Cut Diamond and Emerald Ring
Located in Carmel-by-the-Sea, CA
of intense green emeralds and an additional .48 carats of brilliant white diamonds. Intricately
Category

Late 20th Century Engagement Rings

Materials

Diamond, Emerald, Platinum

Natural Blue Sapphire Diamond Halo Ring 14k Yellow Gold
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Sapphire = 48 Carat Cut: Oval Stone Size: 6 x 4 mm
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

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

American 1970s Gold, Enamel and Emerald Poodle Cuff Links by David Webb
By David Webb
Located in New York, NY
total weight of .48 carats. Circa 1970's. Signed, David Webb.
Category

Vintage 1970s American Cufflinks

Materials

Emerald, 18k Gold

Freeform Turquoise and Diamond Stud Earrings
Located in Miami, FL
18K yellow gold earrings with freeform shape turqouise and diamonds Features 18K yellow gold .48
Category

2010s North American Modern Stud Earrings

Materials

Diamond, Turquoise, 18k Gold, Yellow Gold

Chopard Happy Diamond 18K White Gold 0.48 Ct Diamond Ring
By Chopard
Located in Southampton, PA
features a band width and top height that measures 3mm - but it’s the exquisite display of .48 carats of
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Paul Binder Swiss Modern Diamond-set Gold Earrings
By Paul Binder
Located in Litchfield, CT
seventies, these earrings are all about style, all about look, all about fashion! The .48 carats of
Category

Vintage 1970s Swiss Modernist Clip-on Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

14kt Invisible Set Ruby and Diamond Halo Earrings
Located in Towson, MD
.48 carats of channel set diamonds in a halo around the rubies. These earrings can be worn two ways
Category

Early 2000s Stud Earrings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

1960 s Gold and Ruby Stirrup Cuff Links
Located in New York, NY
have 4 cabochon rubies with an approximate total weight of .48 carats. The hinged cuff links have a
Category

Vintage 1960s French Cufflinks

Materials

18k Gold

Art Deco Diamond-Set Platinum Ring
Located in Litchfield, CT
) surrounded by .48 carats of fine stones (G color and SI1 clarity), this fabulous Art Deco ring beguiles the
Category

Vintage 1930s French Art Deco Cocktail Rings

Materials

Diamond, Platinum

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48 Carat For Sale on 1stDibs

Find the exact 48 carat you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Making the right choice when shopping for a 48 carat may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. 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. A 48 carat from LB Exclusive, Roshe Jewels and Meghna Jewels — each of whom created a beautiful version of this treasured accessory — is worth considering. A 48 carat of any era or style can lend versatility to your look, but a version featuring Diamond, from our inventory of 663, is particularly popular. A round cut version of this piece has appeal, but there are also oval cut and emerald cut versions for sale. If you’re browsing our inventory for a 48 carat, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 48 Carat?

The price for a 48 carat starts at $65 and tops out at $1,750,000 with these rings, on average, selling for $5,627.

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.