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High Dome Aquamarine Ring Cabochon Cocktail Ring Gold Black Diamond
High Dome Aquamarine Ring Cabochon Cocktail Ring Gold Black Diamond

High Dome Aquamarine Ring Cabochon Cocktail Ring Gold Black Diamond

By J DAUPHIN

Located in Los Angeles, CA

Hidden along the inner back of the setting is a star detail set with a black diamond, creating a discreet sacred element known only to the wearer.

Category

2010s Victorian Cocktail Rings

Materials

Black Diamond, Aquamarine, 14k Gold, Gold Plate, Brass

Gold, White Gold, and Diamond Heart Charm
Gold, White Gold, and Diamond Heart Charm

Gold, White Gold, and Diamond Heart Charm

Located in Princeton, NJ

A very cute and highly fashionable 18 karat yellow and white gold solid heart charm, embellished with three diamond set star motifs and open in the center with a diamond border surro...

Category

Late 20th Century American Artisan Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

Fleur de Lis Cuff Bracelet Diamond Infinite Black Enamel Word Gold
Fleur de Lis Cuff Bracelet Diamond Infinite Black Enamel Word Gold

Fleur de Lis Cuff Bracelet Diamond Infinite Black Enamel Word Gold

By J DAUPHIN

Located in Los Angeles, CA

Fleur de Lis Cuff Bracelet Diamond Infinite Black Enamel Word Gold Designer: J DAUPHIN The Fleur de Lis Cuff is handcrafted in 14k gold plated brass, finished in hand painted black...

Category

2010s Indian Victorian Bangles

Materials

Diamond, White Diamond, 14k Gold, Gold Plate, Enamel

Sacred Heart Ring Cross Moon Cocktail Ring Gold Black Diamond
Sacred Heart Ring Cross Moon Cocktail Ring Gold Black Diamond

Sacred Heart Ring Cross Moon Cocktail Ring Gold Black Diamond

By J DAUPHIN

Located in Los Angeles, CA

A central heart is pierced by an upright dagger that ends in a cross and flush set with a black diamond, flanked by an open crescent moon and a five pointed star.

Category

2010s Indian Contemporary Fashion Rings

Materials

Black Diamond, Yellow Gold, 14k Gold, Gold

Heart Necklace Pearl Rosario Chain White Diamond Silver J Dauphin
Heart Necklace Pearl Rosario Chain White Diamond Silver J Dauphin

Heart Necklace Pearl Rosario Chain White Diamond Silver J Dauphin

By J DAUPHIN

Located in Los Angeles, CA

Heart Necklace Pearl Rosario Chain White Diamond Silver Designer: J DAUPHIN The Diamond Pearl Heart is a solid silver puffy heart with an aged patina, the domed face set in a latti...

Category

2010s American Victorian Chain Necklaces

Materials

White Diamond, Pearl, Silver, Sterling Silver

Chanel Camelia & Comete Motif Pearl Diamond 18k White Gold Necklace
Chanel Camelia & Comete Motif Pearl Diamond 18k White Gold Necklace

Chanel Camelia & Comete Motif Pearl Diamond 18k White Gold Necklace

By Chanel

Located in Feasterville, PA

These camellias embody Chanel's timeless elegance and femininity. The star motifs, set with dazzling diamonds, offer a radiant contrast, symbolizing Chanel’s celestial fascination.

Category

20th Century Modern Pendant Necklaces

Materials

Diamond, Pearl, 18k Gold, White Gold

Antique English 18K Gold and Diamond Buckle Ring
Antique English 18K Gold and Diamond Buckle Ring

Antique English 18K Gold and Diamond Buckle Ring

Located in New York, NY

Made in Chester, this 18K gold English strap and buckle ring is set with an old mine-cut diamond. The ring centers a buckle motif highlighted by a star-set old mine-cut diamond accen...

Category

Antique Late 19th Century Band Rings

Materials

Diamond, 18k Gold

Dower & Hall 14k Gold & Diamond True North Pendant
Dower & Hall 14k Gold & Diamond True North Pendant

Dower & Hall 14k Gold & Diamond True North Pendant

Located in London, GB

This striking 15mm True North pendant is from a new collection of Guiding Stars with designs inspired by our ever-popular True North charms. The 14ct yellow gold star is claw set wit...

Category

21st Century and Contemporary British Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold

Vintage George Lederman 18k Yellow Gold Ruby Diamond Teddy Bear Pin Brooch
Vintage George Lederman 18k Yellow Gold Ruby Diamond Teddy Bear Pin Brooch

Vintage George Lederman 18k Yellow Gold Ruby Diamond Teddy Bear Pin Brooch

Located in Montclair, NJ

--Stone(s):-- (2) Natural Genuine Rubies - Round Brilliant Cut - Pave Set - Vivid Red Color - on Eyes - 0.06ctw (approx.) (1) Natural Genuine Diamond - Round Brilliant Cut - Star Pav...

Category

20th Century Brooches

Materials

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

Mario Buccellati Diamond and 18 Karat Gold Bangle Bracelet, 1970s
Mario Buccellati Diamond and 18 Karat Gold Bangle Bracelet, 1970s

Mario Buccellati Diamond and 18 Karat Gold Bangle Bracelet, 1970s

By Mario Buccellati

Located in Roma, RM

The wide, rigid bangle is defined by a delicately brushed and engraved gold surface, creating a soft, fabric-like texture that is emblematic of Buccellati’s hand-worked technique. Di...

Category

Vintage 1970s Italian Bangles

Materials

Diamond, Gold

Retro Diamond Choker Necklace in 14k Yellow Gold with Adjustable Length
Retro Diamond Choker Necklace in 14k Yellow Gold with Adjustable Length

Retro Diamond Choker Necklace in 14k Yellow Gold with Adjustable Length

Located in New York, NY

Center of the necklace features hollow tubular panel accented with diamond set star motifs, completed with wide snake chain.

Category

21st Century and Contemporary Retro Link Necklaces

Materials

Diamond, Yellow Gold

Seidengang .15 Carat Diamond Leo Yellow Gold Pendant Necklace
Seidengang .15 Carat Diamond Leo Yellow Gold Pendant Necklace

Seidengang .15 Carat Diamond Leo Yellow Gold Pendant Necklace

By SeidenGang

Located in Stamford, CT

Crafted in 18k yellow gold, this pendant features A roarig Lion and star. Accented with 3 diamonds set at bottom of pendant with one bezel set diamond along the 18k yellow gold 17 in...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Edwardian enamel and diamond watch ring, circa 1910.
Edwardian enamel and diamond watch ring, circa 1910.

Edwardian enamel and diamond watch ring, circa 1910.

Located in London, GB

Edwardian enamel and diamond watch ring. Set with thirty one rose cut diamonds in closed back grain and collet settings with a combined approximate weight of 0.31 carats, to an ornat...

Category

Early 20th Century Edwardian Cocktail Rings

Materials

Diamond, 18k Gold, Enamel

20th Century Sapphire Diamond Gold Platinum Earrings
20th Century Sapphire Diamond Gold Platinum Earrings

20th Century Sapphire Diamond Gold Platinum Earrings

Located in New York, NY

A stunning and bold pair of natural, no-heat sapphire briolette-cut drops suspended from a diamond-studded cap and mounting with alternating star shape and round bezel-set diamonds, ...

Category

Mid-20th Century American Victorian Dangle Earrings

Materials

Blue Sapphire, White Diamond, Gold, Platinum

Antique 15ct Gold Victorian Ruby Diamond & Pearl Ring
Antique 15ct Gold Victorian Ruby Diamond & Pearl Ring

Antique 15ct Gold Victorian Ruby Diamond & Pearl Ring

Located in Brighton, GB

Antique Ring 15ct Gold Stamped Hallmarked Chester 1885 Beautiful Victorian Ring. Set with a Star-Set Centre Diamond, Plus Natural Rubies & Seed Pearls.

Category

Antique Early 19th Century English Victorian Engagement Rings

Materials

Diamond, Pearl, Ruby, Gold, 15k Gold

VAN CLEEF & ARPELS Carved Emerald, Ruby, Emerald & Ruby Bead, And Diamond Brooch
VAN CLEEF & ARPELS Carved Emerald, Ruby, Emerald & Ruby Bead, And Diamond Brooch

VAN CLEEF & ARPELS Carved Emerald, Ruby, Emerald & Ruby Bead, And Diamond Brooch

By Van Cleef & Arpels

Located in New York, NY

At its heart, a richly carved emerald blossom is crowned with a delicate diamond-set star, radiating outward in a harmonious quatrefoil silhouette.

Category

Vintage 1960s Brooches

Materials

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

7 Carat SI/H Natural Baguette Diamond Designer Pendant 18K Rose Gold Jewelry
7 Carat SI/H Natural Baguette Diamond Designer Pendant 18K Rose Gold Jewelry

7 Carat SI/H Natural Baguette Diamond Designer Pendant 18K Rose Gold Jewelry

Located in Deira, AE

Two almond-shaped eyes cut symmetrically into a domed brow densely paved in baguette diamonds. A pavé-set diamond star where the nose falls, its round brilliants glowing with softer,...

Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, Rose Gold

Antique Victorian Mourning Cross Pendant in Gold, Silver, Pearls, Diamonds.
Antique Victorian Mourning Cross Pendant in Gold, Silver, Pearls, Diamonds.

Antique Victorian Mourning Cross Pendant in Gold, Silver, Pearls, Diamonds.

Located in Malmö, Skåne län

Ornately decorated with small river pearls around a silver star set with rose-cut diamonds centering a pearl.

Category

Antique Late 19th Century English High Victorian Pendant Necklaces

Materials

Diamond, Pearl, Gold, 14k Gold, Silver

Modern Lapis Lazuli Natural Coral Diamond 18K Yellow Gold Drop Earrings
Modern Lapis Lazuli Natural Coral Diamond 18K Yellow Gold Drop Earrings

Modern Lapis Lazuli Natural Coral Diamond 18K Yellow Gold Drop Earrings

By SCALA GIOIELLI

Located in Marcianise, IT

At the heart of the composition, a small star set with natural brilliant-cut diamonds provides a luminous focal point that immediately draws the eye.

Category

21st Century and Contemporary Italian Modern Drop Earrings

Materials

Coral, Diamond, Lapis Lazuli, 18k Gold, Yellow Gold

Antique Victorian Ring Diamond Pearl Blue Enamel 10k Rose Gold Signet Pinky 5
Antique Victorian Ring Diamond Pearl Blue Enamel 10k Rose Gold Signet Pinky 5

Antique Victorian Ring Diamond Pearl Blue Enamel 10k Rose Gold Signet Pinky 5

Located in Torrance, CA

The distinct Victorian era ring makes a nice statement! With a celestial diamond set star to the center of a blue enameled mount and pearl surround, the signet ring is great worn on ...

Category

Late 20th Century Unknown Victorian Signet Rings

Materials

Diamond, White Diamond, Pearl, 10k Gold, Rose Gold, Enamel

GIA Certified H/VS2 1.03 Carat Diamond in Bombe Edwardian-Style Platinum Ring
GIA Certified H/VS2 1.03 Carat Diamond in Bombe Edwardian-Style Platinum Ring

GIA Certified H/VS2 1.03 Carat Diamond in Bombe Edwardian-Style Platinum Ring

By Eytan Brandes

Located in Sherman Oaks, CA

Each plate hosts between one and five stones meticulously set by our best gem-setter. The little banner-shaped plates around the center stone give it a whimsical eight-pointed star ...

Category

2010s American Edwardian Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Chanel Comète Étoile Filante 18K White Gold Diamond Crossover Ring
Chanel Comète Étoile Filante 18K White Gold Diamond Crossover Ring

Chanel Comète Étoile Filante 18K White Gold Diamond Crossover Ring

By Chanel

Located in Guangzhou, CN

Material: 18K white gold Gemstones: It features a center round brilliant-cut diamond in the shooting star, with additional round diamonds set along the "tail" or bands.

Category

2010s Fashion Rings

Materials

White Gold

Antique Ring 0.65 ctw Diamonds solid 14K Rose Gold Silver Ø US 3.25/ 1.59 gr
Antique Ring 0.65 ctw Diamonds solid 14K Rose Gold Silver Ø US 3.25/ 1.59 gr

Antique Ring 0.65 ctw Diamonds solid 14K Rose Gold Silver Ø US 3.25/ 1.59 gr

Located in SE

Gold and Silver composite Crown 15 mm x 15 mm at axes x 3.5 mm deep is an openwork 12-point Star set with thirteen old diamond cut Diamonds on solid 14K Rose (tested) band.

Category

Antique Early 1900s German Art Nouveau Cluster Rings

Materials

Diamond, 14k Gold, Rose Gold, Silver

Antique gold and pavé turquoise pendant earrings
Antique gold and pavé turquoise pendant earrings

Antique gold and pavé turquoise pendant earrings

Located in New York, NY

Each earring is designed with a stylized gold surmount leading to an oval bulla densely pavé-set with turquoise cabochons. At the center of each cluster is a diamond-set star motif, ...

Category

Antique 1870s English Victorian Dangle Earrings

Materials

Diamond, Turquoise, Gold, 15k Gold

Cartier 100 Year Anniversary Celestial Trinity Bangle
Cartier 100 Year Anniversary Celestial Trinity Bangle

Cartier 100 Year Anniversary Celestial Trinity Bangle

By Cartier

Located in West Palm Beach, FL

Exquisitely fashioned in 18k white, yellow, and rose gold, the design pays homage to Cartier’s timeless aesthetic while shimmering with 100 round brilliant-cut diamonds, star-set in ...

Category

Early 2000s French Modern Bangles

Materials

Diamond, 18k Gold, Rose Gold, White Gold, Yellow Gold

French Retro Tubogas Necklace
French Retro Tubogas Necklace

French Retro Tubogas Necklace

Located in New York, NY

Created in the late 1930s to early 1940s, this Retro 18K gold and diamond tubogas necklace was made in France. The necklace is designed as a tapering tubogas link chain mounted with ...

Category

Mid-20th Century Retro Link Necklaces

Materials

Diamond, 18k Gold

French Retro Triangular "Tubogas" Bracelet
French Retro Triangular "Tubogas" Bracelet

French Retro Triangular "Tubogas" Bracelet

Located in New York, NY

Created in Paris in the 1940s, this Retro French bracelet is composed of 18K gold and diamonds. Highly flexible, the tapering form is composed of bombé, peaked tubogas links bound by...

Category

Mid-20th Century French Retro Retro Bracelets

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Antique Silk Embroidery Azerbaijani Sky-Blue Background Textile, 18th Century
Antique Silk Embroidery Azerbaijani Sky-Blue Background Textile, 18th Century

Antique Silk Embroidery Azerbaijani Sky-Blue Background Textile, 18th Century

Located in Ferrara, IT

This textile has an all-over geometric design with alternating rows of hexagonal and diamond-shaped motifs set on a sky-blue background color. the border of this textile follows in t...

Category

Antique 18th Century Azerbaijani Other Central Asian Rugs

Materials

Silk

A Victorian Renaissance Revival Gem-set Pendant
A Victorian Renaissance Revival Gem-set Pendant

A Victorian Renaissance Revival Gem-set Pendant

Located in London, GB

A Victorian Renaissance revival gem-set pendant, the central cushion shaped faceted ruby set to the centre of an old brilliant-cut diamond encrusted yellow gold 8-point star, set wit...

Category

Antique 1850s British Renaissance Revival Pendant Necklaces

Materials

Diamond, Pearl, Ruby, Yellow Gold, Enamel, Gold, 18k Gold

A Victorian gold, pearl, diamond and blue enamel suite
A Victorian gold, pearl, diamond and blue enamel suite

A Victorian gold, pearl, diamond and blue enamel suite

Located in London, GB

A Victorian gold, pearl, diamond and blue enamel suite, consisting of a pendant-necklace and a pair of earrings, the pendant in the form of a golden round dome, centrally-set with an...

Category

Antique 19th Century British Victorian Link Necklaces

Materials

Diamond, Natural Pearl, 15k Gold, 18k Gold

Victorian Garnet and Diamond Pendant
Victorian Garnet and Diamond Pendant

Victorian Garnet and Diamond Pendant

Located in London, GB

A Victorian garnet and diamond pendant, the old brilliant-cut diamond set star to the centre of a round cabochon-cut garnet, within a frame of entwined gold surmounted from a twisted...

Category

Antique 19th Century British Victorian Pendant Necklaces

Materials

Diamond, Garnet, 18k Gold

Royal Blue Enamel and Diamond Bracelet
Royal Blue Enamel and Diamond Bracelet

Royal Blue Enamel and Diamond Bracelet

Located in London, GB

The enamel is a rich royal blue and has a glittering, diamond set star set in the centre. The blue provides a dramatic contrast to the yellow gold, and the central star adds sparkle ...

Category

Antique Late 19th Century British Victorian Chain Bracelets

Materials

Diamond, Yellow Gold

Victorian Oval-Shaped Amethyst and Diamond Pendant
Victorian Oval-Shaped Amethyst and Diamond Pendant

Victorian Oval-Shaped Amethyst and Diamond Pendant

Located in London, GB

This pendant features a wonderful cabochon-cut amethyst in a rich and regal purple colour, in which is set a star set with dazzling diamonds. At the top of the amethyst is a lovely d...

Category

Antique 1860s British Victorian Pendant Necklaces

Materials

Amethyst, Diamond, Natural Pearl, Gold, Silver

Fine Victorian Garnet, Pearl and Diamond Semi Parure
Fine Victorian Garnet, Pearl and Diamond Semi Parure

Fine Victorian Garnet, Pearl and Diamond Semi Parure

Located in London, GB

The pendant matches the earrings, featuring a cabochon-cut garnet which is set with a diamond-set star. Below the garnet is a half-moon motif set with pearls.

Category

Antique 1860s British Victorian Drop Necklaces

Materials

Diamond, Garnet, Pearl, Yellow Gold

Mid-Victorian Half Pearl, Diamond and Blue Enamel Suite
Mid-Victorian Half Pearl, Diamond and Blue Enamel Suite

Mid-Victorian Half Pearl, Diamond and Blue Enamel Suite

Located in London, GB

Each piece features a royal blue enamel oval set with a star of diamonds and pearls. Further pearls and blue enamel form the boarder to the central piece.

Category

Antique 1860s British Victorian Drop Necklaces

Materials

Diamond, Natural Pearl, 18k Gold, Yellow Gold

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Star Set Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate star set diamond for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. Our collection of these items for sale includes 44 vintage editions and 45 modern creations to choose from as well. You’re likely to find the perfect star set diamond among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those produced as recently as the 21st Century. There have been many well-made iterations of the classic star set diamond over the years, but those made by Five Star Jewelry, Tiffany & Co. and Trianon are often thought to be among the most beautiful. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes cabochon and brilliant cut alternatives. There aren’t many items for men if you’re seeking a star set diamond, as most of the options available are for women and unisex.

How Much is a Star Set Diamond?

The price for a star set diamond starts at $125 and tops out at $37,559 with these rings, on average, selling for $3,950.

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.