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Diamond Jewelry

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4,046
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Period: 19th Century
Gemstone: Diamond
Antique Silver Gold Rose Cut Diamond Ruby Brooch
Located in New York, NY
Antique 14k gold and silver brooch, featuring rose cut diamonds and center 8mm ruby cabochon. Brooch measures 46mm x 30mm. Tested gold and silver, not marked. Weighs 10.8 grams.
Category

19th Century Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold, Silver

Antique Diamond Silver and Gold Crescent Pendant, Circa 1890
Located in London, GB
An antique diamond crescent pendant, set with a row of old-cut diamonds, graduating from the centre, in cut down settings, surrounded by old-cut diamonds, in a grain set channel, wit...
Category

1890s European Late Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, Silver

Victorian Regard Acrostic Ring
Located in London, GB
Here we have a delightful 18ct yellow gold 'REGARD' ring taken from the Victorian era; a time when jewels such as this sent secret messages to an admirer. The first letter of each st...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

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

Circa 1920s Platinum Art Deco Diamond Eternity Band Size 4.5
Located in Atlanta, GA
Year: 1920s Item Details: Ring Size: 4.5 (Not Sizable) Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.1 grams Diamond Details: .50ct total weight, antique single cut, F Colo...
Category

Early 19th Century Art Deco Antique Diamond Jewelry

Materials

Diamond, Platinum

Victorian Ruby and Diamond Cluster Ring
Located in London, GB
Here we have a beautiful cluster ring taken from the Victoria era. This antique piece has been crafted from a rich 18ct yellow gold and showcases an oval faceted vivid red ruby with ...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Antique 0.87Ct Diamond and 18k Yellow Gold Brooch Circa 1890
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 0.87 carat diamond, 18 karat yellow gold brooch; part of our diverse antique Victorian floral brooches collection. This fine and impressive Victorian brooch ha...
Category

1890s Antique Diamond Jewelry

Materials

Diamond, Yellow Gold

Victorian Diamond 18k Yellow Gold Silver Flower Brooch
Located in Beverly Hills, CA
One Victorian Diamond 18k Yellow Gold Silver Flower Brooch. Featuring numerous old European, rose, and senaille cut diamonds with a total weight of approximately 3.75 carats, graded ...
Category

1880s Victorian Antique Diamond Jewelry

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Silver

Victorian 2.00 Carat Old Cushion Cut Diamond Cluster Ring
Located in London, GB
Here we have a scintillating diamond cluster ring taken from the Victorian era. This antique piece has been crafted from a rich 18ct yellow gold and features an impressive 2.00ct old...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Antique Brooch Conversion Diamond Daisy Ring
Located in Brisbane City, QLD
Rather remarkably, this ring would have originally started life as part of an antique French brooch. The daisy is likely to have been part of a larger diamond 'en tremblant' brooch a...
Category

Late 19th Century French Antique Diamond Jewelry

Materials

Diamond, 18k Gold, Silver, Gold

Antique 15ct Gold Victorian Sapphire & Diamond Brooch
Located in Brighton, GB
Antique Gold Brooch 15ct Gold Hallmarked Birmingham 1895 Makers Mark L & L Fabulous, Victorian Oval Shaped Brooch. Set with Gorgeous Sapphires & Diamonds. Beautifully Detailed...
Category

Late 19th Century English Victorian Antique Diamond Jewelry

Materials

Diamond, Sapphire, Gold, 15k Gold

Certified 3, 65 Ct Natural Untreated Sapphires and Diamonds Drop Earrings
Located in București, B
This exquisite pair of pear cut sapphires is certified as natural and unheated by the world's leading colored gemstone authority, Antwerp International Gemological Laboratories (AIG...
Category

Early 19th Century Romanian Art Nouveau Antique Diamond Jewelry

Materials

Diamond, Sapphire, 14k Gold

Victorian Sapphire Diamond 10k Rose Gold Ring
Located in Beverly Hills, CA
One Victorian Sapphire Diamond 10k Rose Gold Ring. Featuring one oval mixed cut sapphire weighing 1.72 carats. Accented by six senaille cut diamonds with a total weight of approximat...
Category

1880s Victorian Antique Diamond Jewelry

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 10k Gold, Rose Gold

Antique Victorian Colombia Emerald, Pearl, & Old Mine Diamond Pendant Circa 1880
Located in Miami, FL
Expert craftsmanship and magisterial gemstones from a bygone era, the Victorian period. This silver pendant bears a 3.65 carat (approx.) emerald center stone, adorned with 34 old mi...
Category

19th Century Colombian Victorian Antique Diamond Jewelry

Materials

Diamond, Emerald, Pearl, Silver

Victorian 14K Gold Diamond and Sapphire Silver Top Bracelet
Located in Venice, CA
This elegant sapphire and diamond Victorian bracelet contains a saturated dark blue sapphire surrounded by Old Mine Cut diamonds. It is flanked by diamond encrusted wavy banner-like ...
Category

1880s Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold, Silver

19th Century Ceylon Yellow Sapphire Diamonds 18 Karat Yellow Gold Flower Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold and platinum. The setting of this feminine antique ring represents a flower whose heart is adorned with a natural yellow sapphire held in a closed settin...
Category

Late 19th Century French Belle Époque Antique Diamond Jewelry

Materials

Diamond, White Diamond, Sapphire, Yellow Sapphire, Gold, 18k Gold, Yello...

Antique Victorian Ring Turquoise Mine Diamond Cluster 14k Yellow Gold Halo 5.75
Located in Torrance, CA
Finely detailed antique Victorian era cluster ring (circa 1880s to 1900s) crafted in 14k yellow gold. Turquoise cabochon measures 9mm x 7mm, accented with 16 estimated 0.04 carat ol...
Category

Late 19th Century Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, White Diamond, Turquoise, Gold, 14k Gold, Yellow Gold

Victorian 2.45 Ctw. Old Mine Cut Diamond 5-Stone Half-Hoop Ring
Located in Los Angeles, CA
English Victorian era 2.45 Ctw. Old Mine Cut Diamond 5-Stone Ring composed of 18k yellow gold. With a center Old Mine Cut diamond that is estimated to be 0.88 carats and M-N color & ...
Category

1870s English Victorian Antique Diamond Jewelry

Materials

Diamond, 18k Gold, Yellow Gold

Antique Diamond and 9 Carat Gold Star Setting Band
Located in Chipping Campden, GB
This classic style band is modelled in 9carat gold and the old mine cut diamond which is set in the star setting measures 20pts. Size: U or 10 Width: 7.5mm Weight: 4.8g
Category

1880s British Victorian Antique Diamond Jewelry

Materials

Diamond, Gold

Victorian Old European Cut Diamond Ruby 10 Karat Yellow Gold Antique Snake Ring
Located in Philadelphia, PA
Band is designed as a coiled snake with a grooved scale texture throughout Centering an old European cut diamond bezel set in the head Weighing approximately 0.45 carat - H color wi...
Category

1870s Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold, 10k Gold, Yellow Gold

Victorian 1.05ct Diamond Heart Pendant, c.1880s
Located in London, GB
Encrusted with diamonds, this Victorian pendant is beautiful. The heart shaped design centres around an old cut diamond of 0.15 carat which is surrounded by multiple stones of variou...
Category

1880s Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, 15k Gold, Silver

Victorian 3.25 Carat Total Weight Old European Cut Diamond 18k Yellow Gold
Located in Beverly Hills, CA
One Pair of Victorian 3.25 Carat Total Weight Old European Cut Diamond 18k Yellow Gold Platinum Earrings. Featuring two old European cut diamonds with a total weight of approximately...
Category

1890s Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Platinum

An 18 Carat Gold Turquoise and Diamond Ring
Located in Amsterdam, NL
An antique, 18 carat yellow gold cluster ring set with an oval, cabochon cut turquoise surrounded with twelve old cut diamonds and with three old cuts on each side in the shank (in t...
Category

1880s English Antique Diamond Jewelry

Materials

Diamond, Turquoise, Gold, 18k Gold

Victorian Lapis Lazuli Pearl Diamond 14 Karat Gold Silver Antique Cross Pendant
Located in Philadelphia, PA
Designed as a marquise shape surmount suspending a cross pendant of carved lapis lazuli Opaque ultramarine blue with gold pyrite flecking and decorated with vine motif appliqué Sil...
Category

1860s Victorian Antique Diamond Jewelry

Materials

Diamond, Lapis Lazuli, Pearl, Gold, 14k Gold, Yellow Gold, Silver

Victorian Diamond and Gold you and Me Ring
Located in London, GB
Sentimental in nature, symbolizing the melding of two into one, or two souls lying along each other for eternity is this romantic diamond ring from Victorian era. Sensual and compl...
Category

19th Century Unknown High Victorian Antique Diamond Jewelry

Materials

Diamond, Gold

French 19th Century Diamonds 18 Karat Yellow Gold Round Shape Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, horse head hallmark. A charming round-shaped antique ring set with antique cushion-cut diamonds, the center one being larger and set with folded claws. ...
Category

Late 19th Century French Napoleon III Antique Diamond Jewelry

Materials

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

Victorian 18 Karat Gold Ruby Rose Cut Diamond Snake Bar Brooch
Located in Vilnius, LT
This is a Victorian snake bar brooch crafted in 18K gold. Circa 1890. The piece features ruby and rose cut diamonds. Eyes are encrusted with 2 round cut diamonds. Has a C clasp. ...
Category

Late 19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold

Victorian 2.00ct Emerald and Diamond Cluster Ring, c.1880s
Located in London, GB
A show stopping 2.00 carat Emerald, takes pride of place in this Victorian cluster ring. The cushion cut stone is fully natural and of Columbian origin, lending to it’s vivid colouri...
Category

1880s Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, Emerald, 18k Gold

Antique Victorian Ruby 0.10 Carat Diamond 15 Karat Yellow Gold Vintage Brooch
Located in London, GB
Unusual and fine antique Victorian brooch handcrafted in 15 karat yellow gold composed of 3 decorative floral section featuring an approximate 0.10 carat diamond old European round cut claw - prong set in a deep star shaped design, and with smaller red stones on the outer sections with similar settings. A pin and a small hoop on the back for fastening, unpolished probably since it has been made, just lightly cleaned as you can see from the pictures, from and old estate jewellery collection here in the London UK. We offer a free polishing service on purchase if preferred. Natural Diamond Colour: G - H Clarity: SI (eye clean) Cut: Round Cut Old...
Category

Late 19th Century British Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold, 15k Gold, Yellow Gold

One Antique Austro-Hungarian Diamond 14k Rose Gold Cluster Ring
Located in Beverly Hills, CA
One Antique Austro-Hungarian Diamond 14k Rose Gold Cluster Ring. Featuring seven rose cut diamonds with a total weight of approximately 1.30 carats, graded near-colorless, SI-I clari...
Category

1880s Antique Diamond Jewelry

Materials

Diamond, Gold, 14k Gold, Rose Gold

Victorian Emerald Diamond 14k Yellow Gold Silver Three Stone Ring
Located in Beverly Hills, CA
One Victorian Emerald Diamond 14k Yellow Gold Silver Three Stone Ring. Featuring one round mixed cut emerald weighing approximately 0.40 carat. Accented by two old European cut diamo...
Category

1890s Victorian Antique Diamond Jewelry

Materials

Diamond, White Diamond, Emerald, Gold, 14k Gold, Yellow Gold, Silver

Victorian Ruby Pearl Sapphire and Diamond Triple Cluster Ring
Located in London, GB
This is a wonderful 18ct yellow gold Victorian triple cluster ring. The centre of the ring is set with a button pearl with a lovely white lustre. On one side there is a ruby and the ...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Pearl, Ruby, Sapphire, Gold, Yellow Gold

Victorian 1897 18K Yellow Gold Old European Cut Diamond Pearl Cocktail Ring
Located in Houston, TX
Gender: Ladies Metal Type: 18K Yellow Gold Ring Size: 5.5 Head measurements: 9.50mm in width Shank maximum width: 2.45mm Weight: 2.40 grams 18K yellow gold three-across diamo...
Category

19th Century Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, Pearl, Gold, 18k Gold, Yellow Gold

Antique Victorian 18K Yellow Gold Marquee Head Rose Cut Diamond Cocktail Ring
Located in Houston, TX
Gender: Ladies Metal Type: 18K Yellow Gold Ring Size: 6 Weight: 3.30 grams Width: 2.00mm Ladies handmade 18K yellow gold, diamond victorian (1837-1901) cocktail ring with a half...
Category

19th Century Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Starfish White Vitreous Enamel & Diamond Pendant 18kt Gold Sea Theme Pendant
Located in Jupiter, FL
Exquisite and rare vitreous white enamel pendant in 18KT yellow gold accompanied by a center diamond 1.8mm. GRAM WEIGHT (pendant only): 1.90gr GOLD: 18KT yellow gold CHAIN: 18" DIA...
Category

19th Century Thai Contemporary Antique Diamond Jewelry

Materials

Diamond, 18k Gold, Yellow Gold

1930s-1935 Art Deco with Diamonds and Diffusion-Treated Sapphires 18k Gold Ring
Located in MADRID, ES
This Art Deco style ring, dating back to the period of 1930-1935, is crafted from 18k gold and features a stunning combination of diamonds and diffusion-treated sapphires. The center...
Category

1830s Unknown Art Deco Antique Diamond Jewelry

Materials

Diamond, Sapphire, 18k Gold

Victorian 4.55ct Diamond and Pearl Brooch, c.1880s
Located in London, GB
A stunning pearl is surrounded by a double diamond halo, with an elegant tied bow design in this Victorian brooch. The closest diamond halo features 18 old cut diamonds of 0.10 carat...
Category

1880s Unknown Victorian Antique Diamond Jewelry

Materials

Diamond, Pearl, 18k Gold, Silver

Victorian 18K Diamond 1.50ctw Button Stretch Bracelet
Located in Narberth, PA
A gorgeous gold button nugget bracelet from the Victorian (ca1885) era! This stunning bracelet is made of 18k yellow gold and holds seven sparkling Old Mine cut diamonds. The diamon...
Category

1880s Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, Yellow Gold

A Victorian Gold and Garnet Pendant with a Diamond Star
Located in Amsterdam, NL
A 15 carat gold Victorian oval pendant set with a large deep red carbuncle garnet incrusted with a six pointed star at the centre set with a large cushion cut diamond surrounded by s...
Category

1890s English Victorian Antique Diamond Jewelry

Materials

Diamond, Garnet, Gold, 15k Gold

Bracelet motif floral en or 18 carats serti de diamants
Located in LILLE, FR
Découvrez ce magnifique bracelet motif floral en or 18 carats serti de diamants. Un bijou de luxe d'une pureté de 750 millièmes qui ajoutera une touche de glamour à votre poignet. A...
Category

Early 19th Century Antique Diamond Jewelry

Materials

Diamond, 18k Gold

Victorian Memento Mori Jet or Charcoal Skull with Rose Cut Diamond Eyes
Located in Fairfield, CT
This striking vintage skull pendant is a captivating piece of jewelry that blends gothic charm with classic elegance. The pendant is skillfully carved from what appears to be jet or charcoal, providing a deep, matte contrast to the gleaming gold-tone bail that attaches it to a chain. During the 19th century, jet was established as a gemstone for mourning, and demand for mourning jewelry during the Victorian era led to extensive excavations of jet in Whitby. Victorian Whitby Jet jewelry...
Category

1890s Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Victorian 0.52 Carat Old Cut Diamond Cluster Ring
Located in London, GB
This is a truly wonderful antique diamond cluster ring. The head of the ring dates back to the Victorian era and the diamonds are all bright white chunky old cuts. The central diamon...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, Yellow Gold, Silver

Victorian Old Cut Diamond Three-Stone Ring
Located in London, GB
Here we have a lovely three stone diamond ring borrowing from the late Victorian style. Set upon a thin 18ct yellow gold band, the face of the piece presents a trio of old cut diamon...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, Yellow Gold

Victorian Double Heart Ruby Sapphire and Diamond Crowned Ring
Located in London, GB
Here we have a fine example of a Victorian double heart ring. In this case, a round ruby and sapphire sit at the centre of an accentuating boarder of rose cut diamonds. A conjoining ...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, Blue Sapphire, Gold, Platinum

Art Nouveau Enamel & Old Cut Diamond Brooch
Located in London, GB
An Art Nouveau brooch that can also be worn a choker pendant. 18ct gold with French hallmarks with Plique-a-jour enamelling. Old cut diamonds with natural pearl. Central diamon...
Category

1890s French Art Nouveau Antique Diamond Jewelry

Materials

Diamond, Natural Pearl, 18k Gold, Enamel

Antique Moonstone Diamond Drop Earrings
Located in London, GB
Here we have a lovely pair of moonstone and diamond drop earrings that date back to the Victorian era. The cabochon moonstones are surrounded by 14 old cut diamonds and there is a si...
Category

19th Century Antique Diamond Jewelry

Materials

Diamond, Moonstone, Gold, 18k Gold, Silver

19th Century Antique Diamond encrusted Crescent Moon Brooch
Located in Stockholm, SE
This late victorian enchanting piece, delicately created in 18k gold, takes the form of a gracefully curved crescent moon, exuding timeless elegance and celestial charm. Adorning th...
Category

Late 19th Century Late Victorian Antique Diamond Jewelry

Materials

Diamond, 18k Gold

Victorian 18 Karat Royal Blue Sapphire and Diamond Three Stone Cluster Ring
Located in Fairfield, CT
This Victorian-era ring, crafted around the 1880s, is an exquisite example of the period's intricate and opulent designs. The ring features a central royal blue sapphire flanked by t...
Category

1880s Victorian Antique Diamond Jewelry

Materials

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

Victorian Pearl, Diamond and Enamel Mourning Locket Ring
Located in London, GB
This is a wonderfully hand made yellow gold Victorian mourning ring. The ring is set with a central rose cut diamond in a cut collet setting and is surrounded by four original natura...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Pearl, Gold, Yellow Gold, Enamel

Victorian Diamond Emerald and Ruby Double Heart Locket Ring
Located in London, GB
Here we have a charming Victorian heart ring. The head of the ring is formed of two hearts which are set with diamonds, a ruby and an emerald. The head opens to reveal a locket of ha...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Emerald, Ruby, Gold

Victorian Pearl and Diamond 'In Memory of' Mourning Ring
Located in London, GB
This is an exquisite mourning ring from the mid Victorian era. The ring plays host to a central natural pearl surrounded by 6 rose cut diamonds. The ring has been very well preserved...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Pearl, Enamel

Victorian Old Cut Diamond Double Heart Ring
Located in London, GB
This is a lovely antique double heart ring dating back to the Victorian era. The ring features two open interlocking hearts which have been s...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Silver

Victorian Three Stone Emerald and Diamond 10 Karat Rose Gold Antique Ring
Located in Fairfield, CT
This 10 karat rose gold Victorian ring features a timeless three-stone design with an a diamond center in between two emeralds, a popular configuration during the Victorian era. The ...
Category

Late 19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Emerald, Gold, 10k Gold, Rose Gold

Georgian Ruby and Diamond Ring
Located in London, GB
This is a wonderful 15ct yellow gold Georgian ring. The ring features a central rich red ruby with a bright white old cut diamond on each shoulder. The gemstones sit in closed back s...
Category

1830s Georgian Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold, Yellow Gold

Antique Victorian 14K Gold Cufflinks with Rose Cut Diamond - c.1890
Located in London, GB
We are delighted to offer this exceptionally stylish pair of Victorian 14ct gold & diamond cufflinks, made circa 1890. The pair features a wonderful antique gold tone colour that d...
Category

Late 19th Century Antique Diamond Jewelry

Materials

Diamond, 14k Gold

Victorian Five Stone Ruby and Diamond Ring
Located in London, GB
Here we have a 18ct yellow gold Victorian five stone ring. The piece showcases five round faceted gemstones in a single line formation including a trio of pink natural rubies and a d...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Ruby, Gold, Yellow Gold

Chain with solitair pendant set with diamond 14k pink gold
Located in The Hague, ZH
14k rose gold necklace with a solitaire pendant set with rose cut diamonds. 1.00ct – K/L – SI – 45 cm long detailed description: the necklace is 45 cm long and 0.7 mm wide the pen...
Category

1880s French Early Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, 14k Gold

Antique 4.00 ct old mine cut diamond Giardinetto brooch pendant with Guilloche
Located in Magdeburg, DE
This brooch was made in France or Germany around 1850 and is in very good, antique condition. The diamonds are all set in silver with open backs. - One large old mine cut diamond,...
Category

Mid-19th Century French Georgian Antique Diamond Jewelry

Materials

Diamond, Silver

Victorian Old Cut Diamond Clover Ring
Located in London, GB
Here we have a charming Victorian clover ring. This piece is platinum set with a trio of round faceted old cut diamonds collectively forming the clover motif. This delightful piece ...
Category

19th Century Victorian Antique Diamond Jewelry

Materials

Diamond, Gold, Yellow Gold, Platinum

Shop Antique and Vintage Diamond Rings, Diamond Necklaces and Other Diamond Jewelry and Watches on 1stDibs

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.  

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