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Art Nouveau 2.65 Ct Diamond 18KT Gold Platinum Brooch Pendant
Located in Napoli, IT
old mine cut diamond of approx .60 Ct (G/VVS) – 3 old mine cut diamonds totalling approx 1.25 Ct (G/H
Category

Antique Late 19th Century European Art Nouveau Brooches

Materials

Diamond, Gold, 18k Gold, Platinum

Victorian Diamond Starburst Pendant/Brooch Set in 14 Karat Gold
Located in Miami, FL
starburst Brooch/pendant set in 14 katat yellow gold. The piece is set with old mine cut diamonds with an
Category

Antique 1890s Unknown Victorian Brooches

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Victorian Diamond Natural Pearl Royal Blue 18 KT Heart Brooch/Pendant
Located in Napoli, IT
. (average) – 6 old mine cut diamonds totalling approx .40 Ct (G-VS/SI) Measures: 25 mm. x 25 mm. (h. x w
Category

Antique 1890s British Victorian Brooches

Materials

Diamond, Natural Pearl

Antique 10.00 Oval Cut Blue Sapphire Round Diamond Horseshoe Brooch Pendant
Located in New York, NY
10.00 carats total. Accented by graduating old mine cut diamonds weighing 3.00 carats total. This brooch
Category

20th Century Brooches

Materials

Diamond, Sapphire

Victorian Diamond Enamel 18 Karat Gold Floral Antique Locket Pendant Necklace
Located in Philadelphia, PA
a dimensional floral motif appliqué centering an old mine cut diamond Belcher set and weighing
Category

Antique 1870s Link Necklaces

Materials

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

Antique Victorian 15K Gold Silver 2.39ctw Diamond Crescent Brooch or Pendant
Located in Staines-Upon-Thames, GB
An antique diamond, silver, and rose gold pendant or brooch, comprising sixty old mine and rose cut
Category

Antique Late 19th Century Victorian Brooches

Materials

Diamond, 15k Gold, Rose Gold, Silver

Antique Victorian 18 Karat Yellow Gold Diamond Convertible Brooch or Pendant
Located in Great Neck, NY
'em like this anymore! Metal: 18K Yellow Gold Diamonds: Approximately 2.50cts Old Mine Cut Diamonds
Category

Antique Mid-18th Century Victorian Brooches

Materials

Diamond, 18k Gold, Yellow Gold

.10 Carat Diamond Yellow Gold Ford Model T Locket Pendant
Located in Stamford, CT
round cut diamond. 1 old mine cut diamond, H VS approx. .10cts 14k yellow gold Stamped: 14k 5.4 grams
Category

Early 20th Century Necklace Enhancers

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Georgian Ruby, Emerald, Diamond and Gold Cannetille Brooch-Pendant, Circa 1830
Located in London, GB
by a cluster of eight, old mine-cut diamonds, with six, oval faceted rubies and six square emeralds
Category

Antique Early 19th Century English Georgian Brooches

Materials

Diamond, Emerald, Ruby, Gold

Edwardian Pink Topaz Pearl and Diamond Drop Brooch Pendant
Located in London, GB
old European cut diamonds of differing sizes. These scintillating stones accentuate the focal trio
Category

Early 20th Century Edwardian Brooches

Materials

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

Art Nouveau 18K Yellow Gold Plique a Jour Enamel and Diamond Dragon Pendant
Located in Addison, TX
gold Set with 1 old mine cut diamond in the dragons mouth, .15 carat Weighing 9.5g Ships in a jewelry
Category

Vintage 1910s Art Nouveau More Jewelry

Materials

Diamond, Yellow Gold, Enamel

Victorian 14k Sterling Silver Diamonds Natural Pearls Enamel Pin/Pendant
Located in Narberth, PA
natural white pearls and additional rose cut diamond accents. The brooch has a polished surface with
Category

Antique 1880s Victorian Brooches

Materials

Diamond, Pearl, 14k Gold, Sterling Silver, Enamel

Late Victorian Antique Diamond and Demantoid Garnet Frog Brooch/Pendant Ca.1890
Located in London, GB
in silver on gold with gold feet and pavé set throughout with bright and lively old cut diamonds, the
Category

Antique Late 19th Century English Brooches

Materials

Diamond, Garnet, 18k Gold, Silver

Antique Circa 1920s Art Deco 18k Gold Natural Diamond And Pearl Brooch Pendant
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 10.4 grams. Totally is old cut diamond 0.30 ct. The diamond
Category

Vintage 1920s European Art Deco Brooches

Materials

Diamond, Pearl, 18k Gold

1920 Edwardian 14k Yellow Gold Diamond and Seed Pearl Starburst Pin / Pendant
Located in Lexington, KY
collection of seed pearls and an Old Mine Cut diamond at the center. This lovely Edwardian pin has a
Category

Vintage 1920s Edwardian Brooches

Materials

Diamond, Pearl, 14k Gold, Yellow Gold

Antique Victorian 15 Gold Silver 2.46tgw Amethyst and Diamond Brooch Pendant
Located in Staines-Upon-Thames, GB
cut amethyst, and thirty-three old cut diamonds, in silver, 15 karat yellow gold and 10 karat yellow
Category

Antique Late 19th Century British Victorian Brooches

Materials

Amethyst, Diamond, Gold, 10k Gold, 15k Gold, Silver

Antique Art Nouveau 10k Yellow Gold Diamond Enamel Flower Pin Brooch Pendant
Located in Montclair, NJ
–Stone(s)– (2) Natural Genuine Diamond - Old Mine Cut - Prong Set - G Color - VS2 Clarity - 0.04ctw
Category

21st Century and Contemporary Art Nouveau Brooches

Materials

Diamond, Gold, 10k Gold, Yellow Gold, Enamel

Antique Designer Frank Gardner Hale 14k Diamond Turquoise Pearl Brooch Pendant
Located in Birmingham, AL
Gardner Hale. It is made in 14 k yellow Gold and features 23 Old Mine Cut Diamonds with an estimated Carat
Category

20th Century American Arts and Crafts Brooches

Materials

Diamond, Pearl, Turquoise, 14k Gold

Type A Jadeite Jade Drop Earrings / Pendants Rubies OMC Diamond and Sapphires
Located in Hong Kong, HK
) made with blue sapphires, rubies and old mine cut and old rose cut diamonds. 2 Blue sapphires 0.81Cts
Category

2010s Hong Kong Drop Earrings

Materials

Diamond, Jade, Ruby, Sapphire, Blue Sapphire, 18k Gold, Rose Gold, White...

14K White Gold Diamond Lace Spray Pin Pendant
Located in Queens, NY
repair. 1 7/8" x 1 1/4" approx.; depth: 7.0mm approx.; 45 diamonds old European, old mine, single cut
Category

Early 20th Century Art Deco Brooches

Materials

Diamond, 14k Gold, White Gold

14K Yellow Gold Emerald and Diamond Starburst Brooch Pendant
Located in Great Neck Plaza, NY
and 10 old mine-cut diamonds weighing an estimated 0.30 carats. The dimensional arrangement and rich
Category

Vintage 1950s Brooches

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

GIA Ruby NO HEAT Sapphire Diamond Antique Platinum Earrings 18K Mine 7.78 Carats
Located in Sylvania, GA
Earth-mined Sapphires--Approx. .88 Carats 20 Sparkling Old European & Mine Cut Antique Diamonds are VS
Category

Antique 19th Century Victorian Chandelier Earrings

Materials

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

Dalben Aquamarine Diamond Gold Pendant Necklace
By Oreste Dalben
Located in Como, IT
Aquamarine weighting 17,23 carat ,one old mine Cushion cut diamond weighting 0,39 ct. and 17 rose cut
Category

21st Century and Contemporary Italian Contemporary Drop Necklaces

Materials

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

Moonstone diamond brooch/pendant, circa 1880
Located in London, GB
shape old mine diamonds in open back cut-down settings with an approximate combined weight of 2.70
Category

Antique 1880s Victorian Brooches

Materials

Diamond, Moonstone, Gold, Silver

Victorian Diamond Silver Front Gold Backed Oval Brooch or Pendant
Located in Venice, CA
This Victorian-era brooch contains three Old Mine cut diamonds, surrounded by 24 smaller rose and
Category

Antique Late 19th Century Unknown Victorian Brooches

Materials

Diamond, Gold, Silver, 14k Gold

Art Deco Diamond Platinum Pin/Pendant
Located in New York, NY
accentuated by dazzling old mine cut diamonds that weigh approximately 2.70ct. graded H-I color with VS
Category

Early 20th Century Art Deco Brooches

Materials

Diamond, Platinum

Edwardian Amethyst and Diamond Drop Pendant
Located in London, GB
cabochon cut amethyst, showcasing a deep purple hue. Surrounding the focal amethyst is a frame of old mine
Category

Antique Early 1900s Edwardian Brooches

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold, Platinum

Antique Spinel Diamond Silver Gold Pendant
Located in New York, NY
, centering an old mine spinel weighing approximately 8cts, embellished by rose cut diamonds. Epoque: mid 19th
Category

Antique Late 19th Century Victorian More Objets d Art and Vertu

Materials

Spinel, White Diamond, 18k Gold, Silver

Antique 19th Century Victorian Yellow Gold Brooch Pendant Pearls and Diamonds
Located in New York, NY
old mine cut diamonds (F-G-H color, SI clarity) Width is 1 inch and length is 1.5 inches Brooch can be
Category

Antique Mid-18th Century English Victorian Brooches

Materials

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

Antique Green Jade Old European Diamond Platinum Floral Marquise Large Brooc
Located in Miami, FL
The Antique Old-mine Cut Diamond and Apple Green Jade with Platinum Floral Marquise Large Brooch
Category

Early 20th Century Art Deco Brooches

Materials

Diamond, Jade, Platinum

Antique Art Nouveau Diamond Gold Locket Pendant
Located in Chicago, IL
stylized “berries” in Art Nouveau taste. The “berries” are set with three old mine and numerous rose cut
Category

Early 20th Century Russian Art Nouveau Drop Necklaces

Materials

Diamond

Colombian emerald and diamond pendant, circa 1910.
Located in London, GB
Colombian emerald and diamond pendant. Set to centre with a rectangular step-cut natural Colombian
Category

Early 20th Century Edwardian Drop Necklaces

Materials

Diamond, Emerald, Yellow Gold, Platinum

Vintage Finish Set Earrings Pendant Sapphire Diamonds 18K Gold / 2.23gr
Located in SE
. WEIGHT OF THE STONES The cuts of the stones that you may see on many of the older jewelry items are
Category

Vintage 1980s Finnish Retro Dangle Earrings

Materials

Diamond, Sapphire, 18k Gold

Art Deco Platinum Diamonds Brooch Onyx Pendant Diamonds White Gold, 1910
Located in Herzelia, Tel Aviv
onyx Accents: Old-mine cut and rose-cut diamonds (Color G–J) Design: Buckle-inspired, architectural
Category

Vintage 1910s Art Deco Brooches

Materials

Diamond, Onyx, White Gold, Platinum

Georgian Diamond Brooch, circa 1770
Located in London, GB
Georgian diamond brooch/pendant. Centrally set with one cushion shape old mine diamond in a closed
Category

Antique 1770s Unknown Georgian Brooches

Materials

Diamond, Rose Gold, Silver

Victorian Carved Agate and 0.40ctw Diamond Shell Pendant
Located in Narberth, PA
polished into a shell. A single Old Mine Cushion Cut diamond weighing approximately 0.40ctw represents a
Category

Antique 1880s Unknown Victorian Necklace Enhancers

Materials

Agate, 14k Gold, Yellow Gold

Antique Rose Cut Diamond Gold Earrings
Located in Cairo, EG
centered with pear shape rose cut diamond flanked with several old mine cut diamonds white color excellent
Category

Antique Early 1900s Victorian Dangle Earrings

Antique Victorian 14k Gold Large Heart Amethyst Diamond Enamel Brooch Pendant
Located in Montclair, NJ
that is surrounded by 17 old mine cut diamonds throughout. These large old cut diamonds total
Category

Antique 1890s Victorian Brooches

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold, Enamel

Antique Victorian Diamond, Silver and Gold Flower Necklace, Circa 1890
Located in London, GB
A Victorian diamond, silver and gold flower necklace, featuring an old-cut diamond and cut down set
Category

Antique 1890s English Victorian Drop Necklaces

Materials

Diamond, Gold, Silver

Victorian Diamond and Silver Upon Gold Pinwheel Cluster Brooch, Circa 1890
Located in London, GB
A Victorian diamond pinwheel cluster brooch, with a central cluster of old-cut diamonds, in cut
Category

Antique 1890s British Victorian Brooches

Materials

Diamond, Gold, Silver

Victorian Enamel Non Heated Sapphire Diamond 18k YG Earrings Pendant- Brooch Set
Located in New York, NY
carats in the brooch and 5 carats in the earrings and accented with sparkling mine-cut diamonds - an
Category

Early 20th Century French More Jewelry

Materials

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

Antique Art Nouveau 14k Yellow Gold Operable Blue Enamel Top Elk Tooth Pendant
Located in Montclair, NJ
–Stone(s)– (1) Natural Genuine Elk Tooth (1) Natural Genuine Diamonds - Old Mine Cut - Pave Set
Category

21st Century and Contemporary Art Nouveau Charm Bracelets

Materials

Diamond, Gold, 14k Gold, Yellow Gold, Enamel

Important Colombian Emerald Red Spinel Diamond Ear Pendants
By Eleuteri
Located in New York, NY
century (31 cts and 25 cts), spinels (13 cts total) and old mine cut diamonds. Mounted on 18kt white gold
Category

2010s Italian Drop Earrings

Materials

White Diamond, Emerald, Spinel, 18k Gold

Victorian Diamond Fly Locket Bracelet
Located in London, GB
. A striking locket hangs from the bracelet, showcasing an old cut diamond set fly motif sitting atop
Category

Antique 19th Century Victorian Link Bracelets

Materials

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

Antique Belle Époque Platinum Diamond Swag Necklace
Located in New York, NY
diamonds in the necklace, the cuts are rosecut and old mine cut. The largest stone at the center of the
Category

Early 20th Century Unknown Belle Époque More Necklaces

Materials

Diamond, Platinum

Victorian Twelve Rayed Star 4.25 Ct Diamond 18 KT bangle
Located in Napoli, IT
old mine cut Diamonds and rose cut Diamonds to complement- Larger diamond approx .70 Ct – Diamonds
Category

Antique 1880s European Victorian Bangles

Materials

Diamond, 18k Gold

Antique Colombian Emerald Diamond Convertible Bracelet Pendant Russian 1890s
Located in Chicago, IL
cut Colombian emerald of a glowing bluish green color. The emerald is surrounded by chunky old mine
Category

Antique 1890s Russian Victorian Link Bracelets

Materials

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

Victorian Sapphire and Diamond Crescent Brooch
Located in London, GB
period. It is crafted in 18ct yellow gold featuring a single row of claw set old cut diamonds and natural
Category

Antique 19th Century Victorian Brooches

Materials

Diamond, Blue Sapphire, Gold, Yellow Gold

Convertible Pendant Ring In 18Kt Gold With Ctw In Diamonds Sapphires And Coral
Located in Miami, FL
old European rose cut diamonds and 1 round brilliant cut diamond, with a total weight of 0.50 carats
Category

Vintage 1950s Italian Retro Cocktail Rings

Materials

Coral, Diamond, White Diamond, Onyx, Sapphire, Blue Sapphire, Gold, 18k ...

Antique Diamond Day-to-Night Grape Cluster Earrings with Solitaire Tops
Located in New York, NY
A pair of antique Victorian period day-to-night old mine cut diamond earrings with solitaire tops
Category

Antique 1840s Victorian Dangle Earrings

Materials

Diamond, 18k Gold, Sterling Silver

Edwardian 1905 Guilloche Pendant Brooch 18Kt Gold Platinum with 2.56 Ct Diamonds
Located in Miami, FL
diamonds, pearls and white metals like platinum and white gold. Diamonds often had an Old Mine or European
Category

Antique Early 1900s French Edwardian More Jewelry

Materials

Diamond, Gold, 18k Gold, Platinum

Diamond and Silver Upon Gold Antique Style Drop Earrings, 10.38ct
Located in London, GB
A pair of antique style, diamond set, drop-shape earrings, with a cluster at the top and a pendant
Category

Early 2000s American Modern Dangle Earrings

Materials

Diamond, Gold, Silver

1860s Victorian Diamond Lavaliere Necklace Brooch 1.5 Carat
Located in Wallkill, NY
This pendant Flower and Branch design adorned with sparkling Rose Cut diamonds. Old Mine cut
Category

Antique 1860s Victorian Drop Necklaces

Materials

Diamond, Gold, Sterling Silver

Victorian Carved Quartz and Diamond Leaf
Located in Riverdale, NY
quality manufacture with high quality mine cut diamonds which are used as accents with hand carved smokey
Category

Antique 1860s American High Victorian Brooches

Materials

Diamond, Quartz, Topaz, 14k Gold

Antique 7.25 Ctw. Sapphire Diamond Horseshoe Pendant Brooch by Cartier Paris
By Cartier
Located in Los Angeles, CA
combination of Old Mine Cut and Rose Cut diamonds, weighing approximately 2.36 carats in total. The horseshoe
Category

Antique Late 19th Century French Victorian Brooches

Materials

Diamond, Sapphire, 18k Gold, Silver

Antique Diamond and Silver Upon Gold Six Point Star Brooch, With Rays Circa 1890
Located in London, GB
An antique diamond six point star brooch, with rays, with an old-cut diamond, in a cut down setting
Category

Antique 1890s British Late Victorian Brooches

Materials

Diamond, Gold, Silver

Carrington Co. Antique Ruby, Diamond and Pearl Crescent Brooch
By Carrington Co
Located in New York, NY
moon of graduating old mine-cut diamonds edged by cushion-shape rubies, centering a pearl and diamond
Category

Antique Late 19th Century English Victorian Brooches

Materials

Diamond, Pearl, Ruby, 18k Gold

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Old Mine Cut Diamond Pendant For Sale on 1stDibs

You are likely to find exactly the old mine cut diamond pendant you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 14k Gold and 18k Gold — can elevate any look. You can easily find a 67 antique edition and 8 modern creations to choose from as well. Making the right choice when shopping for an old mine cut diamond pendant may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular piece, 1.5 Carat and 2 Carat are consistently popular carat weights. Creating an old mine cut diamond pendant has been a part of the legacy of many jewelers, but those produced by Mark Broumand, Roman Malakov and Single Stone are consistently popular. An old mine cut version of this piece has appeal, but there are also old european cut and square cut versions for sale. If you’re browsing our inventory for an old mine cut diamond pendant, 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 an Old Mine Cut Diamond Pendant?

The price for an old mine cut diamond pendant starts at $550 and tops out at $225,000 with these necklaces, on average, selling for $4,225.

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.  

Questions About Old Mine Cut Diamond Pendant
  • 1stDibs ExpertApril 5, 2022
    Mine cut diamonds are up to 300 years ago. Mine cut diamonds were popular around the 18th century during Victorian times and are still in high demand today. You’ll find a wide selection of mine cut diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    Because the old mine cut is no longer used on diamonds, diamonds with this cut are rare and so you can often get quite a lot of money for them. Nevertheless, it is still dependent on the quality of the individual diamonds and on the color, clarity, cut and carat number.
  • 1stDibs ExpertFebruary 22, 2021
    Old mine cut diamonds are usually worth less than old european cut diamonds. Because they are generally 10-15% less expensive, they are often larger than other cut diamonds for engagement rings.
  • Like any other diamond, an old mine cut diamond's worth depends on a variety of factors. These factors include the 4C's (color, clarity, cut, carat), the overall beauty and "make" of the stone, the demand, supply, etc. On average however, old mine cuts are typically priced slightly lower (around 5-10%) than modern cut diamonds.

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