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4 Carat Old Mine Cut Diamond

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GIA Certified 4 Carat Old Mine Cut Diamond Halo Ring
GIA Certified 4 Carat Old Mine Cut Diamond Halo Ring

GIA Certified 4 Carat Old Mine Cut Diamond Halo Ring

Located in Chicago, IL

GIA graded Old Mine cut diamond at its center. The centerpiece diamond weighs 3.33 carats, graded K

Category

Vintage 1940s American Art Deco Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certifed 4 Carat Old Mine Cut  Engagement Platinum Ring E VS2
GIA Certifed 4 Carat Old Mine Cut  Engagement Platinum Ring E VS2

GIA Certifed 4 Carat Old Mine Cut Engagement Platinum Ring E VS2

Located in Chicago, IL

4 Carat GIA-Certified Old Mine Cut Diamond Ring A 4 carat old mine cut diamond, especially one

Category

2010s American Engagement Rings

Materials

Diamond, Platinum

.75 Carat Diamond Sapphire Platinum Wedding Engagement Ring Art Deco Antique
.75 Carat Diamond Sapphire Platinum Wedding Engagement Ring Art Deco Antique

.75 Carat Diamond Sapphire Platinum Wedding Engagement Ring Art Deco Antique

Located in New York, NY

3/4 Carat Old Mine Cut Diamond of superb white color and fire! The diamond is G-H color. On either

Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

old mine cut Diamond Bracelet
old mine cut Diamond Bracelet

old mine cut Diamond Bracelet

$160,000Sale Price|20% Off

old mine cut Diamond Bracelet

By MOGULDIAM INC

Located in New York, NY

cut diamonds ranges from 1 carat - 1.50 carat with I - L color and VVS2 - I 1 clarity, measured 6 1/2

Category

2010s American Link Bracelets

Materials

Diamond, 18k Gold

Antique Victorian 0.70 Carat Old Mine Cut Diamond Engagement Ring
Antique Victorian 0.70 Carat Old Mine Cut Diamond Engagement Ring

Antique Victorian 0.70 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum and 18k yellow gold with an Old Mine cut Diamond weighing approximately

Category

Antique Late 19th Century Victorian Engagement Rings

Materials

Diamond, 18k Gold, Platinum

3.19ct Old Mine Cut Diamond Engagement Ring
3.19ct Old Mine Cut Diamond Engagement Ring

3.19ct Old Mine Cut Diamond Engagement Ring

By Mark Broumand

Located in Los Angeles, CA

This exquisite platinum engagement ring features a captivating old mine cut diamond at its center

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Antique Edwardian 1910s 3.20 Carat Old Mine Cut Diamonds Ring
Antique Edwardian 1910s 3.20 Carat Old Mine Cut Diamonds Ring

Antique Edwardian 1910s 3.20 Carat Old Mine Cut Diamonds Ring

Located in New York, NY

approximately 1.90 carats, accented by 6 smaller Old Mine cut Diamonds weighing a total of approximately 1.30

Category

Vintage 1910s Edwardian Band Rings

Materials

Diamond, Platinum

1.70ct Old Mine Cut Diamond Engagement Ring
1.70ct Old Mine Cut Diamond Engagement Ring

1.70ct Old Mine Cut Diamond Engagement Ring

By Mark Broumand

Located in Los Angeles, CA

mine cut diamond at its center. The diamond is GIA certified at E-SI1, presenting a colorless and

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Antique Edwardian 1910s 3.00 Carat Old Mine Cut Diamond Engagement Ring
Antique Edwardian 1910s 3.00 Carat Old Mine Cut Diamond Engagement Ring

Antique Edwardian 1910s 3.00 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with a GIA certified Old Mine cut center Diamond weighing 3.00 carats, D

Category

Vintage 1910s Edwardian Engagement Rings

Materials

Diamond, Platinum

Antique Victorian 1.20 Carat Old Mine Cut Diamond Engagement Ring
Antique Victorian 1.20 Carat Old Mine Cut Diamond Engagement Ring

Antique Victorian 1.20 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in 14k yellow gold and platinum with an Old Mine cut Diamond weighing approximately

Category

Antique Late 19th Century Victorian Engagement Rings

Materials

Diamond, 14k Gold, Platinum

Antique Edwardian 1910s 2.37 Carat Old Mine Cut Diamond Engagement Ring
Antique Edwardian 1910s 2.37 Carat Old Mine Cut Diamond Engagement Ring

Antique Edwardian 1910s 2.37 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in 18K white gold with a GIA certified Old Mine cut Diamond weighing 2.37 carat, I

Category

Vintage 1910s Edwardian Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

Vintage 1940s 2.40 Carat Old Mine Cut Diamond & Lapis Lazuli Ring
Vintage 1940s 2.40 Carat Old Mine Cut Diamond & Lapis Lazuli Ring

Vintage 1940s 2.40 Carat Old Mine Cut Diamond & Lapis Lazuli Ring

Located in New York, NY

Finely crafted in 18k yellow gold with an Old European cut Diamond weighing approximately 2.40

Category

Vintage 1940s Cocktail Rings

Materials

Diamond, Lapis Lazuli, 18k Gold

Antique Art Deco 1920s 2.20 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1920s 2.20 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1920s 2.20 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with an Old Mine cut Diamond weighing approximately 2.20 carats, H color

Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Art Deco 1930s 1.56 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1930s 1.56 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1930s 1.56 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with a GIA certified Old Mine cut Diamond weighing 1.56 carats, I color

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Art Deco 1930s 1.03 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1930s 1.03 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1930s 1.03 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with a GIA certified Old Mine cut Diamond weighing 1.03 carats, F color

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Art Deco 1930s 1.47 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1930s 1.47 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1930s 1.47 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with an Old Mine cut center Diamond weighing 1.47 carat, J color, VS

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat
Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat

Located in Greensboro, NC

its strength and enduring beauty. The center of the ring showcases an Old Mine Cut diamond solitaire

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Art Deco 1930s 4.01 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1930s 4.01 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1930s 4.01 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with a GIA certified Old Mine cut Diamond weighing 4.01 carats, L color

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Old Mine Cut Diamond Russian Gold Brooch
Antique Old Mine Cut Diamond Russian Gold Brooch

Antique Old Mine Cut Diamond Russian Gold Brooch

Located in Cairo, EG

Antique Russian old mine cut diamond brooch with an estimate diamond weight of 2.5 carats H color

Category

Antique 1880s Brooches

Materials

Diamond, 14k Gold

Antique Art Deco 1930s 1.67 Carat Old Mine Cut Diamond Engagement Ring
Antique Art Deco 1930s 1.67 Carat Old Mine Cut Diamond Engagement Ring

Antique Art Deco 1930s 1.67 Carat Old Mine Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum over 14K yellow gold with an Old Mine cut Diamond weighing 1.67 carats

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, 14k Gold, Platinum

Vintage 1960s 1.50 Carat Old Mine Cut Diamond Three-Stone X ring
Vintage 1960s 1.50 Carat Old Mine Cut Diamond Three-Stone X ring

Vintage 1960s 1.50 Carat Old Mine Cut Diamond Three-Stone X ring

Located in New York, NY

Finely crafted in 18k yellow gold and platinum with 3 Old Mine cut Diamonds weighing approximately

Category

Vintage 1960s Band Rings

Materials

Diamond, 18k Gold

Victorian Old Mine Cut Diamond and 18 Carat Gold Cluster Ring
Victorian Old Mine Cut Diamond and 18 Carat Gold Cluster Ring

Victorian Old Mine Cut Diamond and 18 Carat Gold Cluster Ring

Located in Chipping Campden, GB

This stunning cluster ring holds old mine cut diamonds set within the platinum setting. The central

Category

Antique 1880s British Victorian Cluster Rings

Materials

Diamond, Gold

Certified Authentic Vintage Art Deco 1.92 Carat Old Mine Cut Diamond Ring
Certified Authentic Vintage Art Deco 1.92 Carat Old Mine Cut Diamond Ring

Certified Authentic Vintage Art Deco 1.92 Carat Old Mine Cut Diamond Ring

Located in Chicago, IL

cut weighing over 4 carats! The dazzling center is accented by four additional glittering diamonds in

Category

2010s Italian Art Deco Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

Art Deco Old Mine Cut Diamond and 15 Carat Gold Solitaire Band
Art Deco Old Mine Cut Diamond and 15 Carat Gold Solitaire Band

Art Deco Old Mine Cut Diamond and 15 Carat Gold Solitaire Band

Located in Chipping Campden, GB

This Old Mine cut diamond solitaire is simply stunning. The old mine cut diamond measures approx

Category

Vintage 1910s British Art Deco Solitaire Rings

Materials

Diamond, Gold

Edwardian Platinum Old Mine Cut Diamond Horse Shoe Necklace
Edwardian Platinum Old Mine Cut Diamond Horse Shoe Necklace

Edwardian Platinum Old Mine Cut Diamond Horse Shoe Necklace

Located in Venice, CA

. There is approximately 1.75 carats of diamonds by formula. The fact that they are all Old Mine Cuts

Category

Vintage 1910s Unknown Edwardian Pendant Necklaces

Materials

Diamond, Platinum

Georgian Era Old Mine Cut Brown Diamond & Sapphire Necklace
Georgian Era Old Mine Cut Brown Diamond & Sapphire Necklace

Georgian Era Old Mine Cut Brown Diamond & Sapphire Necklace

Located in Montgomery, AL

We are loving the earthy tones of this vintage beauty! The beauty old mine cut diamond is accent

Category

Antique 19th Century Georgian Pendant Necklaces

Materials

Diamond, Brown Diamond, Sapphire, Gold, Silver

Antique 14k Gold Russian Old Mine Cut Diamond Earrings
Antique 14k Gold Russian Old Mine Cut Diamond Earrings

Antique 14k Gold Russian Old Mine Cut Diamond Earrings

Located in Firenze, FI

Antique earring in floral shape with old mine cut diamonds centered with 1 larger old mine diamond

Category

Mid-20th Century Russian Art Deco Clip-on Earrings

Materials

Diamond, 14k Gold

1.36 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring
1.36 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring

1.36 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring

Located in New York, NY

accentuated by dazzling baguette cut diamond accents. The ring is size 5 1/4, and can be resized. Inventory

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

2.03 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring
2.03 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring

2.03 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring

Located in New York, NY

This elegant platinum ring centers a sparkling EGL certified old mine brilliant cut diamond that

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Art Deco Old Mine Cut Diamond Platinum Tulip Vintage Engagement Ring
Art Deco Old Mine Cut Diamond Platinum Tulip Vintage Engagement Ring

Art Deco Old Mine Cut Diamond Platinum Tulip Vintage Engagement Ring

Located in Philadelphia, PA

Centering an old mine cut diamond weighing approximately 0.30 carat - H color with SI2 clarity

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Old Mine Cut Diamond and Emerald Ring, circa 1920
Antique Old Mine Cut Diamond and Emerald Ring, circa 1920

Antique Old Mine Cut Diamond and Emerald Ring, circa 1920

Located in London, GB

Old mine diamond and emerald ring. Set with one central cushion shape old mine diamond in an open

Category

Vintage 1920s Unknown Edwardian Cluster Rings

Materials

Diamond, Emerald, Platinum

Rubellite Old Mine Cut Diamond Ring
Rubellite Old Mine Cut Diamond Ring

Rubellite Old Mine Cut Diamond Ring

Located in Bay Harbor Islands, FL

The ring features an oval rubellite surrounded by 8 old miner cut diamonds weighing approximately 2

Category

Antique Late 19th Century Victorian More Rings

Materials

Diamond, Rubelite, 14k Gold, Platinum

Old Mine Cut Diamond 1.20 Carat Solitare Gold Ring
Old Mine Cut Diamond 1.20 Carat Solitare Gold Ring

Old Mine Cut Diamond 1.20 Carat Solitare Gold Ring

Located in Cairo, EG

estimate diamond weight 1.20 carats H color vs clearity decorted with 4 old mine cut diamonds on ring sides

Category

Vintage 1940s Solitaire Rings

Vintage Amethyst & Old Mine Cut Diamond Illusion Set Cocktail Ring
Vintage Amethyst & Old Mine Cut Diamond Illusion Set Cocktail Ring

Vintage Amethyst & Old Mine Cut Diamond Illusion Set Cocktail Ring

Located in Montgomery, AL

gemstones 1 - 16mm X 12.1mm Step Cut Amethyst Gemstone 1 - 5.1mm Old Mine Cut Diamond; JK Color; Si2 Clarity

Category

Vintage 1920s Art Deco Cocktail Rings

Materials

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

Victorian Engagement Ring 14k Gold Silver Old Mine Cut Diamond
Victorian Engagement Ring 14k Gold Silver Old Mine Cut Diamond

Victorian Engagement Ring 14k Gold Silver Old Mine Cut Diamond

Located in Beverly Hills, CA

A Victorian-era engagement ring featuring a remarkable 1.75-carat old mine cut diamond. The cushion

Category

Early 20th Century Victorian Engagement Rings

Materials

Diamond, Yellow Gold, Silver, 14k Gold

Art Deco Diamond Lapis Lazuli Pendant Old Mine Cut Diamonds Gold
Art Deco Diamond Lapis Lazuli Pendant Old Mine Cut Diamonds Gold

Art Deco Diamond Lapis Lazuli Pendant Old Mine Cut Diamonds Gold

Located in New York, NY

sphere set with 12 absolutely radiant Old Mine Cut Diamonds totaling approximately 1.2 Carat. The

Category

Early 20th Century Unknown Art Deco Pendant Necklaces

Materials

Diamond, Lapis Lazuli, 10k Gold, Gold

Mid-Century 1.63 CTW Old Mine Cut Diamond Platinum Engagement Ring GIA
Mid-Century 1.63 CTW Old Mine Cut Diamond Platinum Engagement Ring GIA

Mid-Century 1.63 CTW Old Mine Cut Diamond Platinum Engagement Ring GIA

Located in Philadelphia, PA

Centering an old mine cut diamond weighing 1.25 carats - J color with SI2 clarity Set by tri-split

Category

Vintage 1940s Modern Engagement Rings

Materials

Diamond, Platinum

Circa 1920s Art Deco Platinum 1.50cttw Old Mine Cut Cluster Diamond Ring
Circa 1920s Art Deco Platinum 1.50cttw Old Mine Cut Cluster Diamond Ring

Circa 1920s Art Deco Platinum 1.50cttw Old Mine Cut Cluster Diamond Ring

Located in Hicksville, NY

grams Diamond Details: Center Diamond: .50ct, Old Mine Brilliant, Fancy Brown, VS Clarity, Natural

Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

4 Carat Opal Old Mine Cut Diamond Ring 14 Karat Gold Cocktail Art Deco Victorian
4 Carat Opal Old Mine Cut Diamond Ring 14 Karat Gold Cocktail Art Deco Victorian

4 Carat Opal Old Mine Cut Diamond Ring 14 Karat Gold Cocktail Art Deco Victorian

Located in New York, NY

This is one of the most beautiful Antique Victorian to Art Deco 4 Carat Opal and Old Mine Cut

Category

Early 20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Opal, Gold, 14k Gold, Yellow Gold

1.61ct. Old Mine Cut Diamond Platinum Engagement Ring
1.61ct. Old Mine Cut Diamond Platinum Engagement Ring

1.61ct. Old Mine Cut Diamond Platinum Engagement Ring

Located in New York, NY

This amazing platinum engagement ring from the 1920s, centers a sparkling GIA certified old mine

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

PANIM Three Piece Old Mine Cut Diamond 18k White Gold Ring
PANIM Three Piece Old Mine Cut Diamond 18k White Gold Ring

PANIM Three Piece Old Mine Cut Diamond 18k White Gold Ring

By PANIM

Located in Tsim Sha Tsui, Hong Kong

total carat weight of 1.11cts. These sparkling old cut diamonds are mounted in a 4 claw setting

Category

21st Century and Contemporary Indian Modern Three-Stone Rings

Materials

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

Art Deco 1.24 Carat GIA Cert Old Mine Cut Diamond Platinum  Ring
Art Deco 1.24 Carat GIA Cert Old Mine Cut Diamond Platinum  Ring

Art Deco 1.24 Carat GIA Cert Old Mine Cut Diamond Platinum Ring

Located in New York, NY

accentuated by dazzling old mine cut diamonds that weigh approximately 1.40ct. The color of these diamonds is

Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1900 Victorian 18k Gold over Silver Old Mine Cut Diamond Earrings
1900 Victorian 18k Gold over Silver Old Mine Cut Diamond Earrings

1900 Victorian 18k Gold over Silver Old Mine Cut Diamond Earrings

Located in Lexington, KY

diamonds. At the center of the star sits a glorious 1-carat old mine-cut diamond that is truly the center

Category

Antique Early 1900s Late Victorian Dangle Earrings

Materials

Diamond, 18k Gold, White Gold, Silver

Retro 0.64 CTW Old Mine Cut Diamond 14 Karat Vintage Engagement Ring
Retro 0.64 CTW Old Mine Cut Diamond 14 Karat Vintage Engagement Ring

Retro 0.64 CTW Old Mine Cut Diamond 14 Karat Vintage Engagement Ring

Located in Philadelphia, PA

Centering an old European cut diamond weighing 0.64 carat total - J color and SI1 clarity Bead set

Category

Vintage 1940s Engagement Rings

Materials

White Diamond, Gold, 14k Gold, White Gold

1.45 Carat GIA Certified Old Mine Cut Diamond Platinum Halo Engagement Ring
1.45 Carat GIA Certified Old Mine Cut Diamond Platinum Halo Engagement Ring

1.45 Carat GIA Certified Old Mine Cut Diamond Platinum Halo Engagement Ring

Located in New York, NY

is accentuated by dazzling old mine cut diamonds that weigh approximately 0.30ct. graded H color with

Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

Mid-Century 9kt Gold Turquoise and Old Mine-Cut Diamond Flower Brooch
Mid-Century 9kt Gold Turquoise and Old Mine-Cut Diamond Flower Brooch

Mid-Century 9kt Gold Turquoise and Old Mine-Cut Diamond Flower Brooch

Located in Braintree, GB

, approximately 7 mm diameter Diamonds: 11 old mine-cut diamonds, total approx. 1.10 carats Colour: F–G Clarity

Category

Mid-20th Century European Brooches

Materials

Diamond, Turquoise, Gold, 9k Gold

Antique Inspired 1.93 Carat Old Mine Diamond 18K Rose Gold Earrings
Antique Inspired 1.93 Carat Old Mine Diamond 18K Rose Gold Earrings

Antique Inspired 1.93 Carat Old Mine Diamond 18K Rose Gold Earrings

Located in Beverly Hills, CA

Center Stone: 4 Diamonds Cut: Old Mine Cut Weight: 1.93 Carat Color: M-N Clarity: SI Metal: 18K

Category

20th Century Drop Earrings

Materials

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

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4 Carat Old Mine Cut Diamond For Sale on 1stDibs

You are likely to find exactly the 4 carat old mine cut diamond you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and 18k Gold. Our collection of these items for sale includes 439 vintage editions and 170 modern creations to choose from as well. If you’re looking for a 4 carat old mine cut diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Finding an appealing 4 carat old mine cut diamond — no matter the origin — is easy, but Mark Broumand, Single Stone and Hancocks each produced a popular version that is worth a look. Today, if you’re looking for an old mine cut version of this piece and are unable to find the perfect match, our selection also includes cushion cut and round cut alternatives. There aren’t many items for men if you’re seeking a 4 carat old mine cut diamond, as most of the options available are for women and unisex.

How Much is a 4 Carat Old Mine Cut Diamond?

The price for a 4 carat old mine cut diamond starts at $590 and tops out at $495,000 with these rings, on average, selling for $9,591.

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 4 Carat Old Mine Cut Diamond
  • 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.