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Art Deco Sapphire Diamond Platinum Euro Cut Ring
Located in Miami, FL
Original Antique Art Deco 2.00TCW Old European Cut and Sapphire Ring in Platinum Composition
Category

21st Century and Contemporary Fashion Rings

Victorian OMC Diamond Sapphire Gypsy Band
Located in Sale, Cheshire
A cool antique gypsy band set with alternating blue sapphires and old mine cut diamonds. It dates
Category

Antique 19th Century English Late Victorian Cluster Rings

Materials

Diamond, Sapphire, 15k Gold

Antique Ring Platinum Sapphire and Diamonds
Located in Palermo, IT
Antique ring – Platinum and Sapphire Platinum ring with sapphire and old cut diamonds, IGI
Category

Vintage 1950s Italian Retro Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Antique Victorian Sapphire and Diamond Flower Pendant
Located in Sale, Cheshire
A stunning mid Victorian flower pendant set with vibrant blue sapphires and old mine cut diamonds
Category

Antique Mid-19th Century English High Victorian Pendant Necklaces

Materials

Diamond, Sapphire, 15k Gold, Silver

Sapphire Moonstone Gold Starburst Pendant
Located in Chestnut Hill, MA
Old European cut sapphires.
Category

2010s Unknown Revival Necklace Enhancers

Materials

Blue Sapphire, Moonstone, Sapphire

Art Deco Sapphire Diamond Cluster Ring 2ct of Diamond
Located in Kendal, GB
sapphires and old cut diamonds beaming out to the edges (approx. 0.50ct of sapphire, 2ct of diamond total
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Sapphire Diamond Drop Earrings
Located in Stratford upon Avon, GB
A pair of diamond and sapphire drop earrings, featuring old cut diamonds and calibre cut sapphires.
Category

Mid-20th Century Art Deco Drop Earrings

Materials

Blue Sapphire, Diamond, Platinum

Antique, Victorian, 18 Carat Gold, Navette Sapphire and Diamond Cluster Ring
Located in Rochford, Essex
two further vertically set pear-cut sapphires with a boarder of old cut diamonds. The sapphires are a
Category

Antique Late 19th Century British Engagement Rings

Materials

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

Sapphire Diamond Statement Ring c1920
Located in Los Angeles, CA
2.20ct L/SI2 old European cut diamond with 1.10cttw sapphire accents set in a vintage platinum
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Antique Victorian Sapphire and Diamond Five Stone in Ring 15ct Yellow Gold
Located in Yorkshire, West Yorkshire
total Sapphire weight of 0.53ct. There is an Old Cut Diamond seperating each Sapphire weighing
Category

Antique 1880s Unknown Victorian Band Rings

Materials

Diamond, Sapphire, Yellow Gold

Antique certified natural unheated blue sapphire diamond ring
Located in Versailles, FR
the heart of the ring is a breathtaking old cushion-cut blue sapphire that steals the spotlight. The
Category

Antique 19th Century French Victorian Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold

Antique Sapphire and Diamond Ring
Located in Lambertville, NJ
Beautiful antique 18kt. yellow gold band prong set with 3 old cut Ceylon color natural sapphires
Category

Antique Late 19th Century Unknown Victorian Wedding Rings

Materials

Diamond, Sapphire, 18k Gold

Victorian Sapphire Diamond Gold Ring
Located in West Hollywood, CA
Victorian era 18K white gold sapphire & diamond ring. Classic design band with 3 old cut untested
Category

20th Century Victorian Band Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Victorian Sapphire Diamond Chequerboard Ring
Located in Sale, Cheshire
. The sapphires are a striking, vibrant colour, and the diamonds are old European cuts. STONES Natural
Category

Antique 19th Century English Late Victorian Cluster Rings

Materials

White Diamond, Blue Sapphire, 18k Gold

Art Deco 18 Karat White Gold Diamond and Blue Sapphire Daisy Target Ring
Located in Lancashire, Oldham
outer rim is mille-grain set with 26 old cut diamonds. An extremely pretty sapphire & diamond antique
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

1920s Art Deco Platinum, 18k Yellow Gold, Diamond Sapphire Cocktail Marquise Ring
Located in Pamplona, Navarra
platinum setting. Circa 1920. Condition: Good. Old European cut diamonds. Square cut sapphires. Total
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

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

Diamond Cluster Earrings With Center Sapphire
Located in Los Angeles, CA
. The center old cut natural untreated sapphires are "Royal Blue" (GIA). They each weigh 1.75 carats
Category

Antique Late 19th Century Unknown Victorian Lever-Back Earrings

Materials

Sapphire, 18k Gold

Retro Gold Platinum Diamond Sapphire Brooch
Located in Lambertville, NJ
Retro fine 14k tri color gold and platinum brooch with diamonds and sapphires. Old European cut
Category

20th Century Unknown Brooches

Materials

Diamond, Sapphire, Platinum, 18k Gold

Art Deco Style 0.80 Carats Diamonds Sapphires 18 Carat White Gold Ring
By Les Pierres de Julie
Located in Paris, FR
A fine Art Deco style ring in white gold set with a central old cut diamond, small diamonds and
Category

2010s French Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Art Deco Diamond and Sapphire Bracelet
Located in Chestnut Hill, MA
Platinum Art Deco bracelet consisting of approximately 10 carats total weight of old European cut
Category

Early 20th Century Unknown Art Deco Tennis Bracelets

Materials

Diamond, Sapphire, Platinum

18 Karat White Gold Sapphire and Diamond Marquise Navette Engagement Ring
Located in Lancashire, Oldham
-SI2 CUT - Old Mine Cut SAPPHIRE: COLOUR - Deep, purplish blue CARAT WEIGHT - 1.30ct (approx.) CUT
Category

Mid-20th Century British Victorian Cluster Rings

Materials

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

Sapphire Diamond and Gold Ring
Located in Naples, FL
This vintage ring holds 3 old cut round sapphires that are approximately 3.60mm each. There are 4
Category

Early 20th Century Unknown Art Deco Fashion Rings

Materials

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

Antique Belle Epoque Sapphire Diamond Brooch
Located in Edinburgh, GB
calibre cut sapphires, old cut and rose cut diamonds in a milgrain setting. This would also make a
Category

20th Century Unknown Belle Époque Brooches

Materials

Sapphire, Diamond, 15k Gold, Platinum

Late Victorian Ruby Sapphire Diamond Clover Pendant
Located in Edinburgh, GB
An antique 18ct gold pendant, circa 1890, claw set with an old mine cut diamond, ruby and sapphire
Category

Antique Late 19th Century Unknown Late Victorian Drop Necklaces

Materials

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

Art Deco Sapphire Diamond Gold Cufflinks
Located in Lambertville, NJ
14k yellow gold cufflinks set with Old European Cut diamonds and sapphires. The cufflinks measure
Category

Early 20th Century Unknown Art Deco Cufflinks

Materials

Diamond, Sapphire, 14k Gold

Antique LFG certified natural unheated blue sapphire diamond marquise ring
Located in Versailles, FR
. At the heart of the ring is a breathtaking old cushion-cut blue sapphire that steals the spotlight
Category

Antique 19th Century French Victorian Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold

Late Victorian Sapphire Diamond Cluster Ring
Located in Sale, Cheshire
set with principal blue sapphire, flanked on either side by two old cut diamonds in squared settings
Category

Antique Early 1900s English Late Victorian Cluster Rings

Materials

White Diamond, Blue Sapphire, 15k Gold

Art Deco Sapphire Diamond Drop Earrings
Located in New York, NY
Platinum and sapphire and old mine cut diamonds sapphire art deco earrings made for pierced ears
Category

Early 20th Century American Art Deco Drop Earrings

Materials

Diamond, Sapphire, Platinum, 18k Gold

Antique Edwardian Sapphire Diamond Daisy Bracelet
Located in Sale, Cheshire
A simple and refined Edwardian bracelet set with vibrant blue sapphires and old cut diamonds. The
Category

Early 20th Century English Edwardian Link Bracelets

Materials

White Diamond, Blue Sapphire, 15k Gold, Platinum

Art Deco Sapphire and Diamond Engagement Ring
Located in Los Angeles, CA
1.49ct PQ/SI1 old European cut diamond with sapphire accents set in a vintage platinum mounting
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Diamond Sapphire Platinum Ring
Located in Beverly Hills, CA
Sapphires, four old cut Round diamonds and two Triangle cut Sapphires complete each side of the ring. It
Category

Late 20th Century American Art Deco Band Rings

Materials

Diamond, Sapphire, Platinum

19th Century Diamond Sapphire Gold Snake Ring
Located in Saint-Ouen, FR
Antique 18k pink gold double headed Snake ring set with diamond old cut (approximately 0.50 carats
Category

Antique 19th Century French Band Rings

Materials

Blue Sapphire, Diamond, 18k Gold

Art Deco 8.51 Carat Natural Ceylon Sapphire and Diamond Ring
Located in Theydon Bois, Essex
indication of heating, and is Sri Lankan (Ceylon) in origin. Cut – Cushion cut sapphire, with old cut
Category

Mid-20th Century Cluster Rings

Materials

Diamond, Sapphire, Blue Sapphire

Art Deco 12.00 Carat Ceylon Yellow Sapphire Ring
Located in Essex, GB
indication of heating, and is Sri Lankan (Ceylon) in origin. Cut – Cushion cut sapphire and old mine cut
Category

Mid-20th Century Solitaire Rings

Materials

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

1920s Art Deco Sapphire Diamond Gold Engagement Ring
Located in Chicago, IL
A unique Art Deco old cut diamond, blue sapphire (possibly synthetic) and 18k white gold engagement
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Blue Sapphire, Diamond, Sapphire, White Diamond, 18k Gold, Gold, White Gold

Antique Russian Sapphire and Diamond Gold Earrings
Located in Los Angeles, CA
. These beautiful earrings feature 2 sapphires at the center, approximately 0.70 carats total, with 8 old
Category

Early 20th Century Russian Drop Earrings

Materials

Diamond, Sapphire, 14k Gold

Sapphire Cultured Pearl Diamond Silver Gold Ring
Located in Paris, FR
An old cut diamonds, sapphires, cultured pearl, 18K gold and silver ring. Circa end of 19th century
Category

Antique 19th Century French More Rings

Materials

Cultured Pearl, Diamond, Sapphire, 18k Gold, Silver

Antique Victorian Sapphire Diamond Gate-Link Bracelet
Located in Sale, Cheshire
A gorgeous antique gate-link bracelet set with three blue sapphires and two old cut diamonds. It
Category

Antique Early 1900s Austrian Late Victorian Link Bracelets

Materials

White Diamond, Blue Sapphire, 18k Gold

1920s Beautiful Art Deco Sapphire Diamond Platinum Bracelet
Located in Lambertville, NJ
1920s Art Deco bracelet, crafted in platinum, featuring approximately 9 carats in Old European cut
Category

Vintage 1920s Art Deco More Bracelets

Materials

Diamond, Sapphire, Platinum

Antique Edwardian Sapphire Diamond "Blue Eye" Ring
Located in Sale, Cheshire
A wonderful Blue Sapphire & Old Cut Diamond Eye Ring dating from the Edwardian era, circa 1910
Category

Vintage 1910s English Edwardian Cluster Rings

Materials

White Diamond, Blue Sapphire, 18k Gold, Platinum

Antique Edwardian Sapphire Diamond Daisy Stud Earrings
Located in Sale, Cheshire
A superb pair of Edwardian era daisy stud earrings set with natural blue sapphires and old cut
Category

Early 20th Century English Edwardian Stud Earrings

Materials

White Diamond, Blue Sapphire, 18k Gold, Platinum

Antique Edwardian Sapphire Diamond Halo Cluster Ring
Located in Sale, Cheshire
A stylish antique halo ring, set with a central blue sapphire and a cluster of old cut diamonds
Category

Early 20th Century English Edwardian Cluster Rings

Materials

White Diamond, Blue Sapphire, 18k Gold, Platinum

Late Victorian Sapphire Diamond Heart Cluster Ring
Located in Sale, Cheshire
, deep blue with bright flashes as it catches the light. STONES Natural Sapphire & Old Cut Diamonds
Category

Antique Late 19th Century English Late Victorian Cluster Rings

Materials

White Diamond, Blue Sapphire, 18k Gold

Antique Art Nouveau Sapphire Diamond Lavaliere Pendant
Located in Sale, Cheshire
sapphires and two old cut diamonds, and crafted in platinum (15 karat gold backed). It's unusual to see an
Category

Early 20th Century English Art Nouveau Pendant Necklaces

Materials

Diamond, Sapphire, 15k Gold, Platinum

Antique Victorian Sapphire Diamond Crescent Moon Necklace
Located in Sale, Cheshire
A striking antique Crescent Moon necklace. The pendant is set with blue sapphires and old cut
Category

Antique Late 19th Century English Victorian Pendant Necklaces

Materials

White Diamond, Blue Sapphire, 9k Gold, Silver

Ceylon sapphire diamond gold platinum Tortoise brooch
Located in London, GB
sapphires and old cut diamonds.English c 1900
Category

Antique Early 1900s British High Victorian Brooches

Materials

Sapphire, White Diamond, 18k Gold, Platinum

Antique Diamond, Sapphire and Platinum Ring
Located in New York , NY
Old mine cut diamonds and sapphires are set in platinum. The delicate wire work shows platinum at
Category

20th Century American Edwardian Cocktail Rings

Materials

Diamond, Sapphire, Platinum, 14k Gold

Amazing Art Deco Emerald Sapphire Diamond Platinum Ring
Located in McLean, VA
cut sapphires highlighting the emerald, 12 old European cut diamonds framing the sapphires. There are
Category

Vintage 1920s Unknown Art Deco More Rings

Materials

Blue Sapphire, Diamond, Emerald

Antique Victorian Sapphire Pearl Diamond Horseshoe Brooch
Located in Sale, Cheshire
A substantial and beautifully made Victorian horseshoe brooch set with blue sapphires, old cut
Category

Antique 19th Century English Late Victorian Brooches

Materials

White Diamond, Natural Pearl, Blue Sapphire, 15k Gold

Art Deco Natural Sapphire and Diamond Pendant
Located in Essex, GB
chain (this is included in the price). Cut – Round cut sapphire and old cut diamonds. Clarity – The
Category

Early 20th Century Pendant Necklaces

Materials

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

Antique Edwardian Diamond Sapphire Gunmetal Vesta Case
Located in Sale, Cheshire
karat gold fittings (hinge, bail, etc), and set with an old cut diamond and a deep sapphire cabochon
Category

Early 20th Century English Edwardian Boxes and Cases

Materials

White Diamond, Blue Sapphire, 9k Gold, Base Metal

Art Deco Sapphire Diamond Openwork Cluster Ring
Located in Sale, Cheshire
. STONES Old cut Diamonds and Blue Sapphires RING SIZE 5 US MEASUREMENTS Head: 13.2mm wide - Central
Category

Vintage 1930s American Art Deco Cluster Rings

Materials

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

Antique Edwardian Sapphire Diamond Cluster Ring Platinum
Located in Lancaster, Lancashire
a beautiful rich blue Sapphire which is surrounded by old cut Diamonds. The centre Sapphire is
Category

Vintage 1910s British Edwardian Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold, Platinum

1876 Victorian Sapphire Diamond Gold Three Stone Ring
Located in Theydon Bois, Essex
rich and bright blue sapphires (natural, unheated) interset with two pairs of high white old cut
Category

Antique 1870s British Victorian Three-Stone Rings

Materials

Blue Sapphire, Diamond, 18k Gold

Antique Edwardian Sapphire Diamond Ring Platinum, circa 1900
Located in Lancaster, Lancashire
rich natural blue Sapphire which is approx. 2.30ct in size complimented by 1.40ct of Old Cut Diamonds
Category

Early 20th Century British Edwardian Engagement Rings

Materials

Diamond, Sapphire, Platinum

Antique Victorian Sapphire Diamond Rose Gold Chequerboard Ring
Located in Sale, Cheshire
The mother of all chequerboard rings.... set with two rows of alternating sapphires and old cut
Category

Antique 19th Century English Victorian Cluster Rings

Materials

White Diamond, Blue Sapphire, 18k Gold, Rose Gold

Platinum, Diamonds and Sapphires French Art Deco Bracelet
Located in Saint-Ouen, FR
Exquisite French Art deco bracelet, circa 1925. Made of platinum, beautiful old French cut diamonds
Category

Vintage 1920s French Art Deco Retro Bracelets

Materials

Diamond, Blue Sapphire, Platinum

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Old Cut Sapphire For Sale on 1stDibs

Find the exact old cut sapphire you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. You can easily find a 502 antique edition and 98 modern creations to choose from as well. If you’re looking for an old cut sapphire 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. There have been many well-made iterations of the classic old cut sapphire over the years, but those made by Antinori Fine Jewels, Hancocks and Single Stone are often thought to be among the most beautiful. See these pages for an old european cut iteration of this accessory, while there are also old mine cut cut and round cut cut versions available here, too. Finding an old cut sapphire for sale for women should be easy, but there are 125 pieces available to browse for unisex as well as men, too.

How Much is an Old Cut Sapphire?

The price for an old cut sapphire starts at $538 and tops out at $209,000 with these rings, on average, selling for $7,282.

The Legacy of Sapphire in Jewelry Design

On 1stDibs, shop the bright blue gems that star in sapphire rings, sapphire necklaces and other vintage and antique sapphire jewelry

Sapphires — the stone of choice for Napoleon, Princess Diana and Elizabeth Taylor — have been a favorite of aristocrats and the well-to-do since the time of the Ancient Greeks.

Picture a sapphire. If the stone you conjure is a deep cornflower blue, you’re seeing only part of the picture. Although blue Kashmirs are considered the most valuable, sapphires come in every color except red. No matter the hue, this very special gem is rich in history and beloved by royals (FYI, Princess Diana and Kate Middleton share an 11-carat sapphire engagement ring), so September babies are in very noble company.

America’s version of royalty — old money and celebrities — have also shown a predilection for the blue stones. In 1940, John D. Rockefeller Jr. had Cartier mount a 62-carat sapphire he had bought from an Indian maharajah in a brooch for his first wife, Abby Aldrich Rockefeller; in 2001, the piece sold for a then-record of $3,031,000 at Christie’s New York.

The grand dame of jewelry, Elizabeth Taylor had a passion for the gems that her lovers were happy to indulge. Second husband Michael Wilding gave her an engagement ring set with a cabochon sapphire, while Richard Burton famously presented her with a BVLGARI sautoir set with diamonds and sapphires, including at its center a cabochon Burmese weighing 52.72 carats. One of the star lots in the sale of Taylor’s jewels at the Christie’s New York in 2011, it sold for $5,906,500.

You don’t have to have blue blood or a bulging bank account, however, to get an eyeful of this much-coveted gem. A number of outstanding examples reside in public collections.

The Smithsonian Museum of Natural History owns the 423-carat Logan sapphire, a gift from the Guggenheim family, and the Hall sapphire and diamond necklace, designed by Harry Winston and featuring 36 fine, well-matched cushion-cut Sri Lankan sapphires weighing a combined 195 carats. Also in the collection is the Bismarck sapphire necklace, designed by Cartier and sporting a central sapphire weighing 98.6 carats, which Mona Von Bismarck donated to the museum.

Sapphires are composed of corundum. Their color derives from trace elements, such as iron, titanium, chromium, copper or magnesium. When the trace element produces a ruby hue, the stone is called, what else, a ruby. (which is, as mentioned above, why sapphires cannot be red by definition).

The allure of large gemstones endures throughout the periods characterized as vintage, and sapphire features frequently in vintage engagement rings. (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.)  

Find an exquisite collection of vintage and antique sapphire jewelry on 1stDibs.

Questions About Old Cut Sapphire
  • 1stDibs ExpertMay 5, 2023
    How old an old European-cut diamond is varies. The old European cut is a precursor to the modern round brilliant cut. The stone appears circular when looked at from the top (because of its low table or largest facet) and has a high crown (the part above the middle of the stone) with larger facets. The tip of the stone, or the culet, is flat instead of pointed. This style was used predominantly in the 19th century, hence the name. It is best to consult a certified appraiser for assistance with dating and identifying antique jewelry. On 1stDibs, find a variety of European-cut diamond jewelry.
  • 1stDibs ExpertApril 5, 2022
    Not to be confused with an emerald gemstone, an emerald-cut sapphire is a sapphire cut into a rectangular shape. An emerald-cut adds the illusion of flashing lights across the stone with its unique shape and step-cut along the edges. Browse a wide selection of sapphire jewelry in a variety of cuts on 1stDibs.
  • 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 ExpertOctober 12, 2021
    The best cuts for a blue sapphire are said to be oval, round, and cushion. The look of an oval-cut sapphire is similar to that of a round sapphire. The slightly extended shape, on the other hand, can make it appear larger than a similar-weight stone. A round cut is one of the most traditional shapes, and it helps a gem dazzle to its full potential. The presence of about 58 facets results in a large amount of light being reflected. Cushion cut, sometimes known as the 'pillow-cut,' has been popular for generations due to its cushion-like appearance. The gemstone has a rectangular form with soft, slightly rounded corners in this cut. Typically, the crown has 58 to 64 big facets. These cuts were popular in numerous forms of jewelry, including rings, pendants, and earrings. Find a wide variety of blue sapphire jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    Although old European cut diamonds are often priced lower than modern cuts, due to scarcity, they can sometimes be more valuable than modern cut diamonds.
  • 1stDibs ExpertApril 5, 2022
    Jewelry makers stopped using the old European cut for diamond and other gemstone jewelry around 1930. The style was common during the Art Deco period, but the brilliant cut became popular in the years that followed. On 1stDibs, shop a selection of Old European cut diamond gemstone jewelry.
  • 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 ExpertAugust 24, 2021
    Yes, old European cut diamonds can be worth more than many other cut diamonds as they are not produced anymore. This cut was developed and popularized between the years 1890 and 1930 and is likely to be found in an antique ring belonging to this period and featuring a round-cut diamond.
  • 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.