Skip to main content

Old Cut Round Diamond

to
119
2,184
1,604
1,225
1,105
638
3,332
493
267
250
233
9
413
2,708
261
320
330
587
370
189
111
50
26
18
18
6
2,042
1,333
26
1021
985
188
106
70
to
7
23
11
10
9
6
843
306
223
91
78
67
55
11
10
5
5
1
3,398
3
2,249
1,056
Sort By
1940s 1.01 Carat Diamond Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
displays a feature 1.01Ct Old European round cut diamond eight claw set to in relief to the center of the
Category

Vintage 1940s Unknown Solitaire Rings

Materials

Diamond, Platinum

Antique 1900s 2.39 Carat Diamond and Gold Pendant/Brooch Circa 1900
Located in Jesmond, Newcastle Upon Tyne
, ornamented to the center with a feature bezel set 0.33Ct Old European round cut diamond. The three crescent
Category

Antique Early 1900s Unknown Pendant Necklaces

Materials

Diamond, 9k Gold, Yellow Gold, Gold

Marsh and Co. Art Deco Pearl and Diamond Necklace
Located in London, GB
frame plays host to glorious round faceted old cut diamond. This ensemble is accentuated by three
Category

Vintage 1930s American Art Deco Chain Necklaces

Materials

Diamond, Pearl, Platinum, Steel

Art Deco Fancy Colored Diamond Cluster Ring, circa 1925
Located in London, GB
approximate weight of 1.56 carats, flanked by two round old cut diamonds in open back claw settings with a
Category

Vintage 1920s Unknown Art Deco Three-Stone Rings

Materials

Diamond, Palladium

Diamond 15k Yellow and White Gold Fox Hunting Brooch
Located in Jesmond, Newcastle Upon Tyne
textured decoration, incorporating two pavé set Old European round cut diamonds representing the eyes. The
Category

Early 20th Century Unknown Brooches

Materials

Diamond, 15k Gold, White Gold, Yellow Gold

Diamond Crystal Yellow Gold and Platinum Cufflink and Stud Set
Located in Jesmond, Newcastle Upon Tyne
round cut diamond bezel set in platinum. An applied platinum border with textured decoration encircles
Category

Vintage 1930s Unknown Cufflinks

Materials

Crystal, Diamond, 14k Gold, Yellow Gold, Platinum

Natural Burmese Sapphire and Diamond Drop Earrings, circa 1925
Located in London, GB
combined approximate weight of 2.80 carats, further set above with three round old cut diamonds in open
Category

Vintage 1920s Unknown Art Deco Drop Earrings

Materials

Diamond, Sapphire, Platinum

Vintage 1940s French Diamond and Yellow Gold Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
round cut diamond is held in relief in a eight claw / prong pierced decorated, elevated basket setting
Category

Vintage 1940s French Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Art Deco Style Diamond Green Emerald Cocktail 14K White Gold Ring
By Unbranded
Located in Oakton, VA
This Art Deco style ring sits low and hugs the finger nicely. It features round old cut diamonds in
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Antique Art Deco 2.18ct Diamond and 18ct White Gold Brooch Circa 1925
Located in Jesmond, Newcastle Upon Tyne
decorated Art Deco bar design is ornamented to the centre with a claw set 1.50ct Old European round cut
Category

Vintage 1920s Unknown Art Deco Brooches

Materials

Diamond, White Gold

Pearl and 0.67 Carat Diamond and 12k White Gold Necklace - Antique Circa 1910
Located in Jesmond, Newcastle Upon Tyne
0.38ct Old European round cut diamond and 8.7mm pearl to the terminal of two asymmetrical curvilinear
Category

Vintage 1910s Edwardian Drop Necklaces

Materials

Diamond, Pearl, Gold, White Gold

Circa 1920 Natural Unenhanced Burmese Sapphire Diamond Platinum Necklace Tiara
Located in London, GB
32.94 carats, alternated by twenty two round old cut diamonds in open back rubover settings with a
Category

Vintage 1920s Unknown Link Necklaces

Materials

Diamond, Blue Sapphire, Platinum

Antique Natural Pearl and Diamond Yellow Gold Pendant Brooch
Located in Jesmond, Newcastle Upon Tyne
design via an articulated linear drop, accented with a single Old European round cut diamond. The
Category

Vintage 1910s Unknown Edwardian Pendant Necklaces

Materials

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

Antique 2.92 Carat Diamond and 18k Yellow Gold Five Stone Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
European round cut diamonds, totalling 2.92cts; this broad linear formation of diamonds creates a stunning
Category

Vintage 1930s Unknown Band Rings

Materials

Diamond, White Gold, Yellow Gold

Vintage Diamond Earrings, circa 1950
Located in London, GB
Vintage diamond earrings. A marching pair, each set with a round old cut diamond, the first H
Category

Vintage 1950s Unknown Clip-on Earrings

Materials

Diamond, Yellow Gold, Platinum

Antique Art Deco 11.20Ct Black Onyx and 0.91Ct Diamond, Platinum Brooch
Located in Jesmond, Newcastle Upon Tyne
, pierced decorated Art Deco style design displays a feature 0.26ct Old European round cut diamond, pavé set
Category

Vintage 1920s Unknown Art Deco Brooches

Materials

Diamond, Onyx, White Gold, Platinum

Art Deco Diamond Ruby Platinum Ring
Located in New York, NY
adornment on any finger. The center section is pave set with bright white and lively round old cut diamonds
Category

Vintage 1930s Art Deco Band Rings

Materials

Diamond, Ruby, Platinum

Antique French 5.00Ct Diamond and Platinum Brooch Art Deco Circa 1910
Located in Jesmond, Newcastle Upon Tyne
feature 1.10ct Old European round cut diamond, collet set to the centre; this feature stone has been
Category

Vintage 1910s French Brooches

Materials

Diamond, Platinum

Antique and Contemporary 1.32 Carat Diamond Platinum Three-Stone Ring
Located in Jesmond, Newcastle Upon Tyne
Clarity SI2 Cut Old European round Content 0.42 carat Dimensions 4.66mm x 4.60mm x 2.95mm Total Diamond
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Art Nouveau Diamond Silver Gold Cocktail Ring
Located in London, GB
Art Nouveau diamond ring. Set with a total of thirty two round old cut diamonds of varying sizes in
Category

Antique Early 1900s Art Nouveau Cocktail Rings

Materials

Diamond, Silver, Yellow Gold

Antique 1920s 1.08 Carat Diamond and White Gold Cluster Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
ornamented with a central feature four claw set 0.52 Ct Old European round cut diamond. The feature diamond
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Garrard Co. Diamond Ring, English, 1995
By Garrard Co. Ltd.
Located in London, GB
Garrard & Co. diamond ring. Set to centre with a round old cut diamond O to P colour, VS1 clarity
Category

1990s English Engagement Rings

Materials

Diamond, 18k Gold

1920s Antique Diamond and Yellow Gold Twist Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
. The pierced decorated twist design displays two feature Old European round cut diamonds, 14k white
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

1910s Diamond 18k Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
with two Old European round cut diamonds, one slightly larger than the other, individually bezel set
Category

Early 20th Century Unknown Engagement Rings

Materials

Diamond, Yellow Gold

Vintage Sapphire Diamond Brooch, Flower Bouquet Design set in Platinum
Located in London, GB
colour - Medium blue, Assessed Clarity - Eye Clean). 7 x Old Round Brilliant Cut diamonds and 54 x
Category

Vintage 1940s Brooches

Materials

White Diamond, Sapphire, Diamond, Platinum

Vintage Diamond and Yellow Gold Platinum Set Trilogy Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
European round cut diamond flanked by two slightly smaller Old European round cut diamonds, all held in a
Category

Vintage 1940s British Band Rings

Materials

Diamond, Yellow Gold, Platinum

2.85 Carat Ruby Diamond Pearl Gold Crescent Brooch
Located in Jesmond, Newcastle Upon Tyne
excellent condition. Ruby Quality Color Natural Cut Old round Content 0.85 carat Diamond Quality Color
Category

Antique 1890s Unknown Brooches

Materials

Diamond, Ruby, Pearl, 9k Gold, Yellow Gold, Gold

Art Deco Egyptian Revival sapphire and diamond ring, circa 1935.
Located in London, GB
weight of 1.00 carats, further set with fifty round old cut diamonds in open back grain and rubover
Category

Vintage 1930s Unknown Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Antique 1.32 Carat Emerald Diamond Yellow Gold Necklace
Located in Jesmond, Newcastle Upon Tyne
. The palladium set frame is ornamented with a central Old European round cut diamond, and four round
Category

Vintage 1910s Pendant Necklaces

Materials

Diamond, Emerald, 15k Gold, Yellow Gold

Art Deco Pearls Diamond Gold Clip-on Earrings
Located in Napoli, NA
pearls of perfect shape, condition and color, approx. 8,0 mm. They are set with sparkling round old
Category

Vintage 1940s European Art Deco Clip-on Earrings

Materials

Diamond, Pearl, Gold, 18k Gold

Hardstone and 0.78 Carat Diamond, 18k Yellow Gold Black Cameo Brooch Circa 1880
Located in Jesmond, Newcastle Upon Tyne
exceptional hardstone panel is framed by a plain frame accented with eight collet set Old European round cut
Category

Antique 1880s Unknown Brooches

Materials

Diamond, Yellow Gold, Silver

1920s, Antique French 3.46 Carat Diamond and Natural Pearl Platinum Brooch
Located in Jesmond, Newcastle Upon Tyne
diamond brooch is fine quality, set with fine and impressive feature Old European round cut diamonds
Category

Vintage 1920s Unknown Brooches

Materials

Diamond, Natural Pearl, Platinum

1.47 Carat Diamond Platinum Three-Stone Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
Diamond Two Color I Clarity VS1 Cut Old European round Content 0.47 carat Dimensions 4.86mm x 4.79mm x
Category

Vintage 1910s English Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Antique 1920s Diamond and Yellow Gold Platinum Set Twist Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
platinum baskets display two Old European round cut diamonds set on a twist to the tapering ring shoulders
Category

Vintage 1920s Engagement Rings

Materials

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

Antique Diamond and Yellow Gold Buckle Ring
Located in Jesmond, Newcastle Upon Tyne
ring is fine quality set with a very high color graded, very high clarity graded old cut diamond. The
Category

Antique Early 1900s Unknown Band Rings

Materials

Diamond, 18k Gold, Yellow Gold

Antique 1.05 Carat Diamond and Yellow Gold Cluster Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
embellished with seven impressive bezel set Old European round cut diamonds, totalling 1.05 carat. The
Category

Vintage 1930s Engagement Rings

Materials

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

Art Deco diamond and black enamel ring, circa 1925.
Located in London, GB
Art Deco diamond and black enamel ring. Set to centre with a round old cut diamond in an open back
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

1910s Pearl Diamond Peridot and Ruby Yellow Gold Brooch
Located in Jesmond, Newcastle Upon Tyne
features six pearls displayed alternately with six Old European round cut diamonds, round cut rubies and
Category

Vintage 1910s Unknown Brooches

Materials

Diamond, Pearl, Peridot, Ruby, 9k Gold, Yellow Gold

1.07 Carat Late Art Deco European Diamond Platinum Engagement Ring
Located in Stamford, CT
Art Deco Old European cut round diamond square Platinum engagement ring, with accent diamonds along
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

French 1920s Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
ring has been crafted in platinum. The 0.53Ct old European round cut diamond is held in relief in an
Category

Vintage 1920s French Solitaire Rings

Materials

Diamond, Platinum

Antique Ruby and 1.37Ct Diamond 15k Yellow Gold Bracelet, Circa 1920
Located in Jesmond, Newcastle Upon Tyne
, consisting of fourteen Old European cut diamonds and fourteen round faceted cut rubies, all collet set. Each
Category

Vintage 1920s Unknown Link Bracelets

Materials

Diamond, Ruby, Yellow Gold

Antique 1.33 Carat Diamond and 18k Yellow Gold Cocktail Ring Circa 1915
Located in Jesmond, Newcastle Upon Tyne
round cut diamond, collet set in a vertical formation to the centre of the design. The feature diamond
Category

Vintage 1910s Cocktail Rings

Materials

Diamond, Yellow Gold, 18k Gold, White Gold

Antique French Seed Pearl and Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
setting is embellished with twenty-six pavé set Old European round cut diamonds. The trifurcated ring
Category

Vintage 1920s French Cocktail Rings

Materials

Diamond, Pearl, 18k Gold, Yellow Gold

Art Deco Diamond and Platinum Bracelet
Located in New York, NY
Art Deco Diamond and Platinum Bracelet This antique Art Deco bracelet has old european cut round
Category

Early 20th Century European Art Deco Link Bracelets

Materials

Diamond, Platinum

Antique 1930s Pearl and Diamond Yellow Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
encircled by a total of eight individually millegrain decorated bezel set Old European round cut diamonds
Category

20th Century Unknown Cluster Rings

Materials

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

Edwardian deep Royal Blue Burmese sapphire and diamond cluster ring, circa 1915.
Located in London, GB
settings with a combined approximate weight of 0.52 carats, further adorned with eight round old cut
Category

Vintage 1910s Edwardian Cluster Rings

Materials

Diamond, Sapphire, Platinum

1890s Victorian Diamond and Yellow Gold Bangle
Located in Jesmond, Newcastle Upon Tyne
motif. The design is ornamented with three individually claw / prong set Old European round cut
Category

Antique 1890s Unknown Victorian Bangles

Materials

Diamond, 18k Gold, Yellow Gold

Antique Unisex Emerald and Diamond Band in 18k Yellow Gold
Located in Jesmond, Newcastle Upon Tyne
on either side by stunning claw set Old European round cut diamonds. The anterior surface of the
Category

Antique Early 1900s Australian Band Rings

Materials

Diamond, Emerald, Yellow Gold

1920s Diamond and Yellow Gold Silver Set Twist Ring
Located in Jesmond, Newcastle Upon Tyne
example of diamond jewellery. Diamond Quality Diamond One Color G Clarity VVS2 Cut Old European round
Category

Vintage 1920s Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

Art Deco 1.47ct Diamond and 18k Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
. The substantial twist design is ornamented with two feature Old European round cut diamonds, set
Category

20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

Vintage 6.52 Carat Diamond and White Gold Trilogy Ring
Located in Jesmond, Newcastle Upon Tyne
diamond is flanked on either side by an antique (circa 1900) 1.53ct and 1.51ct Old European round cut
Category

1990s Unknown Engagement Rings

Materials

Diamond, White Gold

Antique Diamond Yellow Gold Twist Ring
Located in Jesmond, Newcastle Upon Tyne
feature 0.50 carat old European round cut diamond, bezel set in relief to the center of the simple
Category

Antique Early 1900s Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

1940s, Late Art Deco 4.48 Carat Diamond and Platinum Bracelet
Located in Jesmond, Newcastle Upon Tyne
one hundred and ninety bezel and pavé set diamonds in a combination of Dutch cuts, Old European round
Category

Vintage 1940s Unknown Art Deco Retro Bracelets

Materials

Diamond, Platinum

9 - 10 Karat White Gold Onyx and Diamond Ring Size 7.25 #21438
Located in Washington Depot, CT
striking rectangular onyx stone accented with one round old mine cut diamond*, adding a touch of sparkle
Category

20th Century Fashion Rings

Materials

Diamond, Onyx, 10k Gold, White Gold

Antique Diamond and Yellow Gold Bar Brooch
Located in Jesmond, Newcastle Upon Tyne
yellow gold. The antique bar brooch displays a feature 0.32 carat Old European round cut diamond eight
Category

Antique Early 1900s Unknown Brooches

Materials

Diamond, 9k Gold, Yellow Gold

Art Deco 1.75 Ct Diamond Plus 2.20 Ct Complement Platinum Plaque Ring
Located in Napoli, IT
old European cut of 1.75 CT (I/J/VVS1 – agd 7.6 mm.) complemented by 46 old round cut Diamonds adding
Category

Vintage 1920s European Art Deco Cluster Rings

Materials

Diamond, Platinum

1905 Negligé necklace paved with 10 carats of diamonds
Located in Monte Carlo, MC
Negligé necklace in platinum, paved with approximately 10 carats of pear, round and old cut
Category

Early 20th Century French Drop Necklaces

Materials

Diamond, White Diamond, Gold, Platinum

  • 1
  • ...
Get Updated with New Arrivals
Save "Old Cut Round Diamond", and we’ll notify you when there are new listings in this category.

Old Cut Round Diamond For Sale on 1stDibs

Find the exact old cut round diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and 18k Gold. You can easily find a 156 antique edition and 46 modern creations to choose from as well. Making the right choice when shopping for an old cut round diamond 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. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. Creating an old cut round diamond has been a part of the legacy of many jewelers, but those produced by Antinori Fine Jewels, Single Stone and Hancocks are consistently popular. A round cut version of this piece has appeal, but there are also old european cut and old mine cut versions for sale. There aren’t many items for men if you’re seeking an old cut round diamond, as most of the options available are for women and unisex.

How Much is an Old Cut Round Diamond?

The price for an old cut round diamond starts at $325 and tops out at $387,892 with these rings, on average, selling for $4,800.

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 Cut Round Diamond
  • 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
    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 ExpertNovember 2, 2023
    There are a total of 58 cuts or facets on a round diamond. The 32 on the crown include eight star facets, 16 upper girdle facets and eight kite facets. On the pavilion, there are 25 facets made up of the lower girdle and pavilion main facets. Find a wide range of diamond jewelry on 1stDibs.
  • 1stDibs ExpertAugust 17, 2021
    A brilliant cut diamond is a diamond cut to maximize its brilliance. This diamond shape has 57 facets, round brilliant cut diamonds are among the most popular styles of engagement rings. This cut is known for, when compared to other cuts, most closely mimicking the natural contours of a rough diamond crystal.
  • 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.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, cushion cut diamonds look larger than round cut diamonds. Cushion cut diamonds have a larger table per carat than round diamonds, making them appear larger. This coupled with cushion cut diamonds' larger facets, tend to make these types of diamonds appear larger to our eyes.