Questions & Answers
Our trusted network of 1stDibs sellers answer common questions
How large is a 3-carat diamond?
1 Answer

In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
1stDibs ExpertFebruary 27, 2024
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Shop for Diamond Jewelry on 1stDibs
Antique Edwardian Old European Cut Diamond Cluster Ring ~1.00ctw
Located in Orlando, FL
An elegant Edwardian diamond cluster ring crafted in 18K yellow gold with a platinum-topped setting, showcasing the refined craftsmanship and delicate proportions characteristic of t...
Category
Vintage 1910s Edwardian Cluster Rings
Materials
Diamond, 18k Gold, Yellow Gold, Platinum
Antique 18ct Yellow Gold, Victorian Sapphire & Diamond Oval Cluster Ring
Located in Brighton, GB
Antique Sapphire Cluster Ring
18ct Gold
Circa 1880
Introducing a stunning Victorian cluster ring that epitomises timeless elegance. At its centre, this ring showcases a captivati...
Category
Antique Late 19th Century Victorian Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Yellow Gold
Vintage 1930s Diamonds Set in 18ct & Platinum New Stud Earring Settings
Located in Brighton, GB
Diamond Stud Earrings
18ct White Gold & Platinum Stamped 750 & 950
Circa 1930s diamonds
New Settings
Introducing our stunning diamond stud earrings, featuring old brillian...
Category
Mid-20th Century Stud Earrings
Materials
Diamond, 18k Gold, Platinum
Vintage 18ct Yellow Gold, Double Head Diamond Snake Ring, Circa 1980s
Located in Brighton, GB
Vintage Double Head Snake Ring
18ct Yellow Gold
A striking sculptural ring crafted in rich 18ct yellow gold, designed as two entwined serpents forming a continuous loop around the...
Category
Late 20th Century Band Rings
Materials
Diamond, 18k Gold, Yellow Gold
18ct Gold 1920s Art Deco Octagonal Cut Aquamarine & Diamond Cocktail Ring
Located in Brighton, GB
Art Deco Aquamarine Ring
18ct Gold Tested
Circa 1920s
Introducing a stunning 18ct yellow gold ring from the glamorous 1920s, epitomising the elegance of the Art Deco era. This e...
Category
Early 20th Century Art Deco Cocktail Rings
Materials
Aquamarine, Diamond, Gold, 18k Gold
Belle Epoque/Early Edwardian Diamond Ring 1900-1915
Located in OVIEDO, AS
Antique Diamond Cluster Ring
Belle Époque / Early Edwardian, circa 1900–1915
An elegant antique diamond cluster ring centered with an old European-cut diamond, framed within a delic...
Category
Antique Early 1900s French Belle Époque Cluster Rings
Materials
Diamond, 18k Gold, Platinum


