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 18ct Gold, Victorian Ruby & Diamond Carved Ring, Hallmarked London 1887
Located in Brighton, GB
Victorian Carved Ring
18ct Gold
Hallmarked London 1887
Makers Mark E B
Discover the elegance of our exquisite 18ct yellow gold Victorian ring, a true masterpiece showcasing a ...
Category
Antique Late 19th Century English Victorian Band Rings
Materials
Diamond, Ruby, Gold, 18k Gold
Antique Platinum, 1920s Original Art Deco Rectangular Sapphire & Diamond Ring
Located in Brighton, GB
Sapphire Art Deco Ring
Platinum
Circa 1920s
Step into the elegance of the 1920s with this stunning Art Deco ring, featuring a captivating rectangular-shaped natural sapphire at i...
Category
Early 20th Century Art Deco Engagement Rings
Materials
Diamond, Sapphire, Platinum
Antique 18ct Gold & Platinum, Edwardian Cushion Cut Sapphire and Diamond Ring
Located in Brighton, GB
Antique Sapphire & Diamond Ring
18ct Gold & Platinum
Circa 1910
A striking and sophisticated original Edwardian ring, crafted in 18ct gold and platinum, centred around a ...
Category
Early 20th Century Edwardian Cluster Rings
Materials
Diamond, Sapphire, Gold, 18k Gold, Platinum
TIFFANY & Co. Etoile 18K Gold 5 Diamond Heart Pendant Necklace
Located in Los Angeles, CA
TIFFANY & Co. Etoile 18K Gold 5 Diamond Heart Pendant Necklace
Metal: 18K yellow Gold
Weight: 9.70 grams
Chain: 16"
Pendant: 16mm wide
Diamond: 5 round brilliant diamonds, carat...
Category
2010s American Pendant Necklaces
Materials
Diamond, 18k Gold, Platinum
Pink Shell Pendant with Natural Diamonds and Green Tsavorite
Located in Miami, FL
Shell pendant with natural diamonds and green tsavorite garnet gemstone, set in 14k gold. Wear this pendant alone or layer it with other gold chains for a beautiful layered effect. ...
Category
2010s American Modern Pendant Necklaces
Materials
Diamond, Tsavorite, 14k Gold
Antique 18ct Gold French Stamped 0.80 Carat Single Stone Diamond Engagement Ring
Located in Brighton, GB
Antique Diamond Ring
18ct White Gold- French Stamped
Circa 1920s
Transport yourself to the 1920s with this exquisite example of French jewellery design. This authentic Art Deco s...
Category
Early 20th Century French Engagement Rings
Materials
Diamond, Gold, 18k Gold, White Gold


