Skip to main content
Questions & Answers
Our trusted network of 1stDibs sellers answer common questions

How many carats is a 7mm Sapphire?

1 Answer
How many carats is a 7mm Sapphire?
A standard size of a round sapphire is 6mm which is approximately one carat, making 7mm sapphires just slightly larger than a carat. Because sapphires are heavier than diamonds, a one carat sapphire is slightly smaller than a one carat diamond.
1stDibs ExpertFebruary 22, 2021
Shop for 7 Carat Oval Sapphire on 1stDibs
New African 5.20 Carat Oval & Diamond Cut Blue Sapphire Sterling Ring Size 7
Located in Eagan, MN
stone is 5.20 carats and measures 12.x 9.8 mm. It is surrounded by diamond cut blue sapphire stones and
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Sapphire, Blue Sapphire, Silver, Sterling Silver

White Gold Sapphire Diamond Link Bracelet 7" - 14k Oval 4.27ctw
Located in Greensboro, NC
Metal Content: 14k White Gold Stone Information Natural Sapphires Treatment: Heating Carat(s
Category

21st Century and Contemporary Link Bracelets

Materials

Diamond, Sapphire, 14k Gold, White Gold

31.46 Carat Multi Color Oval Sapphire & Round Diamond Bracelet
Located in New York, NY
• 18KT White Gold • 7” Long • 31.46 Carats • Number of Oval Sapphires: 13 • Carat Weight: 27.46ctw
Category

2010s American Modern Modern Bracelets

Materials

Diamond, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Purple...

New African 2.9 Carat Deep Blue Sapphire & White Sapphire Sterling Ring Size 7
Located in Eagan, MN
The ring is a size 7 and has just a beautiful and brilliant sapphire stone. The stone is from
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Sapphire, Blue Sapphire, Silver, Sterling Silver

8Ct Natural Oval Blue Sapphire Tennis Bracelet 14 Karat Yellow Gold, 7 Inch Long
Located in New York, NY
Natural Oval Blue Sapphire Tennis Bracelet 14 Karat White Gold, 7 Inch Long This exceptionally
Category

2010s Tennis Bracelets

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

French Art Deco 1925s 7 Carats Sapphire Diamonds Platinum Ring
Located in Poitiers, FR
openworked with arabesques. Weight of the sapphire : 7 carats approximately. Total weight of the diamonds
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Blue Sapphire, Sapphire, White Diamond, Diamond, Platinum

Shop All