1 Carat Diamonds
Compare how 1 carat diamonds look across all shapes
1 Carat Size Guide
A 1 carat diamond varies in appearance depending on the shape. Here are the actual dimensions (width × height) for each cut. Browse 1 carat diamonds to see pricing and availability.
Round
6.5mm × 6.5mm
Princess
5.5mm × 5.5mm
Cushion
5.5mm × 5.5mm
Emerald
6.7mm × 5mm
Asscher
5.5mm × 5.5mm
Oval
7.7mm × 5.7mm
Pear
8.6mm × 5.6mm
Marquise
10mm × 5mm
Radiant
6.5mm × 5.1mm
Heart
6.5mm × 6.5mm
Note: Dimensions are based on well-cut diamonds with standard proportions. Actual sizes may vary slightly based on cut quality and proportions.
Compare Shapes at 1 Carats
See how different diamond shapes compare when they're all 1 carats:
Round vs Princessat 1 caratsRound vs Cushionat 1 caratsRound vs Emeraldat 1 caratsRound vs Asscherat 1 caratsRound vs Ovalat 1 caratsRound vs Pearat 1 caratsRound vs Marquiseat 1 caratsRound vs Radiantat 1 caratsRound vs Heartat 1 caratsPrincess vs Cushionat 1 caratsPrincess vs Emeraldat 1 caratsPrincess vs Asscherat 1 caratsPrincess vs Ovalat 1 caratsPrincess vs Pearat 1 caratsPrincess vs Marquiseat 1 caratsPrincess vs Radiantat 1 caratsPrincess vs Heartat 1 caratsCushion vs Emeraldat 1 caratsCushion vs Asscherat 1 caratsCushion vs Ovalat 1 caratsCushion vs Pearat 1 caratsCushion vs Marquiseat 1 caratsCushion vs Radiantat 1 caratsCushion vs Heartat 1 carats
Size Up or Down
Compare 1 carat diamonds to nearby carat weights:
0.75ct vs 1ct Round0.75ct vs 1ct Princess0.75ct vs 1ct Cushion0.75ct vs 1ct Emerald0.75ct vs 1ct Asscher0.75ct vs 1ct Oval0.75ct vs 1ct Pear0.75ct vs 1ct Marquise0.75ct vs 1ct Radiant0.75ct vs 1ct Heart1ct vs 1.25ct Round1ct vs 1.25ct Princess1ct vs 1.25ct Cushion1ct vs 1.25ct Emerald1ct vs 1.25ct Asscher1ct vs 1.25ct Oval1ct vs 1.25ct Pear1ct vs 1.25ct Marquise