12 Carat Diamond Ring: The Celebrity Standard
When you hit double digits in carat weight, you enter a new stratosphere of luxury. A 12 carat diamond is not just jewelry; it is an asset.
Our team of certified gemologists and jewelry experts provides in-depth analysis to help you make informed purchasing decisions.
How Big is It?
A 12 carat round diamond is approximately 14.5mm in diameter.
For context, the average engagement ring is 1 carat (6.5mm). A 12 carat stone is more than double the width and looks enormous on the hand. It will cover the entire width of a size 6 finger.
The Price
Depending on the 4Cs (Color, Clarity, Cut), a 12 carat diamond can range from:
- $150,000 (Lower color/clarity, perhaps a K color SI2).
- $2 Million+ (D Flawless).
Lab Grown Option
Technology has advanced to the point where you can now buy a 12 carat lab-grown diamond.
Price: Around $15,000 - $30,000.
This makes the "celebrity look" accessible to mere mortals (well, mortals with a healthy budget).
Where to Buy
For the best selection and value, we recommend checking these top-rated retailers:
James Allen
Read our reviewBlue Nile
Read our reviewBrilliant Earth
Read our reviewClean Origin
Read our reviewWith Clarity
Read our reviewAbout this guide
Written by the TheCaratCut Editorial Team. Our recommendations follow our editorial policy, and we may earn commissions through affiliate links. See our affiliate disclosure.