Quick and Easy Buying Guide

Carat weight: 1 carat = 200 milligrams = 6.5 mm diameter. Doubling weight doesn't double diameter.

Diamond clarity: FL/IF/VVS/VS = super expensive, near perfect. SI = best value if you can check a photo for obvious inclusions (defects).


Color: D-G = colorless, expensive, only if you have money to burn. H-J = best value. Can go lower in gold metal settings than white metal.

Cut: Better cut ratings let more light into a diamond, making it sparkle more. Very important property, don't skimp here.

Set a budget and minimum cut (Premium). Go J color for gold and I/H for white metals. Go searching for SI1/SI2 clarity diamonds at James Allen. Pick a diamond with small/no inclusions. Choose a ring setting and buy it risk-free (60-day returns).

Actual Diamond Sizes of a 0.84 Carat Diamond

This article gives an illustrated example of the real size of a 0.84 carat diamond on an average woman's hand. If you are hesitant to put too much stock in a simple picture, you can measure the size of your finger and compare it with the 6.2 mm mean diameter for a diamond of size 0.84 carats. I have used the most common engagement ring size, which is size 6, in the image, which has an internal diameter of 16.5 mm or 0.65 inches. It is good to be cautious when looking at a picture - a picture alone won't be completely representative of all finger and hand types - you're best advised to get a bit of an idea in store by trying on actual rings with your partner. The visual size of the diamond and ring can be affected by whether you have thick or thin digits, and also depends on the length of your fingers.

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The apparent size of a diamond is influenced by what it is shown against - the hand - a petite hand will cause the diamond to appear significantly larger and vice versa.

Go searching for diamonds this size at James Allen by clicking on the banner below and dragging the carat slider to the appropriate setting:

Actual Diamond Photos from JamesAllen