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 1.35 Carat Diamond

If you're wondering how large a diamond with a 1.35 carat weight looks on a hand, here's a picture which provides a visual guide to this diamond's size. You can use the 7.2 mm mean diameter for this 1.35 carat diamond by measuring the length and width of your own finger in order to get an appreciation of what a diamond of this size will look like on your finger. The ring shown in the image is an average-sized size six ring, but bear in mind the ring you get could be significantly larger or smaller.

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You should be aware that image such as this one are just that - only illustrative - female hand sizes can vary hugely. If you've been stressed about the cost of diamonds but still really want one, here is something to cheer you up - the diamonds often appear bigger once put on a woman's hand, especially in cases where her hand is on the smaller side.

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