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 Size of a 1.65 Carat Diamond

If you're thinking about how large a 1.65 carat diamond appears on a hand, take a look at this picture to give you an approximate idea. A typical round diamond with a 1.65 carat weight has a diameter of 7.7 mm; bear in mind that this can vary slightly depending on the cut.

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Be careful of reading too much into just a picture - it can't be completely representative of all finger and hand types - you are best advised to get a bit of an idea in store with an actual ring. Do not forget to take into account not just the size of your hand as a whole, but in addition if you possess long and thin fingers or short and pudgy ones. The "first impressions" size of a diamond is influenced by what it is shown against - her hand - a small hand will make the diamond appear proportionately 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