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).

Budget Round Shape SI 0.80 Carat Diamonds

Only found two diamonds in this range. The first diamond's a shocker in terms of inclusions (and rated SI2) - there's a huge inclusion at the far right of the diamond, and another few at the middle left. It also has strong fluorescence.

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The second diamond, which is only $10 more, has a small long defect at the center of the diamond which probably isn't easily visible to the naked eye. With the superior cut compared to the first diamond, and being only $10 more expensive, this is easily the pick of the two.

0.83 Carat J Color SI2 Clarity Premium Cut Round Cut Diamond - $1920

Shape: Round

Carat weight: 0.83

Cut: Premium

Color: J

Clarity: SI2

Certificate: GIA

Depth: 61.9%

Table: 60.0%

Polish: Excellent

Symmetry: Good


Culet: None

Fluorescence: Strong

Measurements: 5.99*5.94*3.69

Item number: 1318816

Click here or on the photo to see the diamond at James Allen.

0.80 Carat J Color SI1 Clarity Ideal Cut Round Cut Diamond - $1930

Shape: Round

Carat weight: 0.8

Cut: Ideal

Color: J

Clarity: SI1

Certificate: AGS

Depth: 62.7%

Table: 54.4%

Polish: Ideal

Symmetry: Ideal


Culet: Pointed

Fluorescence: None

Measurements: 5.94*5.96*3.73

Item number: 1303152

Click here or on the photo to see the diamond at James Allen.

Don't forget you can use Engagement Ring Guru's exclusive James Allen discount code "ringgu10" to get 10% off any engagement ring setting. Here are 3 ring setting suggestions that will help get you started in creating your own complete ring using this diamond. You can also click here to search for other ring designs.

Option number 1: 18k White Gold Flat Tab Round Cut Diamond Solitaire Ring setting.

Option number 2: 18k White Gold Diamond Knife Edge Engagement Ring setting.

Option number 3: Platinum 3-Stone Trillion Cut Ruby Engagement Ring setting.