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).
1 Carat Diamond Studs
Just like a one carat diamond is a classical size for an engagement ring, a set of diamond stud earrings with a total diamond weight of one carat is also an often sought-after earring size.
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A set of diamond studs with a total diamond weight of one carat will obviously have to diamonds each of approximately half carat in weight.
The approximate diameter of a round 0.5 carat diamond is 5 mm. This is a good price point for buying diamond studs as if you go up to a total diamond weight of two carats, the diameter of each diamond only goes up to a little over 6 mm.
A typical price for a set of one carat diamond studs is around $1500-$3000, depending on where you buy them from an depending on the quality of the diamonds.
For example, a one carat total diamond weight set of studs from James Allen set in 18 carat white gold with H or I colour, SI clarity diamonds will set you back about $1850 US.
You may be able to find a cheaper pair of one carat diamond studs in stores or at a website like Amazon. But be careful - when I found some on Amazon, I found that the colour and clarity of the diamonds were severely lacking. Another tool at your disposal is reading the reviews posted by people who have already bought the product - use them to your full advantage.