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).
1.15 Carat Diamonds
Searching for 1.15 carat diamonds? Well, make sure you also use the term "115" point diamonds when you look on the internet using google or other search engines.
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The shallowness of a diamond, which depends on how the diamond has been cut, will affect the relationship between carat weight and diameter of the diamond - because of this reason, 1.15 carat diamonds will only average a width of 6.84 mm, but will not always be precisely this width. The girdle thickness of the diamond plays an important role in determining the apparent size of the diamond - a diamond with an unnecessarily thick girdle will appear smaller than a diamond with a thinner girdle.
Diamond size means both the carat weight of the diamond and the width of the diamond, and the width of the diamond increases at a much slower rate compared to the carat weight of the diamond. God forbid that this should be a problem for anyone, but it may be that the diamond, once it actually put on the fiance's hand, may appear to be too big and unwieldy. Make sure to take this into account when you're shopping around.
My crown is in my heart, not in my head, Nor decked with diamonds and Indian stones, Nor to be seen; my crown is called contentment; A crown it is, that seldom kings enjoy. William Shakespeare .
If you're umming and ahhing about whether to get a diamond or another precious gemstone, a relevant piece of information regarding their carat size is that the stones have varied densities, leading to different sizes for stones of the same weight.
Don't forget to think about other diamond characteristics such as diamond cut, which plays a critical role in determining the amount of light that gets into the diamond and the degree to which the diamond sparkles in light.