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).
1.91 Carat Diamonds
A diamond with a weight of 1.91 carats is equivalent to a 191 point diamond. Carat size does not equate exactly to a certain width of diamond, because the diamond may be short and fat, or tall and lanky, meaning 1.91 carats of diamond will not always be synonymous with 8.12 mm of diamond.
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A way of using numbers to help you compare diamonds is to calculate the cost per carat of diamond.
Counter intuitively, a diamond that is twice as heavy as another diamond is a lot less than twice as big in terms of its diameter.
If you found this page, you probably were searching for something like a 1.91 diamond. The problem is there are thousands of pages with information on 1.91 diamonds, so to narrow down your search try adding other terms such as whether you want a premium, ideal or good cut of diamond.
Diamonds are nothing more than chunks of coal that stuck to their jobs. Malcolm S. Forbes .
If you're considering a number of gemstones, not just diamonds, bear in mind that different types of stone have different densities, so a one carat diamond may appear quite different in size to a one carat emerald. In terms of diamond properties, the carat weight of the diamond should be considered alongside the many other characteristics of the diamond, in order to find a diamond which is balanced and hence not let down by being of poor quality in one of these departments.