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).
1.49 Carat Diamonds
A diamond which has a size of 1.49 carats is the same as a 149 point diamond. Each carat in a diamond is equivalent to 200 mg, so this 1.49 carat diamond weighs 298 mg.
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There are three things extremely hard: steel, a diamond, and to know one's self. Benjamin Franklin .
The diameter of a 1.49 carat diamond is approximately 7.47 mm.
Some online retailers provide, amongst other diamond properties, a property called the cost per carat, which gives consumers another way of thinking about the value of a diamond. Another property of the diamond which is important in determining how big the diamond will appear to the naked eye is the girdle thickness of the diamond. A thick girdle well store a lot of the diamonds mass in a place which does not help the diamond appear large.
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. Looking around the internet at online diamond stores, you may be tempted to think that a four or five carat diamond is large. You couldn't be more wrong - the golden jubilee diamond is an example of how big diamonds can really be - it is 545 carats, or a weight of more than 100 g, which is about a quarter of the weight of a can of coke.
Five small diamonds that add up to one carat are generally not as valuable as a single diamond that weighs one carat, so be short not to compare a single diamond of carat weight 1.49 with a ring which has a total diamond weight of 1.49.
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.