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).
1.21 Carat Diamonds
Searching for 1.21 carat diamonds? Well, make sure you also use the term "121" point diamonds when you look on the internet using google or other search engines.
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If you're interested in the normal metric weight of a 1.21 carat diamond, it is 242 mg.
In evaluating the value of a 1.21 carat diamond, one thing you can do is work out the precise cost per carat of diamond. Can you tell the difference between a 0.49 and a half carat diamond? Didn't think so. But there can often be quite a significant price difference - so use this fact to your advantage.
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. It's interesting to note that while the small carat diamond (by small i mean one or two carats) may have only been discovered relatively recently, many of the spectacular large diamonds were found many hundreds of years ago, such as the regent diamond of france which was used by two of the king louis's, with a mighty size of 140 carats.
If you're in a store and you've found a ring which you're interested in, but only the total diamond weight is marked, don't hesitate to ask a shop assistant. They should give you the individual diamond weights, and if they don't just walk away - it's not worth your time dealing with unscrupulous sellers.
Carat size is only one that property out of a number that you should be considering. You should also consider a diamond other properties such as cut, because this will have a drastic effect on how well the diamond sparkles.
For me the diamond dawns are set. In rings of beauty. John Townsend Trowbridge .