Its quite common, and actually quite sensible, to buy an engagement ring, that has a diamond with the largest Carat you can afford, and has excellent Cut, reasonable Colour and reasonable Clarity. Reasonable means, anything around H or I in colour, and anything around SI1 or VS2 in Clarity. VS2 is probably a necessary choice in diamonds above 1 carat in size. Colour and Clarity, provided they are above a certain threshold, are very difficult for people to notice, whereas Carat Size and Cut grade have a major impact on how a diamond appears.
On this page we will cover the following on diamond carat weight:
So, what actually is a Carat? Well it might surprise you to know its a measure of weight and not of size. 1 Carat is approximately 0.2 grammes (0.00705 ounces). Of course, as the weight increases, so does the size. The diagram below shows approximately the relationship of weight to size, for diamonds cut in the traditional round-brilliant shape:
Its very common for people to want a quarter carat, half carat, three-quarters carat or one carat diamonds. These specific sizes are commonly sought after and you can often buy a Diamond Engagement Ring just below those sizes at much cheaper prices. i.e. buy a ring with a 0.9 carat diamond instead of 1.0 carat diamond.
Total carat weight (ctw) is not the same as carat weight (ct):
This is important, because five 0.20 carat diamonds cost a few hundred dollars whereas a single large 1.00 carat diamond would cost thousands: one is much rarer than the other.
We have a number of diamond rings with many small diamonds, and these are not only good value, but actually ideal for people with very active lifestyles, someone who is more conservative or who or who has a job where a more flamboyant design would be simply inappropriate.
Your budget plays a major role in what carat weight you should buy, here is the approximate budget for a round brilliant designer engagement ring with different carat weights:
The above budget amounts are approximate as diamond cut, diamond colour and diamond clarity also play a part in the value of diamond engagement rings.
The size of the diamond has a big influence on the cost of the diamond, larger diamonds being much rarer than smaller ones.
Be more careful with the clarity as the carat weight increases. SI2 Clarity might be ok below 0.75 carats, but above that choose a VS2. Above 1.5 carats choose VS1. Perhaps move up a clarity level if buying a diamonds with large wide open faces, such as princess cut diamonds, emeralds or asschers and even marquises.
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