2014年5月16日 星期五

Difference between 1.00 vs 1.01 cts diamond

Quite a number of customers often ask the question of what weight of diamond should I buy as an engagement diamond? Most men (and ladies) would agree that a one carat diamond is typically the ideal and most commonly purchased weight of diamonds for engagement purpose. Some women may choose to say that the value of an engagement diamond should be equivalent to three months’ salary of the gentleman, and that may mean a 0.50 carats (50 points) to 10 carats. So what’s the ideal, or what’s the standard for choosing a properly weighted engagement diamond without blowing your budget?

We would have to say that a one carat is the typical standard, taking into account the varying levels of income from all professional disciplines of gentlemen. When we say one carat, we actually mean 1.01 carats instead of 1.00 carats. Let me put it in easy terms for you. Carat is the unit used to calculate the weight of a diamond. One carat weighs about 0.02 grams (which can weigh lighter than a feather!). There are 100 points in one carat, so if a diamond is less than a carat, it would be put in the term of say, 70 points, being the equivalence of 0.70 carats.

Let’s not get carried away by the numbers and refocus on the topic of the day – should you choose a diamond that weighs 1.00 carats or 1.01 carats? If you are new to diamonds (or have never purchased a diamond before), you would think that going for a 1.00 carat diamond is sufficient enough for an engagement ring. However, gemologists think otherwise. We would never purchase in a round diamond that weighs 1.00 carats. This is because even though diamond is the toughest substance on earth, it also has a weakest link, which is its culet (the tiniest point in a diamond). The culet is easily prone to chipping or scratching when the diamond is scratched against another diamond or even other precious metals.  In the unfortunate or accidental situation where a 1.00 carat diamond is chipped due to improper handling by unexperienced craftsmen during setting, the weight of the diamond would fall to 0.99 carats which renders its value to significantly drop. Your investment and the value of your family’s first asset would go to waste instantly.

It is true that the value of 1.00 carats diamond is much lower than those of 1.01 carats as only those that weigh 1.01 carats are much more tradable within the diamond market and can within a much higher value appreciation overtime. Usually round diamonds with 1.00 carats have a small diameter (6.3 mm or less) and they look smaller, in comparison to those that weigh 1.01 carats (with diameter of 6.35 mm and above). 

Choosing a engagement diamond is not just about the money being put into the wedding, it is building your family’s first asset and extending your family’s wealth to the next generation. Choose a diamond that will last you and your family beyond lifetime is critical and since it will be one of the major investments of your lifetime; why not choose one that with higher quality that can guarantee you with highest rate of return in the long run?

Rendy Ng, A.J.P. (GIA), G.G. (GIA)

Gemologist & Director, Bee’s Diamonds

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