Color is the largest, most important factor in the price of diamonds and it’s probably best to begin by choosing an appropriate color range.
If you demand perfection when buying diamonds then keep to the D to G color grades (D is absolute best). The cheapest diamonds are in the H to M grade bracket and most people will never spot the difference anyway.
The near colorless H through J grades probably won’t even be noticeable to many so called “jewelry experts”.
There is another consideration before buying diamonds – fluorescence. None is good and faint to medium is fine. Avoid strong fluorescence unless it appeals to you, and always make sure that it’s blue fluorescence if it’s listed as medium to strong because in lesser color grades it can actually enhance the diamond.
Ultimately it’s all a matter of taste…..
Which Carat Weight?
Carat weight isn’t easy to label as to what’s best. When buying diamonds just remember that the price per carat rises exponentially with carat weight – every 1/4 carat or so.
Therefore a premium quality 2 carat diamond can cost more than twice what a very good quality 1 卡鑽石 will. Beware of size perceptions when buying diamonds, a 2 carat diamond weighs twice as much as a 1 carat diamond and looks bigger of course, but it doesn’t look twice the size when set in a ring!
Think of a 1 carat round diamond as being about 6.5 millimeters across and know that it’ll look stunning when set into a platinum engagement ring setting.
Value when buying diamonds is attained in the sub 1 carat category between .75 and .90 carats, but don’t forget the last (but not least) of the 4 C’s – Cut.