The brilliance of a diamond has few equals in nature, and its great durability makes it a beautiful choice for a jewel that represents the eternity of a feeling. The quality of a diamond is measured by the 4C's:
The cut is what will make a natural gem get its full potential and brightness, so it must be done by a professional. Although the cut may be a matter of taste (there are even people who like rough stones), what is considered a good cut in the industry is that which allows the diamond to reflect as much light as possible. Sometimes, the stones are cut to make the most of the material possible, but too deep or too thin a cut can cause the light to be lost.
The most sought-after diamond for engagement rings is totally white, but they can come in shades of pale yellow to completely colorless, being more expensive as they are more colorless. The color is measured from Z to D, Z being a pale yellow diamond, going through all the letters clearing more and more, with D being a perfectly white diamond. However, even for the eye of an expert, a diamond in the range from D to J is of excellent quality. Although do not be afraid to go for a Z if yours is yellow!
The carat is a measure of weight, equivalent to 0.2 grams (that is, 1 gram = 5 carats). The weight of a stone is related to the price, which is why it is an important quality to ask. However, we recommend that you choose your precious stones per millimeter, rather than per carat; since factors such as the shape of the cut (square, round, oval, etc.) and the density of the stone can give deceptive results in which a stone with more carats looks small in person. If for any reason you can not see the stone in person, do not forget to ask for the dimensions in millimeters! So you can draw it on its real scale and really know what to expect.
The following table may be useful as a general guide to diamond sizes, although remember, if the cut is deeper or more superficial, the weight may vary and size may differ.
And the other stones? You have to consider that they have different densities, so a carat of diamond is not the same size as a carat of opal, or zircon, or emerald. In the following image we can buy 4 stones of different densities, with what they would measure if they were all in a round cut of one carat. The denser the stone, the smaller it will be by carat, that's why the zircon looks so small next to the opal, despite having the same weight!
Diamonds, like any natural stone, have inclusions: small traces of minerals in the stone. In diamonds, the inclusions are bits of black carbon. The fewer inclusions, the clearer the diamond is considered and the more valued it is. However, it is a matter of taste too, because diamonds with many inclusions (called "diamond salt pepper") have a lot of personality.
While the industry presents the perfect diamond as a perfectly clean, white and transparent, the truth is that the perfect diamond is the one you like the most. I present some diamond options that have the same strength properties, but with a totally different appearance.
Salt and pepper diamond
The salt pepper diamond is also a real diamond, with many carbon inclusions that make it look from white with some points to totally black, going through a whole spectrum of shades. The diamonds salt and pepper are great because each of them is unique, since their pattern of coals is like their fingerprint, in addition, they are much more accessible than a white diamond!
These diamonds are all pepper salt; the first with little coal, the next with a little more, until you reach the last, which is practically black.
Diamonds come in many colors, depending on their exact chemical composition. These diamonds are very rare and exclusive varieties, and their quality is measured with the same parameters as a normal diamond: Cut, Carat, Color and Clarity. The difference is that in colored diamonds, it is worth more as the color becomes more vibrant, as opposed to the white diamond, which is worth more as it is more colorless.
Four colored diamonds: yellow, blue, pink and neon green. What is your favorite?