Guide to buy pink diamonds

Guide to buy pink diamonds

This diamond buying guide tries pink diamonds to explain what are the key points to consider when investing in this coveted and spectacular gem.   

Diamonds are categorized and valued according to the 4C criteria (in English: Cut, Color, Clarity and Carat): Size, Color, Purity and Weight.

For diamonds greater than 0.50 carats in weight, it is advisable to add a fifth C to the previous 4C criteria, which refers to the Certification where the characteristics of the diamond and its authenticity are detailed.

Here we detail each of the value criteria to invest in some diamonds and not to be wrong.


pink dimond

The size refers to the shape that the pink diamonds acquires when we start the work of cutting and polishing it. Recall that the diamond is the rough stone, it is the pure crystallized carbon as it is found and extracted in the world’s diamond mines.

It begins to acquire value at the moment in which we shape this pink diamonds in the rough, carving it to achieve different formats and enhancing all its natural luminosity. Each shape we give to the diamond has its own denomination .

We can see that the classic and representative image of the diamond in a round and conical shape , is actually a brilliant-cut Diamond . Commonly, in popular language, we directly say BRIGHT. So with the rest of the sizes, all would be DIAMONDS size Marquise / Princess / Baguette / Emerald / Pear / Cushion / Heart.

Carving is the most important factor when buying a diamond . It depends on it that it generates a good flash and that the stone looks properly. Diamonds with excellent qualities have been depreciated for failing in their size. The carver must know all the characteristics of the diamond and be able to carve it in a way that develops all its powers that are in power.   

Here we can observe the journey of light pink diamonds when penetrating the diamond and how different types of cutting affect this process. For example, a very deep cut will cause the light to be lost and a very superficial cut will not make the diamond shine in all its splendor.  
From here we see the importance of the size being excellent or good in the value scale.


pink diamond

The color of the diamond is the next most important feature to consider when buying a diamond. Pink diamonds acquire more value when the color they have is none, that is, when the diamond is completely colorless it is more valuable . If we appreciate yellow tones in diamonds, it means that their quality in the color scale is inferior

When buying diamonds, we must know that everything must go in proportion. If the size is poor and the diamond is colored D, that is, the best, it will not help us. Our jewel will not look like it could and we will be wrongly investing our money. However, if we buy a diamond with an excellent size and with an F or G color it will be a good investment and we will notice that our jewel looks great.


When talking about purity we are referring to imperfections and inclusions that can be found on the outside or inside of our diamond. Defects in the surface of the diamond are  imperfections , and in the internal inclusions . The vast majority are virtually imperceptible to the human eye, being visible less or more easily with a 10X magnifying glass. The less inclusions or imperfections exist in the diamond, the greater the degree it will acquire in the purity scale.

It is important to know that pink diamonds almost all diamonds in the world are imperfect . There are always defects due to imperfection or inclusion. Some examples are:

For inclusion:

  • Feathers
  • Cracks
  • Granules
  • Knots

As with the Color scale, in purity there is a scale that defines the difficulty of visualizing imperfection or inclusion with a 10X magnifying glass . This scale begins with the IF grade (highest degree of purity and very high in price) and ends in I3 (lower purity and economical grade).

The most sold diamonds for their excellent price / purity ratio are the VVS and VS categorized . The denomination 1,2 and 3 refers to the positioning of the imperfection or inclusion within the diamond. The initials VS mean VERY SLIGHT that is very slight imperfections / inclusions visible with a magnifying glass at 10X.

Carat / Weight of the GEMA

pink diamond

There is a widespread error that relates pink diamonds the carat of a diamond to the size of the diamond. No. Carat refers to the weight of the diamond and not its size . Carat is also related to the size of the diamond. A diamond can weigh a lot in carats but because of its size it seems smaller.

Carat, which refers to the weight, have a higher purchase price if they weigh closed measures, that is, if they weigh 0.25ct, 0.50ct, 0.75ct or 1ct . For this reason, the jeweler will advise and try to buy diamonds to sell 0.24ct or 0.49ct weight so that the client invests in the smartest way possible and saves important money. Having a specialized diamond jewelry is a luck for the customer.

Here we attach the relationship between the carat weight and the millimeters in diameter of the diamonds.


The certification is a pink diamonds report prepared by a team of professional gemologists where it is verified that the stone / jewel we are buying is a diamond and contains all the characteristics that we have described in the 4C. This Certificate is delivered together with the piece / diamond as an accreditation of authenticity . This report can be prepared by any gemologist with specific preparation in diamonds.
The most reputable institutes worldwide that certify diamonds are: GIA, HRD and IGI. Buying a diamond certified by one of these laboratories means that its market value will be greater than if it has a certification from other independent Gemological Institutes. However, this does not mean that the rigor of GIA, HRD or IGI when qualifying a diamond are necessarily better than those of other institutes, but that they are more valued in the market for their history, popularity, reputation, etc.

When buying a certified diamond, it is worth assessing whether it is worth paying for certification when we are talking about carat diamonds or low weights. Normally from 1ct of weight it is important to prove a certification from one of these institutes mentioned above. Below this weight, it is not always economically profitable to have certified diamonds although the jewelry should always give pink diamonds the option to certify it if the client wishes. However, trust in jewelry is a fundamental factor when buying a diamond and should be considered as 6C (TRUST) because many jewelry stores sell high quality diamonds without certification, with the intention of offering its customers an attractive price. But as we have indicated, from a certain weight it is practically an obligation to have a CERTIFICATION of a Diamond.