Your cart
Close Alternative Icon

Buyer’s guide

GIA Certificate

All of our diamonds over than 0.3 carats are accompanied by a third party certificate conducted by GIA. GIA’s commitment to protecting diamond buyers inspired the Institute to create the Diamond 4Cs and the International Diamond Grading System™. These methods are the universal benchmarks by which all diamonds are judged. As the birthplace of these standards, and with its investment in continued gemological research, GIA’s authority is unequaled. Different laboratories will not grade a diamond in the same standard. We have decided to work with GIA since they are the most respected and well established in the business.

For example, some laboratories grade a GIA, I colored stone as H which makes it complicated for you as a customer to compare and make the right decision. Some other institutes could be wrong on several stages in their grades, color, or clarity for example. GIA is the global standard diamond organztion  that grade more rigorously than other labs. They are incredibly consistent and provide the greatest peace of mind when purchasing any diamond. All our certificates can be validated through an online service provided by the laboratories.

If your diamond is certified it has a laser engraving on its girdle with its unique certificate number. This is impossible to see with the naked eye and you need a magnifying glass with 10-20x magnification to be able to decipher it.

You can easily for finding us on GIA retailer: 

Diamond and  "The 4 C's".

When grading a diamond we speak about four parameters - cut, carat, clarity, and color. These are termed as "The 4  C's". It is very important to know the quality of your diamond, so 4C s can help you very much. 

All our diamonds are authentic, followed by a GIA-certificate that shows that they are real. Additionally, the stones are examined both by us and our partners before they reach the customer. You can find more information about ‘Diamond’s 4cs’ through


Cut quality is the factor that fuels a diamond’s fire, sparkle, and brilliance. The allure and beauty of a particular diamond depend more on cut quality than anything else. The quality of the cut is crucial to the diamond's final beauty and value. A well-cut diamond will appear very brilliant and fiery, while a poorly cut diamond can appear dark and lifeless, regardless of its color or clarity. Therefore we recommend you to get the best possible cut within your budget. The leading diamond laboratory GIA has created a cut scale ranging from Excellent (ideal) to poor for standard round brilliants cut diamonds.

We offers diamonds’ cut grade from excellent to good.


Diamond color

Diamond color Is an important characteristic that affects a diamond’s beauty and price. So it is an important consideration when buying a diamond. The Gemological Institute of America (GIA) color scale is the industry standard for diamond grading. The GIA diamond color grades range from D (colorless) to Z (light yellow or brown).

  1. F: Colourless diamonds, the rarest and highest quality with a pure icy look. They are much rarer than others which is why they come with a higher pricing premium.
  2. H: Near-colourless diamonds, no discernible color; great value for the quality. H graded diamonds are often considered on the border between premium colorless and tinted diamonds and therefore offer great value without any visible yellow or brown tint unless compared side by side with a whiter diamond.

I-J: Near-colourless, slightly tinted. If you are looking to maximize your budget, then I-J colored diamonds offer great value for money.

K: Faint color diamonds, slightly tinted. Budget-friendly pick; pairs beautifully with yellow gold.

We offers white diamond color grade only from D to K.

We do not recommend color grades L-Z due to noticeably yellow or brown tinting which do not meet the quality and value standards at HONN.

Colored Diamond Grading

While the vast majority of diamonds fall in the D-to-Z color range, nature occasionally produces diamonds with a naturally occurring blue, brown, pink, deep yellow, or even green hue. The geological conditions required to yield these colors are rare, making diamonds with distinct and naturally occurring shades scarce and highly prized.

GIA describes color in terms of hue (the actual color  – i.e., red, blue, green, or anything in between), tone (the relative lightness or darkness of the color), and saturation (how strong or weak the color is). The hue chosen is modified by a “Fancy-grade” term, such as Fancy Light, Fancy, Fancy Intense, Fancy Deep, Fancy Vivid, or Fancy Dark, which describes the combined effect of tone and saturation.

In the Fancy Color market, only one thing matters – the quality of the diamond’s color. So, in reality, the cut is important for Fancy Colors. But it’s a cut that brings out the stone’s color which matters and not the cut which maximizes symmetry and light return. And most often, these two approaches are diametrically opposed.


We offers coloured diamond, and color grades are from fancy deep to fancy light.


Are diamonds graded as Zs considered fancy-color?

No. Naturally colored diamonds outside the normal color range are called fancy-color diamonds. The FTC provides no guidelines for the use of the term “fancy-color” in the US, but there is general agreement in the international trade about what diamond color range is customary for fancy-color diamonds. These are either yellow or brown diamonds that have more color than a Z master stone or they exhibit a color other than yellow or brown.

Diamond Clarity

Diamond clarity refers to the absence of inclusions and blemishes. The clarity can significantly impact a diamond’s value

Evaluating diamond clarity involves determining the number, size, relief, nature, and position of these characteristics, as well as how these affect the overall appearance of the stone. If you are trying to determine what is your best clarity for a diamond, remember that no diamond is perfectly pure. If you want to get the best value for your money, is to have an eye-clean diamond. But the closer it comes to purity, the better its clarity.

HONN offers diamond clarity grades from FL to S2.

The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.

Flawless (FL) No inclusions and no blemishes visible under 10x magnification. Less than 1% of all diamonds are FL clarity. A flawless diamond is incredibly rare because it’s nearly impossible to find a diamond 100% free of inclusions.

Internally Flawless (IF) No inclusions visible under 10x magnification. Less than 1% of all diamonds are IF clarity. Visually eye-clean.

Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification. VVS clarity is rare and results in an eye clean appearance. Great value and they are HONN’s most popular diamond clarity.

Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification but can be characterized as minor. You can be sure that they’ll always be EYE CLEAN so VS clarity diamonds offer great value for money. A choice of VS or higher are much rarer and therefore command greater pricing premiums, and also tend to perform better as an investment.

Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification. A part of this clarity has some form of visible inclusion or blemish to the naked eye. So it is important your selected diamond is eye clean, which will be a budget-friendly pick.

Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brilliance. I1 is the last clarity grade where eye-clean diamonds exist, but not all of them. I2 and I3 diamonds are never eye-clean. Due to the high level of inclusions here, we do not recommend this clarity grade for diamond jewelry.

Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. To the naked eye, a VS1 and an SI2 diamond may look exactly the same, but these diamonds are quite different in terms of overall quality. This is why expert and accurate assessment of diamond clarity is extremely important. Knowing what diamond clarity truly means helps you understand the factors that contribute to diamond quality and price.

More information about diamond inclusions

Types Of Diamond Inclusions



Crystals or minerals




Internal graining


Types Of Blemish Examples

Polish lines






Dark or light spots



The diamond carat weight measures a diamond’s apparent size. To put it simply, diamond carat weight measures how much a diamond weighs. A metric “carat” is defined as 200 milligrams or 0.2 grams. Each carat is subdivided into 100 ‘points.’ This allows very precise measurements to the hundredth decimal place.

When comparing similar diamonds try to look at the measurements. Some diamonds with similar weights can vary significantly in measurements. So, by choosing a better cut, your diamond appears larger and seems to have more carat weight. 

All else being equal, diamond price increases with diamond carat weight because larger diamonds are rarer and more desirable. However, two diamonds of equal carat weight can have very different values (and prices) depending on three other factors of the diamond 4Cs: Color, Clarity, and Cut.

While now you know what carat means, it’s also important to remember that a diamond’s value is determined using all of the 4Cs, and not just carat weight.

HONN offers diamonds from 0.2 carats and we have no upper limit.

What are “magically sizes”?

Some weights are considered “magically sizes” – half a carat, three-quarter carat, and carat. Visually, there’s little difference between a 0.99-carat diamond and one that weighs a full carat. But the price differences between the two can be significant.

Diamond carat size chart

How to choose a diamond?

You’ve read our introduction of diamond 4Cs - cut, color, clarity, and carat. There are a number of factors that can help you decide which 4C grade is right for you. Please let us give you some advice on how to choose a diamond that can make you own the most brilliant gem without paying for a premium!


The cut is possibly the most important of the 4Cs.

Cut quality directly impacts the diamond’s beauty and brilliance. A poor cut will make any diamond look lifeless. An excellent cut, however, will make your diamond sparkle and scintillate in the most mesmerizing way. That’s why HONN only offers diamonds’ cut grade from excellent to good and we recommend you to get the best possible cut within your budget. 

Eye-Cleanliness is Paramount

The term “eye clean” means that the diamond’s inclusions are too small to see without magnification. If you want to get the best value for your money, is to have an eye-clean diamond. Any diamond with FL, IF, VVS1, VVS2, and VS1 clarity grades are guaranteed eye-clean. Clarity grades from VS2, SI1, and SI2 can be eye-clean. Therefore we recommend you never choose I1-I3 clarity grades. If you are buying a diamond over one carat or considering certain fancy-shaped diamonds, we recommend you to choose a higher clarity grade within your budget, because the larger the diamond, the easier it is to see inclusions. If you want to maximize your budget, we recommend you can start your search with VS and SI grades because inclusions will not be readily noticeable without magnification.

  1. Color for white diamond, we do not recommend color grades L-Z due to noticeably yellow or brown tinting which do not meet the quality and value standards at HONN. Which diamond color is best for you it starts with your budget. Colour Is more visible in large diamonds, so if you’re buying a diamond over 1 carat, we recommend H color-grade diamonds or higher. It’s also smart to consider the color of precious metal for your setting that best compliments the colour grade of your diamond. For example, yellow gold casts a warm glow and looks best with diamonds with faint colour. White gold will make a near-colorless diamond look icier. Therefore, we recommend you to buy a D-H colored stone if you want to use it in a white gold setting and a D-K if you are going to put it in yellow gold or rose gold setting. 
  2. Diamond Color for Fancy Shapes. The round cut is the shape that’s least prone to showing off body color. Princess, emerald, and Asscher cut diamonds are more likely to display some. So, it is advisable to choose one grade higher than what you would choose for a round cut diamond. All the other diamond shapes especially the elongated ones like oval, marquise, and pear cut diamonds are even more prone to body color. In these shapes, color can be easily seen near the pointed tips. Thus, you would have to choose an even better grade.
  3. Color of Fancy diamond.  Only 1 in every 10,000 diamonds possess natural colour, and the more intense the colour, the rarer and more valuable the diamond. Colour intensity, the deepness or richness of colour, is the most important consideration when purchasing a coloured diamond. The more intense the colour, the rarer and more valuable the diamond will be
  4. Carat and Cut. By choosing a better cut, your diamond appears larger and seems to have more carat weight. Fancy-shaped diamonds can appear larger than their actual diamond carat weight size, especially when placed in a halo setting, and they are generally less expensive than an equivalent round diamond. If you want to maximize your budget, we recommend you to select a carat weight slightly below the whole and half-carat marks. For example, instead of a 1-carat diamond, consider buying a 0.9-carat weight. This will save a considerable amount of money, and a slight difference will never be noticed.