Diamond Certificates (GIA, IGI, HRD)
First of all, let's remember that the quality of a diamond is determined by four main criteria which are "the 4C's"
Carat (diamond weight)
Colour (degrees of white)
Clarity (degrees of purity)
Cut (quality of the cut)
The weight expressed in carats is the factor that most influences the price of a diamond. These two criteria, weight and price, usually precede the choice of quality.
We recommend considering each diamond in its entirety, the 4C's as a whole, rather than considering it in a piecemeal fashion in an approach that focuses on the individual criteria. The important thing to do when choosing the quality criteria to be favored when buying your diamond online is to ask yourself the right questions and then make the choices and priorities that best suit you.
To begin with, the easiest criterion to choose is the carat weight of your diamond. Depending on your budget, the type of jewelry (ring, pendant, solitaire...) and the style (contemporary, classic...) that you want, you will quickly determine the weight of the diamond that matches these criteria.
Indeed, the weight of a diamond defines its price category. The price evolves exponentially in relation to the weight. The percentage price difference between a 0.30 carat and 0.40 carat diamond is smaller than the price difference between a 0.50 carat and 0.60 carat diamond. By consulting our online catalog, you can search by price range.
The weight (0.30 carat...0.50 carat...1 carat...) also determines the volume of the diamond you will buy. A round brilliant diamond of half a carat has a diameter of about 5.2mm while a round diamond of one carat measures around 6.3mm. The style of jewelry strongly influences the volume and therefore the weight of the diamond to be purchased. For example, a claw-set solitaire requires a diamond with a larger volume than a closed-set solitaire, where the gold material will give a volume effect to the ring without the center diamond necessarily being very large. Or, for earrings, one generally chooses smaller diamonds than the ring size.
The question of the shape of the diamond is intimately linked to your personal taste and the style of the precious jewel desired. Because a heart diamond or a pear diamond is suitable for very specific types of frames. Choosing an emerald cut diamond also means choosing a specific style of frame. The round brilliant cut diamond is, as its name suggests, the shape that gives the diamond the most sparkle. It is also the most classic and timeless. Princess shape diamonds are also very common, especially for wedding rings or ring pavings. Other shapes are more subject to fashion. Currently, the most mediatized shape is the ring with a cushion cut diamond in its center.
Size quality is a parameter of the utmost importance. Indeed, all the magic and rarity of a diamond is to shine. A stone known as "lifeless" is of lesser interest. We recommend that you choose a diamond whose cut quality is rated at least "Very Good" by one of the three most prestigious gemmology laboratories: HRD, IGI, GIA. For those who want the top quality we recommend the "excellent" cut notes that ensure your diamond will have maximum brilliance.
4 Claws Classic
Solitaire diamond with 4 claws, a classic and timeless style. The highlighting of the diamond…
The perfect gift for your ever lasting love. Hand made french jewellery. Gold 750/000. Delivered in…
Pendant & Necklace
4 claw diamond pendant without bail. Forçat chain fixed by 2 rings on each side of the…
Classic diamond wedding ring. 18 carats gold. Made in France. Delivered in a jewellery box. See…
4 CLAWS CRADLE
Handmade diamond earrings, 4 claws heart-shaped cradle setting. Elegant exclusive design by…
Diamond bezel bracelet. Very popular, a style that is both classic and contemporary. 18 carats…
5 Claws Classic
Solitaire diamond with 5 claws. Solitaire offered in 18k white, yellow or pink gold (750/000) or in…
Style full of sparkle without being ostentatious. The dawn of passion and romance. Hand made to…
Pendant & Necklace
3 CLAWS B
Diamond pendant with 3 claws to enhance the stone as much as possible. Crimping carried out with…
A modern style: diamonds are entwined in a crimped said "rail", a very contemporary…
3 CLAWS PREMIUM
Handmade earrings with diamond belt based on mid height of the claws which are based on a rabbet.…
Very modern, bright without being ostentatious. Pleasure of playing with the brilliance of…
The choice of purity and color are matters of personal preference, which can be grouped into broad categories (see below) of people and diamonds:
- Color DEF and Purity IF-VVS: the criterion of choice for the unconditional fans of top quality (the so-called "Collection" quality for diamond dealers) (at the extreme D IF, "simply the best").
- Color DEF and Purity VS-SI: the criterion of choice for aficionados of very white above all, (in the extreme: D the exceptional white+).
- GHI Color and IF-VVS Purity: the purists' criterion of choice (in the extreme: only IF Internally Flawless, pure under the magnifying glass)
- GHI Color and VS-SI Purity: the rational choice criterion of a good balance (best value for money)
- IJK color and Si2-P1 purity: the criteria for choosing "show off" to maximize weight and "cool, relax" on quality
Don't let the term color fool you. There are white diamonds and colored diamonds (yellow, pink, blue ...). For white diamonds, the note of color, between D and Z, refers to shades of white: white goes from colorless (D) to yellow-tinted (from I). We recommend diamonds with a white hue between D (exceptional white+) and H (white) because the whiteness of the diamond increases its brilliance. From I onwards, diamonds are slightly yellow-tinted: avoid on white gold and acceptable within a certain limit on yellow gold. If you wish to have more information on the color of a diamond, you can also consult our article "Diamond Color".
The importance of the purity criterion increases with the weight of the diamond. Indeed, if it is difficult to see an inclusion on a 0.30 carat diamond with the naked eye, it becomes much easier to see it on a 1 carat diamond. The larger your diamond is, the more demanding you have to be on this criteria. Also note that regardless of its weight, we recommend that you avoid choosing a Pique diamond, because inclusions are easily seen with the naked eye, alter the brilliance and can even weaken the stone. The purities included in VS and SI1 are the most recommended purities, unless you have the budget to let yourself be tempted by IF or VVS purities, which sign the diamond in its highest dimension: that of purity.
It is essential to buy a natural diamond that is certified by one of the only 3 gemmology laboratories worldwide: the GIA, HRD or IGI certificate. On the certificate issued by these laboratories, are indicated all the criteria indicated above (carat weight, color, clarity, quality of cut...). Each diamond is unique and has a certification number. This number can also be inscribed on the roundel of the diamond, which attests to the correct match between the stone and the certificate.
Our price catalog of certified diamonds allows you to familiarize yourself with the qualities of cut, white and clarity possible for a given range of weight and price.
Trust is one of the foundations of bonds and alliances.
It makes it possible to dare and to risk.
You don't buy a diamond if there is no trust.
It is not a question of credulity or faith, but of reliability.
To help you choose, we recommend 5 categories of diamonds that correspond to different objectives: Volume (maximizing weight), Balance (compromise weight and quality), Perfection (maximizing quality), Favorite (the i- diamonds), Promotion (one-time price offer).
1) Volume: maximizing the weight of the diamond in relation to its price, color I-J and clarity SI1-SI2
2) Balance: favor a good color / purity balance: F-G / VS1-VS2
3) Perfection: maximizing the quality of the diamond with the best color and clarity criteria: D IF
4) Favorite: diamond selected by i-diamonds for its brilliance, D-E color, VS1 clarity, size criteria all rated “Excellent”, no fluorescence
5) Promotion: 5% promotion diamond
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We recommend the following 5 selections
To help you choose, we recommend 5 categories of diamonds that correspond to different purposes: Volume (maximizing weight), Balance (compromise weight and quality), Perfection (maximizing quality), Cut of heart (the i-diamonds recommendation), Promotion (one-time price offer).
Volume effectmaximize the weight of the diamond relative to its price, I-J color and SI1-SI2 clarity
Choice of balancefavor a good balance of color / clarity: F-G / VS1-VS2
Perfectionmaximize the quality of the diamond with the best criteria of color and clarity: D IF
Favorite's choicediamond selected by i-diamants for its shine, D-E color, VS1 clarity, cut criteria all rated
Promotionsdiamond with a 5% promotion
Carats / Diamond weight
Move the diamond weight slider and view the rendering on a hand, chest or ears.
Equivalence for round brilliant diamonds
Examples of different diamond measures
We recommend diamonds with a white hue between D (exceptional white+) and H (white) because the whiteness of the diamond increases its brilliance. From color grade I and J (slightly tinted) onwards, diamonds are slightly yellow-tinted: avoid on white gold and acceptable on yellow gold.
We recommend that you avoid choosing a Pique diamond, because inclusions are easily seen with the naked eye, alter the brilliance and can even weaken the stone. The clarities included in VS and SI1 are the most recommended , unless you have the budget to let yourself be tempted by IF or VVS clarities, which sign the diamond in its highest dimension: that of purity.
VVSVery very small inclusion(s)
VSVery small inclusion(s)
IF : Pure
No inclusion inside the stone
VVS1 VVS2 : Very very small inclusion(s)
Very difficult to see with a 10X magnifying glass
VS1 VS2 : Very small inclusion(s)
Difficult to see with a 10X magnifying glass
SI1 SI2 : Small inclusion(s)
Easy to see with a 10X magnifying glass and difficult to see with naked eye
P1 P2 P3 : Included
Easy to see with naked eye
When a diamond is well cut, light reflects from one facet to the other, making the most of the diamond's high refractive property. A less well-cut diamond lets some of the light escape.
We advise you to choose a diamond with a quality rating equal to Excellent (EX) or Very Good (VG) to maximize the refraction of light and therefore the diamond brilliance.
Most recognized certificates: GIA, HRD and IGI
We only offer natural diamonds accompanied by a certificate of authenticity and quality issued by one of the 3 most prestigious and world-renowned laboratories: GIA, HRD and IGI. The certificate number is engraved on the girdle (circumference) of all our HRD, IGI and GIA certified diamonds.
The three major diamond certification laboratories HRD, IGI and GIA laser engrave the certificate number on the girdle (circumference) of the diamond. The certificate number is therefore engraved on all our HRD, IGI and GIA certified diamonds. This is a proof of the good match of the diamond and its certificate. The inscription is very small (to preserve the purity of the stone) and very difficult to read with the magnifying glass 10X.
If you order only the diamond (without the jewel), it will be delivered under seal in a rigid plastic pouch (see photo below) for diamonds certified by HRD or by IGI. For GIA diamonds, the seal must be specifically requested in the comments field during the ordering process.
Fluorescence is a luminous effect that some diamonds exhibit when exposed to ultraviolet light. They show visible light, usually blue.
Since fluorescence may in some cases give a milky diamond appearance, prefer a diamond without fluorescence ("None" or "Nil")
None or Nil
Absence of fluorescence
Slight or Faint
Very strong fluorescence
When cutting the diamond, each facet must be polished. If a diamond has no scratches or very minor scratches on the surface, the polish is high. The better the polishing, the more it allows the transmission of light through the different facets of the diamond.
We recommend choosing a polish rated Excellent (EX) or Very Good (VG) to ensure the best finish and shine.
Symmetry describes the symmetrical accuracy of the facets of the diamond in terms of dimensions and angles, as well as the centering of the table and the centering of the breech point of the diamond. A higher level of symmetry creates optimal shine and scintillation.
We advise you to choose a diamond with a symmetry rating equal to Excellent (EX) or Very Good (VG) to maximize the sparkle.
GIA, HRD & IGI certified diamonds
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