Diamonds have a price,
a good advice has none
Iberian proverb
The Lapis Luminis Guaranty
Lapis Luminis advises natural and precious stones enthusiasts by guiding them in their choice towards the determining criteria and the best combinations.
Every main stone is accompanied by its certificate from the Gemological Institute of America (GIA), the foremost gemological grading institute in the world. This document certifies the quality and uniqueness of your stone like a passport.
Furthermore, our teams of gemologists inspect each and every diamond to validate its criteria, brilliance and the fire that animates it.
Our gemologists select
the most resplendent stones
Main diamonds from 0.50 carat
All our gems are natural
All of our stones are ethically sourced
All our diamonds
come with a GIA certificate
Understanding Diamonds in 4Cs
The four main criteria for determining the preciousness of a diamond are its color, clarity, cut and weight. By counseling its clientele judiciously, La Maison advises in the most skillful way to reach its desires and its budget.
Below, we detail how these 4 criteria work, the "4Cs", their scales and the art of combining them.
As a rule of thumb, the higher the criteria are on their respective scale, the more luminous and precious your diamond will be.
Color , Clarity , Cut and Carat are the four main criteria to determine the quality and rarity of a diamond.
Find the combination of those criteria that suits you best
Explore this guide to help you make the best choice
GIA
The Gemmological Institute of America
Since 1931, the Gemmological Institute of America (GIA) has worked to provide a common language for those involved in the diamond market, providing a clear method for determining their quality. This approach aims to protect buyers and sellers who can now rely on the famous 4Cs
The GIA evaluates every stone submitted and issues a certificate. A true diamond passport, this document accompanies every diamond over 0.50 carat offered by Lapis Luminis
Our Maison only deals with GIA certificates, which are the most renowned and recognized in the world. Even within the engagement ring configurator, each project will be accompanied by a GIA certificate attesting the characteristics of the main diamond
Le GIA évalue ainsi toutes les pierres qui lui sont soumises et émet un certificat. Véritable passeport du diamant, ce document accompagne tous les diamants de plus de 0.30 carat proposés par Lapis Luminis.
Notre Maison ne traite qu'avec des certificats GIA, qui sont les plus réputés et les plus reconnus au monde. Au sein du configurateur de bague de fiançailles, chaque projet sera par conséquent accompagné d'un certificat GIA attestant des caractéristiques du diamant de centre.
1. Color Grading
The color quality of the white diamonds that illuminate the High Jewelry pieces is graded on a scale from D to Z. The color "D" signifies that the diamond is colorless and represents the top of the scale. Inversely, the color "Z" represents a yellowish tint, undesirable, and denotes the lowest end of the scale
Lapis Luminis only selecting the most desirable gems, offers in its engagement ring configurator white diamonds of colors ranging from "D" to "H", thereby giving its clientele the assurance of a jewel of the highest quality
Moreover, diamonds can be found in every color of the rainbow, we keep them available to our clientele upon request
The color of the white diamonds ranges from D to Z
The configurator offers the colors D, E, F, G and H ,
Diamonds can come in the whole range of colors of the rainbow,
We keep them at your disposal on request
None of our diamonds have undergone color treatment
The color of the diamond is attested on your GIA certificate
2. Clarity Grading
For all white diamonds, it is necessary to assess their degree of purity. That is, the number, shape and size of impurities in the stone. This scale extends between the grade Flawless without any impurity whatsoever, and I3 (Included 3) which comprises inclusions visible to the naked eye.
Lapis Luminis selects diamonds between the Flawless and SI1 grades to offer in its configurator the assurance of a none to weakly included diamond.
The clarity grades the amount and size of inclusions in a diamond
This scale also applies to fancy color diamonds
The engagement ring configurator offers
purity grades from Flawless to SI1
We advise not to go below the SI1 grade
The clarity rating is listed on your GIA certificate
The Lapis Luminis Approach
The configurator offers 4 optimum combinations of Color and Clarity
Planetary
min H - SI1
Stellar
min G - VS
Galactic
min F - VVS
Firmament
min D - IF
Bespoke
Every combination
available on request
3. Cut - the shape
Brilliant round cut is the most well-known shape of the diamond
There are however several other cuts called Fancy Cuts . All are intended to magnify the passage of light, thus giving the gem its fire
Lapis Luminis offers the choice between 7 diamond cuts in its configurator. This is undoubtedly the principle criterion for creating a jewel that suits you
Although the most sought-after cut remains the brilliant round cut, we notice increasing interest for fancy cuts