“Only 0.01% of diamonds worldwide qualify to be Eternal Flame diamonds”

Eternal Flame diamonds are evaluated based on 21 parameters in terms of Diamond Quality and Diamond Beauty. These parameters are more stringent than typical diamond grading, making the Eternal Flame a rare and valuable diamond.

Summary

Eternal Flame Diamond Definite Diamond
GIA Certificate (Diamond Quality)
18 Adelle Parameters
GemEx Certificate (Diamond Beauty)
21 Adelle Parameters

Eternal Flame Diamond






Eternal Flame diamonds are accompanied by two certificates from two well-known institutions in the diamond industry, GIA & GemEx. GIA evaluates a diamond by its quality while GemEx asses a diamond by its beauty. This is what makes the Eternal Flame diamond looks beautiful inside out.

No Parameter Diamond Specification
1 Laser Inscription YES
2 Colour F & Up
3 Clarity VVS Up
4 Cut Excellent
5 Polish Excellent
6 Symmetry Excellent
7 Fluorescence None
8 Table Size (%) 56 - 60%
9 Total Depth (%) 58 - 62.6%
10 Crown Angle 32.5 - 36o
11 Crown Height (%) 13 - 16%
12 Pavilion Angle 40.6 - 41.8o
13 Girdle Thickness THN - STK
14 Girdle Thickness (%) 2.5 - 4%
15 Star Facet Length (%) 50 - 55%
16 Lower Girdle Facet (%) 75 - 80%
17 Culet None
18 Clarity Characteristic IF (Polish Line)
VVS max 2
(Pinpoint, Feather, Needle, Cloud)
19 Fire High - Very High
20 Brilliance High - Very High
21 Sparkle High - Very High
Why is GemEx certificate matter?

GIA does not evaluated a diamond based on its light performance, therefore GIA does not guarantee that the diamond you have has a good light performance. A perfect diamond is not only judged by its quality, but also by its beauty. Adelle Jewellery conducts research to find the most ideal diamond quality requirements with GIA standards for customers in terms of value and brilliance. Through this research we found 10 parameters as our standard in choosing the Definite diamonds.

Definite Diamond

Adelle Jewellery conducts research to find the most ideal diamond quality requirements with GIA standards for customers in terms of value and brilliance. Through this research we found 10 parameters as our standard in choosing the Definite diamonds.

No Parameter Diamond Specification
1 Laser Inscription YES
2 Colour F & Up
3 Clarity VVS Up
4 Cut Excellent
5 Polish Excellent
6 Symmetry Excellent
7 Fluorescence None
8 Table Size (%) 56 - 60%
9 Total Depth (%) 58 - 62.6%
10 Crown Angle 32.5 - 36o
11 Crown Height (%) 13 - 16%
12 Pavilion Angle 40.6 - 41.8o
13 Girdle Thickness THN - STK
14 Girdle Thickness (%) 2.5 - 4%
15 Star Facet Length (%) 50 - 55%
16 Lower Girdle Facet (%) 75 - 80%
17 Culet None
18 Clarity Characteristic IF (Polish Line)
VVS max 2
(Pinpoint, Feather, Needle, Cloud)

Adelle Parameter

1.
Laser Inscription
Each Eternal Flame diamond has a different identification number. This identification number is lasered on the diamond girdle and can also be found on the GemEx certificate.

The numbers on the diamonds are invisible to the naked eye and can only be read using a magnifying glass. This number does not affect the quality or light performance of the diamond. The laser inscription indicates that a diamond has the same information as on the certificate.
 
2.
Color
Color determines the value and price of a diamond and has a significant impact on its appearance. Adelle eternal fire has the best diamond color (colorless) which is included in the D-E-F category. Diamonds in this category are rare and have a high value.
3.
Clarity
Clarity affects the appearance of a diamond. The clearer a diamond, the rarer and higher the value of the diamond. Adelle Eternal Flame has the best clarity,  IF - VVS2. Inclusions in VVS stones are not easy to detect, even at 10x magnification.
4.
Excellent Cut
Diamonds are known for their ability to reflect light and a diamond's cut determines how much light the stone reflects. A well cut diamond will reflect more light and have excellent visuals. 

Adelle Jewellery's diamond is "Excellent Cut" grade which makes the diamond look perfect at every angle so that it reflects light well.
5.
Excellent Polish
Once cut, the diamond will be polished so that the surface is smooth, clear, and glowing. The quality and results of this work determine the grade of "diamond polish" of a diamond. Gemologists rate diamond polishing results in several categories:

Adelle Eternal Flame is in the excellent polish grade.
 
6.
Excellent Symmetry
Diamond symmetry refers to the precision of the shape, line, placement, and alignment between the facets of a diamond. The symmetry of the diamond affects the beauty of the diamond shape and how the diamond reflects light. Gemologists assess a diamond's level of symmetry according to the following grades:

Adelle Eternal Flame is in the excellent symmetry grade.
7.
Fluorescence
Fluorescence is the characteristic that makes diamonds emit a bluish glow when exposed to ultraviolet light. The cloudier and less clear a diamond is, the stronger the blue light it produces. Eternal Flame is a diamond without fluorescence so it looks clear.
 
8.
Excellent Proportion : Table Size
Each Adelle Eternal Flame has anatomy with a tighter range than the GIA proportion parameter. This is what makes the Adelle Eternal Flame reflect light perfectly.

Table Size : 56 - 60%
9.
Total Depth
Total Depth : 58 - 62.6%
10.
Crown Angle
Crown Angle : 32.5 - 36o
11.
Crown Height
Crown Height : 13 - 16%
12.
Pavilion Angle
Pavilion Angle : 40.6 - 41.8o
13.
Girdle Thickness
Girdle Thickness : THN - STK
14.
Girdle Thickness (%)
Girdle Thickness : 2.5 - 4%
15.
Star Facet Length (%)
Star Facet Length : 50 - 55%
16.
Lower Girdle Facet
Lower Girdle Facet : 75 - 80%
17.
Culet
The culet of a diamond is the small, pointed area where the facets of the diamond meet at the bottom of the pavilion. Adelle Eternal Flame does not have a culet (none), which makes it look perfect because it does not have a black dot in the center when seen / observed from above
 
18.
Clarity Characteristic
Each Eternal Flame diamond has a different identification number. This identification number is lasered on the diamond girdle and can also be found on the GemEx certificate.

The numbers on the diamonds are invisible to the naked eye and can only be read using a magnifying glass. This number does not affect the quality or light performance of the diamond. The laser inscription indicates that a diamond has the same information as on the certificate.
19.
LIGHT PERFORMANCE
Light performance is the ability of diamonds to refract and reflect light. Light performance affects the beauty of the diamond. The higher the light performance of the diamond, the more beautiful the reflection of the light. Adelle Eternal Flame has a minimum standard of 3 high for fire, brilliant, and sparkle.

Fire

When the light shines on the diamond, you will see colorful light reflected from the diamond. This color light is called the fire of a diamond.
20.
Brilliance
Brilliance is the first thing you can see in a diamond. Gemologists define brilliance as the white light that is reflected when a diamond facet is exposed to light.
21.
Sparkle
When a diamond is moved under light, the light enters and reflects the luster of the cut and facets of the diamond. This is called the sparkle of a diamond.

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