The knowledge and inspiration of GDC (Gem&Diamond Certificate) originated from a project jointly implemented by the three major testing agencies in Canada (GCAL, HKD, GS) and the Materials Department of the University of Toronto in the 1990s, focusing on how to define gemstones and diamonds more scientifically.

At that time, with the rapid development of the industry, in response to the needs of consumers and trade, two questions were raised regarding the testing and production of gemstones and diamonds in the industry. Question one: How to minimize human factors in testing?; Question 2: How the testing standards be applied to the production process to improve product quality?

To address these two issues, the project team has established a project on how to define gemstones and diamonds more scientifically, and has proposed several key concepts in the project: standardization, data, scientific testing, and production process control.

Standardization: The standards of finished products are reflected through limited grading, eliminating overly complex grading processes

Data: All standards can be expressed in data

Scientific testing: Use as many equipment as possible to reduce human error in testing

Production process control: Based on standardization and data, standardized processes are introduced into the processing flow (mainly in the selection of raw materials, polishing and cutting in the later stage) to achieve product standardization and uniformity.

The project team spent ten years collecting data on over one million gemstones and diamonds, and made some progress in all four aspects. In terms of standardization, the concept of Pantone color has been introduced for colored gemstones and diamonds; In terms of digitization, the data expression methods for color, clarity, and cutting have been redefined; In terms of scientific detection, based on standards, the concept of introducing measurable equipment through data such as chromatography and impurity content percentage has been proposed; The concept of providing standards and data to upstream enterprises during the processing process to assist them in the classification, polishing, and cutting of raw materials using equipment.

Although the project has made some progress, due to the random formation process and uncontrollable influence of various impurities in natural gemstones and diamonds, the project has mainly pointed out the direction for the industry in terms of philosophy, and ultimately there are many practical problems that have not been fully solved when it is implemented.

Entering the 21st century, two events have emerged that have had a huge impact on humanity and the industry. The first is the development of artificial intelligence AI, which can help humans process big data better and faster; The second is the emergence of lab diamonds. Through high-tech means and strict control of the production process, standardized products can be produced.

The project team keenly discovered a solution to the original problem and proposed a new product concept called "Lab Intelligence Diamond (Gem)". Under new conditions, the project team has redefined the industry around new product concepts. At present, several executable concepts have been proposed around "Lab intelligence diamonds":

Product standardization:

1. Pantone colors are fully used in color, in line with fashion industries such as clothing, watches, and design

2. Reduce levels and simplify cleanliness, allowing consumers to better understand

Product Data:

1. Establish a standard system in the form of data on product standards, making it clear to consumers

Scientific testing:

1. Based on standardization and digitization, equipment is the main method for product testing

2. Based on big data, introduce artificial intelligence AI for product detection

Scientific production process:

1. Based on product standards, digitization, and artificial intelligence AI big data tools, provide necessary data for manufacturers in the production process, and produce the most satisfactory products for consumers according to the data

2. Introduce the concept of order based production, provide assistance to manufacturers in their production plans through big data analysis and sharing, and reduce waste of production resources

To summarize briefly:

Based on the concept of "Lab intelligence diamonds" and focus on the lab diamonds from high-tech industrial production, we will create a seamless connection from consumer demand to factory production through standardized and data-driven methods, based on standard establishment, testing, and big data sharing. This will achieve a comprehensive leap in the industry and guide the healthy development of the lab diamonds.

The concept of "Lab Intelligence Diamond" has been recognized and supported by the Canadian government and the three major testing institutions. Based on the original project team, the entity GDC (Gem&Diamond Certificate) has been established to achieve the specific implementation of the project.

For the development of lab diamonds globally, GDC has proposed the following steps:

Step 1: Implement standardization, establish data-driven standards, and provide testing certificates for the industry

Step 2: Introduce artificial intelligence AI to establish a seamless connection from consumers to production

1. Diamond Identification

Methodology:

Using instruments such as infrared spectroscopy, ultraviolet spectroscopy, and electron microscopy, combined with methods such as microscopic observation, to identify cultivated diamonds

Standard:

The physical and chemical properties are the same as natural diamond, both of which are equiaxed crystalline materials composed of carbon atoms. The Mohs hardness is 10, the density is 3.52 (±0.01) g/cm, the refractive index is 2.417, the dispersion value is 0.044, and the characteristic peak of the Raman spectrum is 1,332cm

2. Carat:

Methodology:

Use electronic scales or weighing sensors to measure the weight of cultivated diamonds

Standard:

Carat as a standard weight measurement, such as 0.34Carat, 2.05Carat, etc

3. Clarity

Methodology:

Observation of cultivated diamonds using optical or electron microscopes

Standard:

Grade I (VVS, diamonds have extremely small internal and external characteristics under 10x magnification);

Grade II (VS, diamonds have small internal and external features under 10x magnification);

Grade III (others, diamond exhibits distinct internal and external characteristics under 10x magnification or visible to the naked eye from the crown, diamonds have both internal and external characteristics).

4. Color

Methodology:

Color scanner

Standard:

Pantone color

And we will continue to use Pantone color as the base to create more color standards, including multiple color lab diamonds

5. Shape

Methodology:

Gem refractometer

Index Standard:

Princess Fang:

Platform width ratio 67% -72%, full depth ratio 64% -75%, aspect ratio 1:1-1.05, no bottom tip, with 76 cutting surfaces;

Pear shaped (teardrop shaped):

Symmetrical wings on both sides, desktop located in the center, with no defects in sharp corners, table width ratio of 53% -63%, total depth ratio of 58% -62%, aspect ratio of 1.5-1.75:1, no bottom tip, with 71 cutting surfaces;

Radian:

Countertop ratio 60% -66%, depth ratio 59% -65%, aspect ratio 1:1, no bottom tip, with 70 cutting surfaces;

Emerald:

The four corners are of the same size, with strictly parallel lines and surfaces. The platform width ratio is 61% -69%, the total depth ratio is 61% -67%, the aspect ratio is 1.3-1.5:1, the linear bottom is pointed, and it has 62-70 cutting surfaces;

Heart shaped:

Table width ratio 53% -63%, full depth ratio 58% -62%, aspect ratio 0.9-1.1:1, no bottom tip, with 63 cutting surfaces;

Horse eye (boat shaped):

With a width ratio of 53% -63%, a full depth ratio of 58% -63%, an aspect ratio of 1.8-2.2:1, a crown ratio of 11% -16%, symmetrical sharp angles without defects, no bottom tips, and 58 cutting surfaces;

Asche:

Table width ratio 59% -65%, full depth ratio 60% -65%, aspect ratio 1-1.05:1, crown height 11-16%, with 58 cutting surfaces;

Cushion shaped (pillow shaped):

Platform width ratio 58% -63%, full depth ratio 58% -66%, aspect ratio 1-1.05:1, no bottom tip, with 58 cutting surfaces;

Oval shape:

Symmetrical at the shoulders, with a width to width ratio of 53% to 58%, a total depth ratio of 58% to 64%, a length to width ratio of 1.3-1.6:1, no bottom tip, and 58 cutting surfaces;

Circular:

Platform width ratio 52% -62%, full depth ratio 57.5% -63%, crown height 12.5% -17%, no bottom tip, with 58 cutting surfaces

Cutting Standard:

EXCELLENT (EX) Perfect: Almost all incoming light is reflected

VERY GOOD (VG) is very good: it reflects light of standard cutting grade

Good (G): Reflects most of the light that enters the interior of the drill

FAIR (F) is average: it can also reflect light, but its performance is average

POOR (P) difference: If all cutting standards are not met, it means that the cutting is very poor

6. Sustainable Growth

Methodology:

AIDI arranges 3rd party to check and verify

Standard:

(1) Equipment requirements:

The equipment required for producing and cultivating diamonds should comply with relevant international regulations, such as using efficient and energy-saving equipment to reduce energy consumption and environmental pollution

(2) Process requirements:

The production and cultivation of diamonds should comply with relevant international regulations, adopt efficient, energy-saving, green, and environmentally friendly process flow and technical parameters, and improve production efficiency and product quality

(3) Intelligent new productivity:

Green and environmentally friendly energy, ethical production processes, sustainability, the introduction of new technologies such as AI in design, production, cutting and polishing