Discover the world of NOORDIA pure diamonds and wear ethical diamond jewelry with pride!
All the properties of the diamonds in NOORDIA jewelry are the same as those of traditionally mined diamonds , they are just as beautiful and durable as diamonds formed in nature.
The growth of laboratory-grown diamonds takes place under strictly controlled conditions, which perfectly match the natural formation of diamond crystals.
Currently, diamonds are grown according to two types of processes, one principle is chemical vapor deposition (CVD) and the other is high-pressure, high-temperature process (HPHT) . You can find detailed information about the two processes and their differences under the menu item "Frequently asked questions about NOORDIA diamonds - How diamonds are grown".
After growing, all diamonds must be thoroughly polished to achieve the shape seen in our jewelry. With this method, as well as NOORDIA's instrumental testing, the value, purity and quality of diamonds can be guaranteed.
In all cases, our NOORDIA jewelry is subjected to a thorough instrumental examination , which is followed by professional certification by gem expert Anita Hercsik . We issue a quality certificate for the jewelry inspected in this way, indicating its detailed properties. We give this certificate to our customers when purchasing the jewelry. This method guarantees the value, purity and quality of NOORDIA jewelry.
The authentic origin of our unoccupied diamonds is ensured by certification . Certification is the process during which an independent, internationally recognized laboratory examines the given diamond and issues a certificate of its properties.
The largest independent laboratories dealing with this are IGI and GIA. These organizations also checked the unclaimed NOORDIA diamonds.
A unique identification code is laser-burned into the edge (in professional terms, the rundist) of every diamond they inspect. This microscopic number is unique and officially recorded worldwide. As a result, our gemstones can be easily identified at any time under the appropriate magnification.
NOORDIA jewelry provides diamond lovers with an alternative that allows them to choose responsible luxury and brilliance. We offer ethical and much more environmentally friendly diamonds than mined stones, which may even contain blood and forced labor.
You will find sophisticated jewelry with us, which make the experience of wearing an ethical diamond accessible.
Professional credibility
The quality of the jewelry sold by NOORDIA and the examination of diamonds, as well as our entire professional background, are ensured by jewelry expert Anita Hercsik , who has more than thirty years of experience in the industry and is the author of numerous publications and presentations.
Our jewelry that goes on sale is always subjected to a thorough quality check. This includes checking the material of the jewelry, the safety of the settings, and checking the quality of the diamonds.
All our jewelry and stones undergo a thorough instrumental examination, thus ensuring that only lab-grown diamonds are used in our jewelry. We issue a warranty card based on the results of the inspection and give it to our jewelry.
By purchasing lab-produced diamonds, our customers get the sparkle of a natural diamond. They are ideal for everyday wear or as a birthday or anniversary gift, and since they are manufactured to an exceptionally high quality, you can without a doubt buy our jewelry online.
Frequently asked questions about NOORDIA diamonds
Is lab-grown diamond a new thing?
Diamonds were first grown in the General Electric Co. lab in the 1950s, but they were not yet jewelry-grade stones that could be sold on the market. Only in the last few years have we been able to produce large, jewelry-quality diamonds that match or surpass natural diamonds in terms of desirability and beauty.
So laboratory-grown diamonds are not a new phenomenon, their industrial use is wide-ranging, and they have only recently become available for jewelry making.
How long does it take to produce a lab-grown diamond?
Depending on color and size, it takes 30-60 days to produce a diamond.
How are diamonds grown?
All lab-grown diamonds are grown by placing a diamond core in a heat and pressure chamber that reproduces the natural diamond formation process.
Growing diamonds is extremely difficult, because you have to create the special conditions that lead to the formation of diamonds in the depths of the earth.
A tiny slice of a Type IIA diamond is placed in a chamber where they can ensure long-lasting, stable, high temperature and pressure. As a result of crystallization, laboratory diamonds mature within six to ten weeks. They are then cut, polished and graded by the same world-renowned laboratories that also certify natural diamonds.
The two techniques most commonly used by laboratories are:
Chemical Vapor Deposition (CVD)
The diamond slice is then subjected to a process called chemical vapor deposition (CVD), where the crystals grow layer by layer in hot plasma. The result is a real rough diamond with all the natural properties of a mined diamond. The CVD process uses ultra-pure, carbon-rich gases in a controlled chamber. Carbon-based gases, such as methane, are heated until they disintegrate and the carbon atoms in them are separated.
These tiny carbon atoms fall onto the diamond substrate and form layers, resulting in a rough diamond crystal. This process takes six to ten weeks and results in gem-quality Type IIa diamonds.
In recent years, CVD research has become increasingly popular, and modified versions of CVD are now being used. These processes differ in how they initiate the chemical reactions. Some of these are:
- Low Pressure CVD (LPCVD)
- Ultra High Vacuum CVD (UHVCVD)
- Plasma Assisted Chemical Vapor Deposition (PECVD)
- Microwave Plasma Vapor Deposition (MPCVD)
High Pressure High Temperature Process (HPHT)
The HPHT process mimics the natural diamond growth environment found deep within the Earth. The machines used are capable of creating pressures of nearly 60,000 atmospheres and temperatures of 2,500 degrees Celsius.
The growth cell contains all the elements needed to grow a diamond, including a core, refined graphite, and a catalyst mixture of metals and powders. The cell is placed in the center of the HPHT chamber. At a constant temperature and pressure of more than 50,000 atmospheres, the catalysts first respond to the added heat and pressure, changing from a solid state to a molten form.
The molten catalyst solution causes the graphite to dissolve in the cell. Once all the necessary conditions are met, the cooling process begins. This process takes several days and allows carbon atoms to build on the nucleus. The cell is removed from the HPHT machine after the growth cycle is complete. The new rough diamond is extracted and cleaned in preparation for final cutting and polishing.
The entire HPHT growth process requires a highly controlled environment to produce gem-quality diamonds. Any changes during growth can stop the diamond from growing or create inclusions that result in unusable diamonds. Every diamond must go through its entire growth cycle. Only after opening the HPHT chamber can we see the finished rough diamond, its color, clarity and size.
In the HPHT process, three main devices are used to provide the necessary pressure and temperature to produce laboratory diamonds:
- Bar press
- Belt press
- Cube press
What is a Type IIA diamond?
The world's most famous and most brilliant natural diamonds are all type IIA. Koh-I-Noor, Krupp, Regent and Southern Star all fall into this category.
Only the best 1-2% of mined diamonds can be called Type IIA. Of all diamonds, they are the purest and have the best thermal conductivity. As natural diamonds rise from the depths towards the earth's surface, they are usually deformed or imperfectly formed, picking up certain impurities.
Type IIA stones are almost completely free of these imperfections and deformations. All diamonds we sell are type IIA.
Does the diamond tester test positive for lab-grown diamonds?
Yes, these are real diamonds. Their composition is pure, crystalline elemental carbon. NOORDIA gems pass all the tests used to certify diamonds.
What are the 4Cs?
4C is a concept known to many:
1. Colour, the color;
2. Clarity, purity;
3. Cut, grinding;
4. Carat, the carat weight.
But how important is it in pricing?
The diamond industry determines the price based on the Rapaport Diamond Report ® price list. The basis of the Rapaport list is the perfect brilliant polish. It can be observed that the price increases exponentially depending on the weight and purity. Apart from the weight, the color and inclusion class of the diamond is an important factor.
Why are mined diamonds more expensive than lab grown diamonds?
The mined diamond passes through the hands of at least 5 dealers from the mines to the customers, so this keeps its price constantly high.
On the other hand, laboratory-grown diamonds are ordered directly from the manufacturers. The short supply chain primarily explains the lower price, and of course the mining costs do not increase the price of the gems either.
