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FAQ

FAQs?

Regular Questions & Answers Presented Here

Our collection of lab grown diamonds are available up to IF in clarity, D in color, Ideal in cut, with large carat weights in all shapes, including round, rose, emerald, cushion, oval, oval rose, heart, princess, trillion, and radiant. Limited quantity fancy colors are available in yellow, blue, pink, and green and fancy shapes such as triangle and hexagon.

We can not speak to other companies’ lab created diamonds, however, our grown diamonds are created in highly controlled and technologically advanced environments, where worker safety and welfare is a priority, by employees being paid a fair and competitive wage.
By not mining diamonds, we are preserving indigenous communities and the earth while protecting workers from unsafe and threatening conditions. MiaDonna goes one step further by using our profits to positively impact the lives and land that have been negatively affected by the diamond mining industry.

No. A lot of people think we can program the process to create a specific diamond grade and carat size that are the same each time, but we can’t. We are simply putting the right conditions together but then nature takes it from there. Just like with earth-mined diamonds, there will be variances in color, clarity and carat size.

Buying an engagement ring or diamond, regardless of origin, with the intent to sell it in the future is not a good investment. Many traditional jewelers tell consumers that lab-created diamonds have little to no resale value, but this could not be further from the truth. Most earth-mined diamonds have resale value, and most lab-created diamonds will have a similar resale value as well. Regardless of origin, either man-made or mined, all diamonds are priced using an internationally accepted pricing system. This system is known as the Rapaport pricing method. Resale values are based on a percentage of the rapaport pricing method.

MiaDonna laboratory made diamonds are indistinguishable from earth mined diamonds, even under a microscope, according to the Gemological Institute of America.

Most people only think of just the 4’cs when judging the beauty of a diamond. However, there are also Types of diamonds. Type la, llb and Type IIA, llb. In the past, we haven't talked too much about the different types of diamonds because the superior Type ll has been unattainable to the majority of the population...until now!

All MiaDonna lab created diamonds over 0.5ct are graded the same way earth mined diamonds are and come with a grading certificate from either the International Gemological Institute (IGI) or Gem Certification & Assurance Lab (GCAL).

Chemical Vapor Deposition, or CVD, is a process used to create gem-grade diamonds as well as optics and semiconductors. The CVD process uses ultra-pure carbon-rich gasses in a controlled chamber. Carbon-based gasses, such as methane, are heated until they break apart allowing the carbon atoms within the gas to separate. These tiny carbon atoms fall onto a diamond substrate and build up layers resulting in a rough diamond crystal. This process takes between six to ten weeks and yields gem-grade Type IIa diamonds.
In recent years, CVD research has gained popularity and now modified versions of CVD are being used. These processes differ in the means by which chemical reactions are initiated. Some of these variations include:
  • Low-pressure CVD (LPCVD)
  • Ultrahigh vacuum CVD (UHVCVD)
  • Plasma-enhanced chemical vapor deposition (PECVD)
  • Microwave Plasma Vapor Deposition (MPCVD)

Unlike earth mined diamonds, our lab grown diamonds are created without negatively harming native communities, society or the Earth. According to the 2014 Frost & Sullivan report, "lab grown diamonds are seven times less impactful to the environment than mined diamonds, use significantly less resources and emit a fraction of the air pollution."

High-Pressure High-Temperature, or HPHT, recreates a diamond's natural growing environment found deep within the Earth. The machines used have the ability to build up the pressure of almost 60,000 atmospheres and temperature of 2,500 degrees Celsius.
The growth cell contains all the elements needed to grow a diamond, including a seed, highly refined graphite and a catalyst mixture consisting of metals and powders. The cell is placed in the center of the HPHT chamber. Consistent temperatures reaching 1,300 degrees Celsius and more than 50,000 atmospheres of pressure are applied. The catalysts inside the cell are the first to react to the added heat and pressure and change from solid to molten form.
The molten catalyst solution causes the graphite within the cell to dissolve. Once all the required conditions are met, the cooling process begins. This process takes place over several days and allows the carbon atoms to build upon the seed. The cell is removed from the HPHT machine once the growth cycle is complete. The new rough diamond is extracted and cleaned in preparation for final cutting and polishing.
The entire HPHT growing process requires an incredibly controlled environment to produce a gem-quality diamond. Any shift or change during growth can cause the diamond to stop growing or can create inclusions that result in unusable diamonds. Every diamond must complete the entire growth cycle before the machine can be opened. It is only after the HPHT chamber is opened that we can see the finished rough diamond and its color, clarity, and size.
Within the HPHT process, there are three primary tools used to supply the pressure and temperature necessary to produce lab-created diamonds. These are:
  • Bars Press - The Bars Press is the most effective tool used for producing gem-quality diamonds. It uses a combination of inner and outer anvils to apply hydraulic pressure to the growth cell.
  • Belt Press - The Belt Press is the founding technology behind growing diamonds. It can be large and produce several diamonds in only one cycle by using two large anvils that press together to create the necessary pressure. It is capable of producing gem-quality diamonds but is most commonly used to produce diamonds and diamond powder for industrial purposes.
  • Cubic Press - A Cubic Press can be large in size and uses six separate anvils to create the necessary pressure for diamond crystal growth. It is also used to create diamond powder for industrial purposes.

There are many ways to tell the difference between a fake diamond and the real thing. Turns out, the definition of a real diamond is not linked to origin (earth vs lab), but rather by its characteristics. Lab created or man made diamonds have been created replicating the earth's natural process, and will pass a diamond tester because of their identical characteristics.

Lab created diamonds are 100% pure crystallized carbon, which makes them optically, chemically, and physically identical in every way to an earth-mined diamond.
Cubic zirconia (CZ) is made of synthetic zirconium dioxide in its crystalline form and is commonly used as a low-cost alternative to a mined diamond; it has absolutely no presence of carbon diamond bonds in its creation, it is simply a crystal cut in a way to mimic the look of a diamond. The lack of crystallized carbon is why CZ differs chemically, physically, and optically from an earth mined and lab created diamond.

Yes, these are real diamonds, which are pure crystallized carbon. Lab created diamonds will pass all tests used to confirm a pure carbon diamond.

MiaDonna lab grown diamonds are available in a variety of trendy colors.

WHITE LAB GROWN DIAMONDS


The most common diamonds are white diamonds and are graded on the lack of color present. White lab grown diamonds are 20%-40% less than their earth-mined equivalents.

YELLOW LAB GROWN DIAMONDS


Both mined and lab grown diamonds get the yellow color from nitrogen. Once light enters the diamond, the nitrogen will reflect back yellow light. Yellow lab grown diamonds cost up to 75% less than their earth-mined equivalents.

BLUE LAB GROWN DIAMONDS


Coming in colors ranging from fancy light blue to fancy intense blue, both mined and lab grown blue diamonds get their color from boron. Blue lab grown diamonds cost up to 90% less than their earth-mined equivalents.

PINK LAB GROWN DIAMONDS


Earth mined pink diamonds are the most rare color available and also the most expensive. Pink lab grown cost up to 95% less than their earth-mined equivalents.