Lab-Grown Diamonds VS Natural Diamonds

Since lab grown diamonds are made of the same material as mined diamonds, there are no discernible physical, chemical or optical differences between the two. they also display the same hardness on the MOH scale making them a long lasting choice. 

When shopping for diamonds, the provenance of your diamond can be checked on your diamond certificate where it will be stated if your stone is a mined or a lab grown diamond.

Lab-Grown Diamonds VS Natural Diamonds

Since lab grown diamonds are made of the same material as mined diamonds, there are no discernible physical, chemical or optical differences between the two. they also display the same hardness on the MOH scale making them a long lasting choice. 

When shopping for diamonds, the provenance of your diamond can be checked on your diamond certificate where it will be stated if your stone is a mined or a lab grown diamond.

Lab Grown Diamonds

Lab grown diamonds can be created following two different techniques, HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Deposition).

With the HPHT technique, Lab-created diamonds are grown from a tiny carbon seed placed into a chamber of heat and pressure that mimics the natural method of diamond formation. Once the diamond has matured (approximately six to ten weeks), it is then cut and polished.

The CVD method places a diamond seed in a vacuum chamber. This chamber becomes filled with carbon-rich gases and is heated to nearly 1500 degrees Fahrenheit (815°C). The gas turns into plasma from these extremely high temperatures, causing the release of carbon pieces. These carbon pieces become layered onto the diamond seed, which grows the diamond.natural diamonds formed in the earth's crust, lab-grown diamonds are cultivated in labs.

These diamonds exhibit no noticeable distinctions in appearance, quality, or durability compared to mined diamonds. Their physical, chemical, and optical properties are indistinguishable, including their hardness on the MOH scale, ensuring lasting elegance. Verification of a diamond's origin, whether mined or lab-grown, can be found on its diamond certificate during your diamond shopping journey.

How are Lab-Grown Diamonds Made?

Lab grown diamonds can be created following two different techniques, HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Deposition).

With the HPHT technique, Lab-created diamonds are grown from a tiny carbon seed placed into a chamber of heat and pressure that mimics the natural method of diamond formation. Once the diamond has matured (approximately six to ten weeks), it is then cut and polished.

The CVD method places a diamond seed in a vacuum chamber. This chamber becomes filled with carbon-rich gases and is heated to nearly 1500 degrees Fahrenheit (815°C). The gas turns into plasma from these extremely high temperatures, causing the release of carbon pieces. These carbon pieces become layered onto the diamond seed, which grows the diamond.

LAB GROWN DIAMONDS CERTIFIED AND GRADED

Similar to natural diamonds, lab-grown diamonds have the option to undergo grading processes. They are sent to specialized gem institutes for evaluation by multiple gemologists. The individual assessments are then consolidated and compared to assign the lab-grown diamond its final grade. However, not all lab-grown diamonds receive grading; smaller stones may skip this process, and some jewelers opt not to grade their lab-grown diamonds. At Alfredo Gemyard, we provide grading for numerous lab-created diamonds, enhancing transparency in the lab-grown diamond purchasing experience.

Why Choose Lab Diamonds?

Ethical Sourcing

Customer Environmental Impact

Quality and Purity

 Transparency

Moissanite

Moissanite is a gemstone born from the stars. It was first discovered in 1893 by a French scientist named Henri Moissan, who later won the Nobel Prize in Chemistry. He discovered microscopic particles of the gem that would eventually bear his name in Arizona, in a crater created by a meteorite that fell to Earth. He initially thought that he had discovered diamonds, but later determined that the crystals were composed of silicon carbide.

Natural moissanite is incredibly rare, so moissanite available today is laboratory-created. After many years of trial and error, the particles Moissan discovered were successfully synthesized to produce what is now one of the world’s most scintillating gemstones.

Moissanite, referred to as a diamond simulant, is engineered to give the illusion of similarity to diamonds, but is compositionally and visually quite different from a real diamond. The durability, brilliance, and color of the two gems are quite distinct. One common property of both diamonds and moissanites is that they are both very good thermal conductors.

How are Moissanites Made?

Moissanites are created through a process involving silicon carbide, which is synthesized in specialized high-temperature furnaces. These conditions replicate the extreme pressures and temperatures found naturally in meteorites. Skilled artisans then cut and polish the resulting rough crystals to perfection.

The Lely process, named after its inventor, is a sophisticated technique used in moissanite production. It involves using vaporized silicon carbide to gradually build layers upon a seed crystal. This meticulous process creates gemstones known for their remarkable brilliance and fire, surpassing even diamonds in refractive index. Moissanites captivate light with a dazzling brilliance, achieved through the controlled alchemy of scientific methods rather than natural geological processes.

Moissanite DIAMONDS CERTIFIED AND GRADED

Moissanites undergo certification and grading by independent gemological laboratories such as the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). These reputable institutions employ scientific methods to evaluate the stone's key attributes: carat weight, color, clarity, and cut.

Carat weight indicates the size of the stone, defining its presence and impact. Color grading ranges from the pure brilliance of D to the warmer tones of J, revealing the stone's unique palette. Clarity assessment examines the stone's internal characteristics, ensuring even the smallest inclusions are identified. Lastly, cut evaluation focuses on the stone's craftsmanship, ensuring each facet plays its role in reflecting light and creating brilliance.

Through meticulous grading and certification processes, moissanites are validated for their radiant beauty and quality, providing assurance to buyers seeking exquisite gemstones.

Why Choose Moissanite?

Brilliance

Affordability

Sustainability

Durability

Diamonds Vs Moissanites

Diamonds and moissanites are both popular choices for engagement rings and other jewelry. Diamonds are a natural gemstone and are known for their durability and brilliance. Moissanites, on the other hand, are created in a lab and are known for their similar appearance to diamonds at a fraction of the cost. While diamonds are the traditional choice for engagement rings, moissanites have become increasingly popular due to their affordability and ethical production. Ultimately, the choice between diamonds and moissanites comes down to personal preference and budget.

To know more about Lab Grown Diamonds & Moissanites, please visit the FAQ's Page