Mined Diamonds
Traditional method for producing diamonds
Uses Heavy Machinery
Uses Explosives
Hydraulic Equipment
And other harsh methods to dig deep below the surface and extract the gems from the earth.
Mined Diamonds
VS
Lab Grown Diamonds
Differance between Traditionally Mined Diamonds VS Lab Grown Diamonds
Lab Grown Diamonds
Grown diamonds – also known as “cultured” or “engineered” diamonds – are manmade and created under controlled conditions in a sophisticated lab set up.
Under extreme pressure and heat a specific mixture of gases are utilized to slowly deposit elemental carbon on a substrate to create original diamonds.
Once finished, they have the same quality and structure of naturally occurring diamonds.
HOW LAB GROWN DIAMONDS GROWN?
There are two processes labs use to grow diamonds - High Pressure-High Temperature (HPHT) and Chemical Vapor Deposition (CVD).
HPHT diamonds are made using one of three manufacturing process: a belt press, the cubic press, and the split-sphere (BARS) press. All of these processes create an environment of extremely high pressure and temperature conducive to diamond growth.
An HPHT diamond begins as a small diamond seed that is placed into carbon. Using one of the manufacturing processes above, the seed is exposed to temperatures of about 1500 degrees Celsius and pressurized to approximately 1.5 million pounds per square inch.
The pure carbon melts and starts to form a diamond around the starter seed. It is then carefully cooled to form a pure carbon diamond.
A CVD diamond begins as a thin slice of diamond seed. The diamond seed is placed in a sealed chamber and heated to around 800 degrees Celsius.
The chamber is filled with a carbon rich-gas, like Methane, and other gases. The gases are ionized into plasma using technology similar to that of microwaves or lasers. The ionization breaks the molecular bonds in the gases, and the pure carbon adheres to the diamond seed and slowly crystallizes.
Either way the process is tightly controlled in labs which maintain the purity and structure of the diamonds which are synthesized. UNITY LAB GROWN DIAMONDS ARE HIGHEST GRADE PURIFIED CVD DIAMONDS.
HOW ARE LAB-CREATED DIAMONDS CERTIFIED AND GRADED?
Lab-created diamonds are graded and certified using the same process as mined diamonds. Diamonds are sent to a gem lab that specializes in grading diamonds. The majority of these labs grade using the 4c’s (cut, clarity, colour, and carat) The diamond grading process is roughly the same for all of the diamond certification labs. Each diamond is graded independently by several gemologists at the lab. The individual grades are compiled and analysed to determine the final grade. More than anything, jewellers want you to be confident in your purchase, so don’t be afraid to ask questions in order to find the best lab-created diamonds for your engagement ring or jewellery. The most popular diamond certification labs are:
The 4 C's of Diamonds
All diamonds, whether mined or lab created, are graded on quality using a universal system that assesses the stone on its color, clarity, cut and carat-weight; this grading system is commonly known as the 4 C's’of diamonds. Every Unity lab grown diamondis guaranteed to be pure enough to be a part of your life. And YES, every UNITY lab grown diamond will last you a lifetime.