What is the difference between a "lab" Gems and a "imitation"Gems

What is the difference between a "lab" Gems and a "imitation"Gems

The "lab" Gems:

These stones are made in the lab and have 100% of the same
composition and properties of there natural counterparts
they are the finest lab stones money can buy.
Most Look Better than Natural.
All are listed as Fine - Gem Quality

The "imitation" Gems:

Most Of these stones are made of "Syn Spinel" or "Syn Corundum"
in the laboratory and do not have the same composition
and properties of there natural counterparts
most dealers will sell these stones as "lab created".

Mystic CZ ，Mystic Cubic Zircon

Mystic CZ are done with the same process?as the Mystic Topaz and by the same laboratory . It is a lab created cubic zirconia enhanced with a US patented coating technology.? A thin film is applied to the stone.? This process is called “physical vapor deposition”; it uses various minerals.? No harsh chemicals or radiation is used.? This process produces a kaleidoscope of colors.?

Because cubic zirconia have "fire" that topaz lacks the results with cz gemstones are even more spectacular visually than with topaz. Mystic fire topaz has rich deep colors while with mystic ice cz jewelry there is more brilliance, sparkle, and fire, as well as a greater rainbow effect. Unless you specifically love topaz, you will not be disappointed in your mystic ice cz jewelry.??

The coating is durable and hard and will last a lifetime provided that it is not exposed to any abrasive, acids, high heat or immersed in an ultrasonic cleaner. To clean it, simply use mild soap and water or windex.