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Frequently Asked Questions

After decades in the craft, we have been asked many questions, and we welcome any inquiries you may have.
Here are our most frequently asked questions:
Lannyte is a brand name representing an association of various Laboratories world-wide that produce a variety of man-made gemstones. These gems are made and grown using proprietary substances and processes to stand apart from other man-made gemstone manufacturers. No expense is spared to create our gems from start to finish, and because of this, we are not the lowest priced option, but definitely among the highest caliber.

Lannyte sells man made gems that fall under two categories

  • “Simulated” – gems in this category are not chemically identical to their earth mined counter parts
  • “Lab Created/Grown” – gems in this category are chemically and physically identical to their earth mined counter parts.

 

The Lannyte Company sells the following type of man-made stones

  • Lab Grown Diamond
  • Lannyte Simulated Diamond (available in a variety of colors)
  • Lab Grown Emerald
  • Lab Grown Ruby
  • Lab Grown Sapphires (available in a variety of colors)
  • Lab Grown Alexandrite
  • Moissanite
  • Various high caliber Simulated Gems

Lannyte does sell “real” diamonds, this would be what we call the “Lab Diamond” (aka Lab Grown Diamond or Lab Created Diamond). These Diamonds are chemically and physically the same as “Natural Diamonds” which are mined from the earth. Our “Simulated Diamonds” on the other hand are not considered “real” diamonds because they are not chemically identical to Earth Mined diamonds.

First of all, “Lab Grown” and “Lab Created” diamonds refer to the same type of stone, they mean the same thing.

Moissanite and Lannyte Simulated Diamonds are substitutes in terms of diamond simulants, and they are not the same. The Lannyte Simulated Diamond differs from a Moissanite in a few significant ways:

  • Which simulant Shines like a diamond? Shine has to do with a stone’s Refractive index as well as light dispersion.
    • Natural Diamond – crisp shine with little rainbow effect
      • Refractive index 2.42.
      • Light Dispersion 0.044
    • Lannyte Simulated Diamond – crisp shine with little rainbow effect
      • Refractive index 2.23
      • Light Dispersion: 0.069
    • Moissanite – slightly blended shine with greater rainbow effect
      • Refractive index 2.65
      • Light Dispersion: 0.104
    • Bottom line: Lannyte shines more like a diamond
  • Which simulant looks more like a diamond? The Lannyte is singly refractive like a natural diamond, and Moissanites are doubly refractive. The double refraction of the Moissanite is the single biggest giveaway that it is not a natural diamond. It can be detected even with the naked eye, and easily with a common 10x loupe.
  • Which simulant is more durable? Moissanite is a 9.25 in the hardness scale while Lannyte is 8.50. The recommended hardness for stones set in jewelry is 7.5 to 8. Both simulants feature a lifetime warranty from the Lannyte Company.

All, with the exception of the stones listed below, Lannyte Gemstones come with a Lifetime Warranty. The following is our complete Warranty:

If, following the purchase of the Lannyte gemstone, the Lannyte gemstone becomes cracked, chipped, discolored, or broken in the course of normal domestic use, The Lannyte Company will replace the Lannyte gemstone. The replacement will be at no cost or obligation to the buyer, upon delivery of the destroyed or damaged Lannyte gemstone, together with satisfactory proof of purchase and this guarantee form, to the Jeweler from whom the Lannyte gemstone was purchased. Notwithstanding anything to the contrary herein contained, the Lannyte Company shall not be liable for any consequential damages suffered by the buyer from any cause whatsoever. The parties agree that the replacement of the Lannyte gemstone will constitute the buyer’s sole remedy and the Lannyte Company’s sole obligation.”

The stones not covered in the Warranty are the following:

  • Lab Grown Diamonds
  • Lab Created Emerald
  • Lab Grown Columbian Green
  • Lannyte Doublet Emerald
  • Lab Grown Alexandrite (Recrystallized)

The rule of thumb is that a gemstone should be at least a 7 on the Mohs scale for general jewelry use. At Lannyte, we know that it really matters where, on your person, you are wearing the jewelry. If worn on the finger or wrist the gemstone will come into contact with many surfaces and the wear and tear will be relatively high, we recommend it be an 8, if worn on the neck or ear, our recommendation is at least a 7.

The fact of the matter is that your gemstone is at its most vulnerable when it is being set, and after that, unless you’re going to be slamming it against hard surfaces repeatedly, there is not much reason to worry about it being harder than an 8. This does not mean your jewelry will not accumulate wear, tear, dirt and scuffs over the years. This is why our stones are warrantied!

In case you want to have the hardest stone possible, our lab grown diamonds are chemically and physically the same as natural diamonds so they are a 10 on the Mohs hardness scale.

Although Lannyte sells stones of many different composition, all of these stones can handle the required heat to have them set in jewelry with the exception of our “Lab Grown Columbian Green” and our “Lab Emerald” because, like natural Emerald, they are made from Beryl which is heat sensitive. They can still be set in jewelry, but care must be taken to do so.

-Heat sensitive stones

  • Lab Grown Colombian Green
  • Lab Emerald
  • Emerald Doublet

-Heat tolerant stones

  • Simulated Diamonds
  • All Simulated colors
  • Alexandrites

-Very Heat tolerant stones

  • All Corundum Sapphires
  • Lab Grown Diamonds

Glass generally has a harness of about 6.7 to 7 so anything with a hardness greater will cut it. People make a big fuss about hardness (marketing diamonds) but so long as the hardness of your gemstone is greater than the dust in the air (usually quartz-hardness approx. 7.5) the only reason to think about hardness is for industrial purposes. In any case we guarantee our stones against damage from ANY cause do you don’t need to worry.

As explained above, your jewelry does not need to be a 10 in the hardness scale, so this is not the reason to pay so much more for an Earth Mined Diamond, and this is the single greatest difference between a diamond and a simulant.

Now with the prevalence of the Lab Grown Diamond, the main reason to pay so much more for an Earth Mined Diamond is just to show how serious you are about your commitment or gesture to your loved one, but we believe this commitment can be shown by spending money on so many other things rather than a rock which can easily be lost or stolen. Jewelry is something to adorn and beautify, not to invest your savings in. At Lannyte our goal is to match and surpass the beauty of the Earth mined gem so that you can invest in what you deem valuable. Whether it be a rich experience or Real Estate!

There are two general types of Lannyte gemstones, Labratory Created (synonymous with “Lab Grown”) and Simulated. Both types of Lannyte gemstones are held to a very high standard and must meet several stringent criteria. The primary difference between these two types of gems is that by industry standards “Lab Created” (also known as “Lab Grown”) gems must be the same chemical composition as the original earth mined gem and “Simulated” gems do not need to be the same chemical composition.

Recent advancements in science and technology have catapulted simulated diamonds to a whole new level. These advancements allow Lannyte to make wonderful colors in the lab with high quality rough material that produce great fire and resemble the most rare and beautiful of gems. When this rough material does not match the original in chemical composition, then it must be called a “simulated” version of the original. In reality you are getting a stone with a hand selected vibrant color that is more durable than the real thing! 

The Lannyte Colorless White Simulated Diamond is made from Zirconium Dioxide along with a proprietary blend of substances and processes which make its physical characteristics closer to that of a diamond than any other simulant, including Moissanite and common CZ’s. Our founder, Bob Silverman, conducted years of research and development in the 1980’s to find that Zirconium Dioxide, if manufactured without cutting corners using a specific method and a few additional proprietary substances, is the single best diamond simulant due to its single refractivity, overall light refraction index, and durability.

To begin with, Lannyte has a highly exclusive rough selection process which ensures we only start with the cream of the crop. Our rough goes through a rigorous selection process which rejects typically 80% of the raw material. With the remaining 20% that has passed the inspection points, Lannyte gems are hand cut and polished by experienced artisans just like natural diamonds.

Particularly during the end of the 20th century we witnessed the jewelry industry engage in a “race to the bottom” in terms of production for quantity at the cost of quality. This trend has only increased ever since. Our mission at Lannyte is to defy this trend and spare no expense to craft our stones, no matter the roadblocks.

Nearly all diamond simulants including “CZ’s” are are poorly cut and polished for cheap mass production to meet the lowest price points. Most people are unaware that Zirconium comes in many different qualities, and features significant variation in physical properties in the rough material. Common CZ’s are made for mass production from the lowest quality and cheapest rough material possible and the results are apparent in the finished product. Great care and precision are used in the cutting and polishing of our stones, and this leads to a higher cost. After individual hand cutting and polishing, our stones go through additional proprietary processes which ensure the highest possible integrity and shine. We spare no expense to treat and manufacture our premium rough material just like natural diamonds from start to finish, and this is what sets Lannyte apart. The difference is in the end product, and this is why we encourage you to visit a dealer near you to see it for yourself.

We stand behind our stones with a lifetime warranty which includes replacement even upon every-day wear and tear.

The point is that although the Lannyte Simulated Diamond shares a common base ingredient with a CZ, being Zirconium, the differences are vast in rough material quality, production, and end-result. We encourage you to visit your nearest dealer to see the difference yourself. Visit our media center  featuring videos and side-by-side comparisons of diamond simulants.

Lannyte’s Simulated Gems are verified to be sustainable for the earth and conflict free. Many earth mined gems are not. In addition, we make sure our cutting and polishing is done under fair and ethical working conditions. 

It took years for Lannyte to choose the rough materials that now make up our line of simulated diamonds and gemstones. The following are the criteria that all our simulated stones must meet in a nutshell. 

  • Color: each natural gemstone that is earth mined has its unique flavor dependent on its geography. At Lannyte we have dedicated years to sourcing rough material that matches the exact shade of color emitted by the best of the earth mined gems. 
  • Fire: this the gem industry’s term for that unique sparkle that only some stones seem to have, regardless of the specs. Any experienced gemologist will tell you that 
  • Durability: through the 100+ Years of experience of our founders and staff, Lannyte has determined the minimum durability that your average gem must have in order to hold up to the standard amount of wear and tear. 

Lab Created also known as “Lab Grown” Gemstones are separated by their earth mined counterparts by one thing alone: where it’s made. Natural gems are made in the earth, Lab Created Gems are made in a lab, otherwise they are physically, chemically, and aesthetically identical. The following are the main reasons why people opt for Lab Created/Grown Gems over their earth mined counterparts:
1. Sustainable & Conflict Free
2. Cost
3. Beauty 

At Lannyte we replicate the best and most in demand hues that come from the earth. That’s the beauty of creating it in the lab!

In addition, keep in mind, Lannyte’s Lab Created Gems are verified to be sustainable for the earth and conflict free. Many Earth mined gems are not. In addition, we make sure our cutting and polishing is done under fair and ethical working conditions. 

It took years for Lannyte to choose the rough materials that now make up our line of  Lab Created or Lab Grown gemstones. The following are the criteria that all of our simulated stones must meet in a nutshell. 

  • Chemical Composition: recently the man-made diamonds and gems industry has seen a rise of misleading and sometimes flat out unethical deviations from best practices of our industry. Lannyte has been a trusted source of man-made gems for decades, and we only deal with tested and verified rough material. To us, “Lab Created” means the stone is 100% the same chemical composition as it’s earth mined counterpart, no ifs ands or buts about it, and when it is not 100% chemically identical, we call it “Simulated.”
  • Color: each natural gemstone that is earth mined has its unique flavor dependent on its geography. At Lannyte we have dedicated years to sourcing rough material that matches the exact shade of color emitted by the best of the earth mined gems. 
  • Fire: this the gem industry’s term for that unique sparkle that only some stones seem to have, regardless of the specs. Any experienced gemologist will tell you that