1) Purity Of Rough Material
2) Cutting Technique
3) Polishing Technique

Purity of Rough CZ Material:

In order to have brilliant and flawless Cubic Zirconia, the quality of rough material used is of the highest importance. Cubic Zirconia was originally invented in the 1970s by the Russians for use in laser technology as the best diamond alternative. Later these high quality stones were introduced to the jewelry industry. Unfortunately, much of the Cubic Zirconia used today is mass produced. It is of inferior quality and is not made using the original Russian Formula. A low quality rough material is cloudy looking, soft and tends to be damaged easily. The CZ stones produced from such rough material are cheap looking and do not look like a real diamond. For clarity and brilliance, FU RONG GEMS prides itself on using only the original classic Russian Formula CZ. This makes all the difference in quality! FU RONG GEMS Cubic Zirconia stones have a 99.99% purity level. Our choice in high quality Cubic Zirconia stones in solid 14K, 18K gold and platinum settings assures that no one will know that you are not wearing real diamonds.

Cubic Zirconia Cutting Technique:

Another major point of difference between Birkat Elyon and the others is the cutting of the stone. There are 2 kinds of CZ: Machine-Cut and Hand-Cut Cubic Zirconia. Mass-produced Cubic Zirconia saves in manufacturing costs but sacrifices quality. Mass-produced CZ stones are made by machine. What sets FU RONG GEMS apart is we use only the world’s finest, hand-cut stones. Each stone is individually cut with great precision. This painstaking work is done by hand, by highly trained professionals. For the final quality check, each stone is examined with a special magnifying glass and any imperfect stones are discarded. Be aware that not every hand-cut CZ is considered top quality. It all depends on the technique and the experience of the cutter. A hand-cut CZ that is not cut with precision and proper technique will not look as brilliant or as real looking as expensive diamonds.

CZ Polishing Technique:

Last but not least, is the polishing technique used on the stones. Even a Cubic Zirconia stone that is made of highest quality rough material and is hand-cut by highly trained professionals won’t look brilliant if it’s not polished properly. Polishing technique is extremely important in the final step of producing a top quality CZ. The mass produced machine-cut Cubic Zirconia is not polished as thoroughly as the hand-cut CZ and the material that is used is of lesser quality. Machine-cut CZ has a thicker girdle, which is the outer edge of the stone, while FU RONG GEMS's top quality CZ has a thin, polished girdle the same as diamonds. Usually a low quality CZ is identified by their thick unpolished girdle and a lack of overall brilliance. FU RONG GEMS uses only the most expensive and effective material to bring out the brilliance of the Cubic Zirconia. With our unique and thorough polishing technique our stones have the shimmering, sparkling beauty of priceless diamonds.

The sapphire has long been treasured for its deep blue color. It is now being rivaled in popularity by the similarly colored tanzanite, which appeared on the marketplace in the late 1960s.

1. Color

   • Sapphires are made of corundum and are generally blue, but can also come in yellow, pink or green. Most sapphires are heat-treated to enhance their deep midnight-blue color. Tanzanite, made of the mineral zoisite, is also heat-treated to achieve its medium to deep violet blue.

   Durability

   • With a hardness only slightly less than that of the diamond (sapphire is 9 on the Mohs hardness scale; diamond is 10), sapphire is exceptionally durable. It stands up well to everyday wear in a ring or a bracelet. Tanzanite rates 6.5 on the Mohns scale; its softness and brittleness require that it be worn with care so it does not crack or shatter.

   History

   • Sapphire, the birthstone for September, is a legendary gemstone from ancient times, when it was worn by kings. Because of its relatively recent discovery, tanzanite does not yet have much lore. It was originally called blue zoisite, until Tiffany and Company christened it tanzanite after the country of its discovery.

   Relative Value

   • Prices for tanzanite have been rising while prices of sapphire have fallen, meaning costs for the two gemstones may overlap.

   Cleaning

   • Sapphire can be cleaned in a variety of ways, including ultrasonically or with a little ammonia added to warm water. Tanzanite is sensitive to temperature changes and should be cleaned with lukewarm water and a mild liquid detergent, never in an ultrasonic cleaner.