When you ask gem specialists, they should explain to you that since synthetic or lab created gemstones are created of the same substance as natural gemstones, they discuss the same chemical and visual properties. A synthetic pearl is made up of aluminum oxide, the same material as the gemstone. It is just as difficult and just as excellent as a natural sapphire. Actually the coloration and quality of the synthetic stone might be outstanding to most organic sapphires. The synthetic sapphire will also be readily available in bigger sizes and at a significantly cheaper price.
Generally a much better product at a lower price is a guaranteed bet to be successful in the market. But organic gemstones continue to be recommended by knowledgeable gem buyers. Actually most of these customers would not even think about buying a synthetic gemstone to create fine jewelry. Why is that? One answer is that a natural gemstone is incredibly rare, and thus has a unique value. But we probably should not agree to this as the whole answer. This is because its not all rare things, however useful, are fundamentally interesting or beautiful. Rare coins, for example, can be be worth a fortune; but they are collected completely for their scarcity, not their beauty.
We could say alternatively that natural gemstones are unusual in a special way -- they are a kind of miraculous of nature; a happy accident where the right circumstances came together to produce a material that can be cut and refined to produce a finished product with exceptional properties. In taking into consideration this answer, it's worth keeping in mind that not all natural gemstones are useful. Low quality samples form the bulk of the result from practically every mine. Gem high quality material has a rare collaboration of visibility, clarity and color. But there is much more to a natural gemstone than just these features, which certainly is usually found in synthetic stones. A natural sapphire is not just aluminum oxide. It may also consist of a number of "impurities", including titanium, iron, chromium and rutile. These impurities make contributions not only to the hue of the gem, but also to its structure, its overall look under different kinds of illumination, its color zoning and a entire range of subtle optical features.
Synthetic gems are basically more fantastic than most of the samples found in nature. But in many gemstones it is perfectly these random defects of nature that give organic gemstones not simply their rarity, but also their unique beauty. The idea that synthetic gems are chemically identical to organic gems is actually incorrectly recognized. Natural gemstones are established very gradually in nature, under conditions unique to each locale.
Synthetic gems are developed quickly under managed laboratory conditions. Even though synthetic sapphire and natural sapphire are both basically aluminum oxide, there are many physical and qualitative differences. For example, the velvety texture of a fine natural blue sapphire is due to very small blemishes of rutile that formed as a result of geological processes. Replicating these natural effects in the laboratory, while not difficult in principle, is incredibly difficult. Natural sapphire is of course more costly, but for gem lovers and collectors who enjoy fine gems, the price of natural sapphire is definitely worth it.