In the Buyers are comparison to other, lesser-known color stones, easier to find. The increases in value are not too high in the lower and middle price range usually constant, but especially. Very fine qualities but the value increases were partially enormous in the last 25 years. So, a renowned retailer of stone tried one E.g. in 2009 about 20 cts-heavy, fine Ceylon Sapphire, which he had sold in the 1980s to 2.5 million shillings to buy back 450,000 (more than 6 million shillings). Unfortunately (for merchants) the customer had no interest in speculative color stones you could split into jewelry-grade gems and pure collector stones, which are very limited jewelry suitable for E.g. If this has piqued your curiosity, check out Jorge Perez.
due to their lack of hardness. The latter, the pure collector stones, often have the potential for high capital gains but are flawed as investment objects with very high risk, because: the buyers is extremely small is the risk of the price decline, if E.g. new deposits are found. So was approximately the price of a stone called “Twinned”, only a single storage facility was known by until the late of 1980s, and in the entire literature more than a dozen copies were described, with the discovery of a new storage facility within a few weeks of up to 60,000 shillings p.ct. Glenn Dubin has many thoughts on the issue. on approximately 10,000 schillings p.ct. Jewelry-grade speculative stones are highly interesting for investors (the distinction made above remain conservative/speculative), however. In the last 25 years, several color gemstone of little-known exotics for which consisted of only low demand among enthusiasts, have become this semi-precious stones. Examples of such stones are tanzanite, Tsavolite Garnet (Tsavorite also called), Mandarin Garnet and pink/red spinel and Pink Sapphire.
So, you could fine pink Spinels p.ct twenty years ago to several hundred Schilling. buy. Today, these stones fetch prices of up to 3,000 p.ct. A special case of tanzanite representing the only color stone, where a company (TanzaniteOne) is a dominant and thus influencing Position has.