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Tanzanite is one of the youngest gemstones on the market. Just sixty years ago it was not known as a gemstone, and to this day it is commercially mined in only one place in the world. It captivates with its rich blue-violet colour, which changes with the viewing angle and with the light. We explain
Opal is one of the few commonly used gemstones that do not have a crystalline structure. Its characteristic play of colour is not caused by an admixture, but by the diffraction of light on tiny spheres of silica. At the same time, a single name covers stones that are alike neither in appearance nor in
Perfume gets used up and a sweater fades over time. A piece of jewellery with a natural stone can be passed down. But for a gift to truly last, choosing a pretty colour is not enough. It depends on how durable the stone is, what metal it is set in, what size it should be
With colourless diamonds, you usually pay for the least possible tint of colour. With natural fancy diamonds, the logic is the opposite: it is precisely the intensity, hue and origin of the colour that can significantly increase the price per carat. Using specific stones, we explain how the Fancy scale works, where the individual colours
A large druse, geode or crystal sphere can work in an interior much like a sculpture or a striking work of art. What matters, however, is scale, placement, the stand and light — not the price of the stone itself. We take a practical look at how to choose a mineral statement piece that becomes
Petrified wood combines a geological story with a striking visual character: the structure of an ancient trunk remains legible, but the original organic matter has been replaced by minerals. In the interior, it can therefore work as a standalone piece, a table top or a wall object. We look at how it forms, what to
Vážení zákazníci, z provozních důvodů budeme mít v pondělí 10. listopadu otevřeno mimořádně pouze do 15.45. Omlouváme se za vzniklé potíže. 4C minerals
Vážení zákazníci, dovolte nám prosím informovat Vás o Vánoční otevírací době naší kamenné prodejny. Do 23. prosince otevřeno každý den VČETNĚ VÍKENDŮ 10-18 h. Přejeme příjemné prožití Vánočních svátků!
Dear friends, in the run-up to Christmas we have prepared for you a section of investment stones containing natural stones of exceptional quality. Thanks to their rarity or high quality, these stones are suitable as an investment instrument. The long-term, steadily rising prices of exceptional natural stones have increased sharply in recent turbulent years, while
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