Real jewellery and Imitation jewellery
Real jewellery was the hottest commodity in the past. Many folks still hold a preference for real jewellery even today. Nowadays imitation jewellery is also popular as real jewellery. Main advantage of wearing imitation jewellery it is safest way in many outdoor situations; such as while at sporting events or walking through a crowded street.
Many women still keep a range of authentic jewellery to wear on religions occasions. The main reason of decreasing popularity of real jewellery is its cost. Wearing imitation jewellery during other occasions such as a parties, while out on a trip is considered perfectly acceptable these days. The rising cost of raw material such as gold, silver, precious stones, and diamonds, demand of these replaces to imitation jewellery.
A gemstone is a stone that is beautiful
A gemstone is a stone that is beautiful, rare, and durable resistant to abrasion. Today, finer gemstone specimens are available to the average person than at any time in history.
Nowadays such a distinction is no longer made by the trade. Rare or unusual gemstones, generally meant to include those gemstones which occur so infrequently in gem quality that they are scarcely known except to connoisseurs, include andalusite, cassiterite and bixbite. Some minerals can be very beautiful, but they may be too soft and will scratch easily (such as the mineral fluorite). Fluorite is extremely colorful and pretty but has a hardness of only 4 on the hardness scale and has four perfect cleavage directions, which makes it only an oddity as a cut gem.
A diamond is a form of carbon
A diamond is a form of carbon that was created deep within the core of the earth more than 3 billion years ago and brought to the surface by volcanic eruption. In diamond, each carbon atom is bonded to four other carbon atoms in a tetrahedral structure, like a pyramid.
Each link or bond is the same length, and the tetrahedral formation is therefore completely regular. Theoretically a perfect diamond crystal could be composed of one giant molecule of carbon. After the magma cooled, it solidified into kimberlite, where the precious rough diamond is still found today. It is the strength and regularity of this bonding which makes diamond very hard, non-volatile and resistant to chemical attack.