The Star Of Africa

Star of South Africa Diamond

Star of South Africa Diamond The “Star of South Africa” diamond was discovered in 1869 and started ‘diamond fever’ throughout the world. The 47.69 carat pear shaped diamond was set into a pendant brooch with oval and round old mine cut diamonds in a lily of the valley motif. The brooch designed by Pierre Cartier…

periodic table, gold, altın

Why do we value gold?

Why do we value gold? Mankind’s attitude to gold is bizarre. Chemically, it is uninteresting – it barely reacts with any other element. Yet, of all the 118 elements in the periodic table, gold is the one we humans have always tended to choose to use as currency. Why? Why not osmium or chromium, or…

pearl, inci

Pearl Gemstone Information

About Pearls – History and Introduction Pearls are organic gemstones that are formed by shelled molluscs; mainly bivalved oysters and mussels. Pearls are made up of nacre (mother-of-pearl) which is mostly aragonite (calcium carbonate) and conchiolin (complex proteins that form mollusc shells). The aragonite microcrystals build up around an irritant. The name “pearl” is said…

gold ounce

Gold Ounce

The ounce (abbreviated oz; apothecary symbol: ℥) is a unit of mass used in most British derived customary systems of measurement. The common avoirdupois ounce (approximately 28.3 g) is ​1⁄16 of a common avoirdupois pound; this is the United States customary and British imperial ounce. It is primarily used in the United States to measure…

gold investment

Gold Investment

Gold as an investment Of all the precious metals, gold is the most popular as an investment. Investors generally buy gold as a way of diversifying risk, especially through the use of futures contracts and derivatives. The gold market is subject to speculation and volatility as are other markets. Compared to other precious metals used…

7 Most Expensive Diamonds in the World

The 7 Most Expensive Diamonds in the World

The 7 Most Expensive Diamonds in the World Lookout Titanic… These are the 7 most expensive diamonds you can find on planet Earth: Moussaieff Red Diamond #7 The Moussaieff Red Diamond The Moussaieff Red Diamond is a diamond measuring 5. 11 carats (1. 022 g) with a triangular brilliant cut sometimes called a trillion or…

diamond

Diamond

What Is A Diamond? The word Diamond comes from the Greek word Adamas, which means indestructible. It is the only gem known to man that is made of a single element, Carbon, besides graphite. Diamond is completely made of Carbon atoms (Chemical Composition – C) crystallized in a cubic (isometric) arrangement. How and where are…

gold, altın

Gold

Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid…