Shop Opals & Pearls at Cosmopolitan Jewellers Australia

The name Opal was probably derived from Sanskrit “upala”, meaning “valuable stone”. This was probably the root for the Greek term “Opallios”, or a “stone from several elements”. So, the ancient Romans may already have had an inkling why Opals show such a striking play of colours. Unlike most gems, Australian Opals are infinitely varied and are most valued for their “play of colour” … the shifting patterns of highlights that can range across the entire spectrum. Opal is a rare type of hydrated silica… its chemical formula is SiO 2. nH 2 O. The minute particles of silica form into closely packed spherical aggregates. It is the varied arrangement of these minute particles and the gaps between them that causes light to be scattered and diffracted. Where to buy opals in Sydney? You can find the beautiful Australian Opals in our Sydney store, we are  Australia’s largest Black Opal ,  Boulder Opal and Crystal Opal jewellery shop .  We have the finest quality Opals at the most co...

Blue is the main colour of sapphire. Blue is also the favourite colour of some 50 per cent of all people, men and women alike. We associate this colour, strongly linked to the sapphire as it is, with feelings of sympathy and harmony, friendship and loyalty; feelings which belong to qualities that prove their worth in the long term- feelings in which it is not so much effervescent passion that is to the fore, but rather composure, mutual understanding and indestructible trust.  Thus, the blue of the sapphire has become a colour which fits in with everything that is constant and reliable. That is one of the reasons why women in many countries wish for a sapphire ring on their engagement. The Sapphire symbolises loyalty, but at the same time it gives expression to people’s love and longing.  The blue of sapphire even appears where nothing at all counts except clear-sightedness and concentrated mental effort. The first computer which succeeded in defeating a world chess champion b...