Tourmaline jewellery

Tourmaline jewellery

Tourmaline is a boron silicate mineral which comes in a variety of colours due to the trace elements found within, and is the birthstone for October.

The most common colour of tourmaline is green, followed by pink, yellow, blue, black and brown. Tourmaline is also found in bi and tri colours, the most common is ‘watermelon’ tourmaline consisting of a green outer colour and fading to a pink hue in the centre.

The most expensive and highly prized colour is the Paraiba tourmaline

The most expensive and highly prized colour is the Paraiba tourmaline. Found in 1980 in Paraiba, Brazil, this vivid green/blue gemstone exhibits depth of colour like no other gemstone.

Other tourmaline colours

Other forms of tourmaline are found all over the worLd. Afghanistan, Pakistan, Russia, Burma (Myanmar), Sri Lanka (Ceylon), and the United States are all suppliers to the jewellery market, as well as some African countries like Madagascar.

It is well suited for all jewellery from rings, pendants and earrings due to it’s hardness of 7-7.5 on the Moh’s hardness scale, and is a great alternative to gemstones like peridot and varying colours of sapphire.

These tourmaline pieces were custom designed and handmade in collaboration with our lovely clients.

Fancy a piece of tourmaline jewellery for yourself? Call us today to schedule an appointment 03 9650 3830 or email for an available appointment info@abrecht.com.au

A beautiful Paraiba tourmaline, recently shown to our client. This colour is not found in any other natural gemstone.

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Pink and cognac diamond jewellery available in our showroom. Custom made pieces also available.

Argyle diamond mine

The Argyle diamond mine in the remote East Kimberley region of Western Australia is owned and operated by Rio Tinto and has been operating since 1983. It has produced more than 800 million carats of rough diamonds and is one of the world’s largest suppliers of diamonds and the world’s largest supplier of natural coloured diamonds.

Argyle to close by 2020

The diamond industry is soon set to change however, as Argyle is due to close by 2020 due to the low proportion of gem-quality diamonds now available.

Diamonds from Argyle will see a significant increase in price

As a result coloured diamonds (pink and cognac colours) from Argyle as well as colourless will see a significant increase in value once the mine has ceased production.

We are delighted to announce that we have secured a source of diamonds that are guaranteed to be of Australian origin. Each stone comes with a certificate of authenticity, a GIA grading certificate and is laser inscribed. These stones won’t be around for long.

Call us today to make an appointment and select your own Australian diamond before they disappear.

03 9650 3830 info@abrecht.com.au

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Come follow us for updates on whats happening in our workshop. This includes the newest hand made items from our workshop, before and after repairs and client designs from start to finish.

Follow the creativity of our talented jewellers here or make an appointment to design your own 03 96503830. info@abrecht.com.au

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Types of pearls

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Akoya pearl necklace and earrings

South Sea pearl rings, pendant, earrings and a Keshi bracelet

Freshwater pearl necklace and pendant

What is a pearl?

Pearl is classified as an organic gemstone – created by animals or plants to produce materials that have been used in jewellery for centuries.

Pearls unlike gemstones that can be mined and faceted come from varying species of oysters. Five main saltwater and freshwater oyster species are used to produce pearls we see today.

There are three main types of pearls:

Akoya pearls

This type of pearl originated in Japan and has been cultivated since the 1920’s and predominantly occur in a uniform round shape.

Sizes of Akoya pearls are generally smaller in comparison to other pearl types ranging in sizes up to 8mm.

Historically it took 3-4 years to cultivate Akoya pearls but with advances in technology a mere 6 months is now involved to produce one.

Japan’s technique to produce these pearls was a well kept secret and dominated the market for the first 50 years but currently is in a state of decline as pollution of Japanese waters have affected the environment.

China has since taken over production of most Akoya pearls due to protected waters providing pristine conditions for pearl growth.

South Sea pearls

South sea pearls come in four main varieties. Gold, white, Keshi and Tahitian or black pearls.

Pearls of these types are farmed from a number of places in the world.

Tahitian (or black) pearls are found in French Polynesia, producing 90-95% of the worlds’ black pearls. The colour varies from a dark grey to vibrant peacock hues.

White South Sea pearls are farmed in Australia (currently the worlds’ largest producer) but are also produced in Indonesia and the Philippines. These countries also produce South Sea pearls of a golden colour.

South Sea pearls generally take 2 years to develop, this longer development period gives the nacre (the mother of pearl coating) a better depth of colour. Sizes of South Sea pearls are generally larger than Akoya and Freshwater pearls and can be found in sizes up 20mm.

An additional by product of the pearl industry is the Keshi pearl. These free form shaped pearls develop as a result of the oyster rejecting the pearl graft (the bead placed inside the oyster for the pearl to develop) and continuing to produce the nacre causing a free form shape.

Freshwater pearls

Freshwater pearls are produced in China using the same techniques as Akoya pearls and come in a large range of sizes and exotic shapes and colours. Some freshwater pearls are also dyed to imitate the colours obtained by South Sea pearls.

Cultivation or growing times vary depending on the size of the pearl, varying from 6 months to 5 years. Technology is advancing and sizes of freshwater have grown in size over the years. Originally sizes of 3-9mm were only obtainable but the industry has started to see sizes of 15mm and up.

 

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