Diamond Guild Australia members recommend you purchase a diamond because you love it. Given that diamond prices have been increasing for the last 15-20 years, it is unlikely that diamonds will ever lose their value. However, no – one can predict which way the market will swing. Therefore, unless you are an experienced diamond trader, […]

While shopping for jewellery insurance it is important to understand that not all insurance cover offers the same level of benefit should you ever need to lodge a claim. Many general insurers offer a basic level of cover for valuables as part of a home and contents policy. However, unless the items are specified separately […]

Diamond jewellery carries not only the promise of becoming a family heirloom, but a physical connection between generations knowing that the diamond has touched the skin of previous wearers and is charged with emotion and memories. Rohan Jewellers is privileged to reinvent generational pieces for modern times, from vintage jewellery to engagement rings – pieces […]

The perfect, classic emerald-cut D colour diamond was purchased by an anonymous buyer via a telephone bid. It had a pre-sale estimate of $19 million to $25 million. The diamond is about the size of a walnut and was mined by De Beers in Southern Africa. Originally weighing over 200 carats, its owner spent more […]

This fancy intense pink is 24.78 carats in size and is valued at $46 million. It was once owned by the legendary jeweller Harry Winston. It was sold at auction by Sotheby’s in 2010 and is now owned by collector Laurence Graff. It has been described as one of the greatest diamonds ever discovered. The […]

“There has been a real swing towards ‘casual luxury’ – day-to-night diamonds that are wearable in any circumstance, whether you’re going out to dinner or going to a Pilates class. That can mean choosing more unusual diamond shapes or layering up a number of diamond tennis bracelets. It’s a definite shift from the traditional big, […]

“I have two pieces that immediately spring to mind – one that was created for a wedding (in fact, for my wedding) 10 years ago, and another that “walked down the aisle” this year. The first piece is incredibly close to my heart; a diamond hairpiece with a detachable brooch bow that was inspired by […]

Uncut rough diamonds look like water-worn quartz pebbles, but they can be differentiated by properties such as crystal structure, specific gravity, hardness, and other distinguishing qualities. Diamonds have an isometric crystal structure, a specific gravity of 3.1–3.5, a Mohs hardness of 10, cling to a grease table, and glow under shortwave ultraviolet light in some […]

The short answer is no. There is misinformation widely available that coal is believed to be the source of diamonds. Rarely, if ever, has coal played a role in the production of diamonds. In fact, the majority of diamonds that have been discovered and dated are actually older than the first plants on Earth, which […]