The saying goes 'Diamonds are forever' but these days, it's more likely to be, 'Diamonds are for now, unless things go pear-shaped or I fancy a new one'. Sadly, for the diamond industry (and perhaps the state of modern romance) the ring market on eBay has gone up 58% in last 5 years, as buying jewellery over the internet has become a more secure process.

It's no wonder that diamond retailers are concerned about this unfussed new approach to engagements with the Diamond Producers Association launching a USD$18 million advertising campaign last year to convince buyers of the benefits of buying a new diamond engagement ring as oppose to antique and custom-made alternatives.

Love at the highest bid: more people are buying engagement rings on eBay