Diamonds are a girl’s best friend

...the ultimate guide to finding the perfect sparkler.

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Are you a hopeful groom-to-be looking for diamonds for a Valentine’s Day proposal?


We know it can be daunting buying diamonds, so we’re giving you the know-how to make sure you’re an expert before you go shopping – it’s bound to impress your wife-to-be!

Diamond expert Jonathan Stoner has had 20 years experience in the business. So follow his guide on the all important Four C’s – colour, clarity, cut, and carat weight.


As diamonds are organic, they all have some degree of colour. The less colour the diamond has, the more rare it is and therefore, the more expensive it will be.

Diamonds are graded on a scale of D to Z with D being the clearest. Jonathan’s advice is to pick the highest grade that your budget will allow.

If you’re looking for something unusual, and money’s no object, you can also buy diamonds in colours such as reds, yellows, and blues. If they are naturally this colour (and not artificially treated) they are harder to come by, expensive, and very desirable.


Clarity is determined by features like surface blemishes. The fewer blemishes, the clearer the diamond and the better the quality.

So when you’re choosing your diamond, Jonathan recommends one that looks clear to the naked eye. After all, that’s what other people will see.

The clearest stones are expensive and can only be identified as flawless under a jeweller’s magnification glass.


Cut is all do with symmetry. It’s also down to the skill of the craftsman and how well he is able to balance the stone so that light reflects back from the ring.

A quality cut means that more light is reflected from the stone – so look out for a ring that sparkles as this shows it’s been cut well.

Carat Weight

A useful guide is that a small paper clip weighs about one carat. And diamonds are weighed to a thousandth of a carat.The larger jewels are more rare, so a heavier single diamond costs more than individual smaller diamonds.

Your budget will determine the size of diamond you choose but it will also be down to personal taste. Some of you may want the biggest rock you can afford, while others may prefer a ring with several smaller diamonds.

Jonathan’s advice when choosing your wedding or engagement ring is to find something you know your bride will be comfortable with. Look at other jewellery she wears, or ask one of her friends for advice. After all, she’ll need to be happy wearing it for years to come.


Click here for more info on Phillip Stoner Jewellery.