Technical Help. Diamonds with the Most Sparkle

Diamonds with the Most Sparkle

Diamonds with the Most Sparkle

There's no doubt that a sparkling diamond engagement rings draws people's attention, and with your dazzling diamond engagement ring, you'll be ready to join them.

In the world of diamonds, 'brilliance' refers to the intensity of light reflections seen by eye through the crown (or top) of a diamond as well as the overall whiteness of the stone. What we're really talking about, is how much the diamond sparkles.

Cut (and shape)

Cut is a critical factor for determining a diamond's brilliance or sparkle. A diamond cutter crafts the diamond to specific proportions to make the best use of light. The more precise these proportions are, the more the diamond sparkles.

So, which is the best diamond cut and shape for brilliance? Everything else being equal, the general rule of thumb regarding cut, is the more perfectly proportioned facets the diamond has, the more it will sparkle, as there are more surfaces for the light to bounce off of.

Diamond cutters over the years have mathematically determined how cut can allow the most light to shine through a diamond, allowing for the most brilliance. An ideal combination of the right angles, the right number of facets, and the right facet sizes on a diamond will maximize how the light flows and refracts through the diamond. For more information on how the cut interacts with light to create sparkle, visit our guide on Understanding the 4C's.

At H Samuel, we have developed the exclusive flower cut that can be found in our most premium diamond range - 'The Forever Diamond'. This unique cut features 73 beautifully proportioned facets, which is 15 times more than the average brilliant cut diamond, resulting in exceptional sparkle and radiance.

If you're looking for a brilliant cut, you're not limited to a round diamond. You can also get a brilliant cut with the 58 facets in a princess cut diamond, also known as a square or a modified square brilliant cut diamond, as well as cushion, radiant, marquise, oval, pear and heart shapes. For further information on the range of diamond shapes available, visit our diamond shape guide.

Unless the "make" (polish & symmetry) is more important, diamonds are usually cut to maximize weight. Cutters are paid by how much weight is retained, not necessarily by how pretty it looks when finished. Luckily our vendors supply us with well cut, brilliant stones to offer our customers.

Clearing up clarity

Clarity can also affect the brilliance of a diamond. The main things to look out for are inclusions, which are internal flaws in the diamond. Large clouds or feathers may affect the sparkle by blocking the light paths within the diamond. Almost all diamonds contain very small imperfections, not usually detected by the naked eye, however the lesser the inclusions, the more 'flawless' and valuable the diamond will be.

For more in-depth information on how diamonds are graded for clarity, and how this affects the sparkle of a diamond, visit out diamond 4Cs Clarity section.

The Forever Diamond collection is our range of certificated diamonds. The larger diamonds within this range have been independently certificated by IGI (International Gemmological Institute) for your guarantee of quality and beauty.

Colour matters

To a certain degree, a white or colourless diamond will more cleanly reflect and refract the light, increasing its brilliance. But it's a small degree.

Well-cut, brilliant diamonds can give you a little flexibility on what you choose from the colour scale. As well as being cut to maximize shape, they're also cut to increase sparkle, so diamonds will mask small colour differences. In a square diamond, you may see colour at the corners, while a round diamond will be less affected by colour.

For more in-depth information on how diamonds are graded for colour, visit out diamond 4Cs Colour section.

The importance of context

Once you've chosen the perfect diamond, you're going to want to show it off in the best possible frame, so to speak. How the stone is set in or above the band, and which precious metal you choose can both work to enhance its sparkle factor.

When considering how to set your centre stone, bear in mind that a claw setting literally lifts the gem away from and above the band, letting in light from almost every angle and accentuating the diamond's brilliance. Though it may look like a delicate setting, platinum claws are strong and secure.

The side stones in some bands can also help heighten the overall brilliance of a ring; especially the many tiny diamonds in a pavé or other invisible setting. This added sparkle can give the ring an exceptionally glamorous finish.

White metals naturally accentuate the brilliance and sparkle of a diamond. A matte finish allows the diamond to take centre stage while a shiny finish makes maximum impact. On the other end of the spectrum, yellow gold adds an element of warmth (and a sense of tradition) to an engagement ring. Many rings will combine both to maximize the beauty of the diamond in focus.