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Knowing the 5 C’s of Diamonds | Boston Diamond Dealer

One of the most memorable days in a couple’s life is the day they get engaged – especially if it’s in the beautiful city of Boston! But before you get there, you’ve got to buy the ring. The process of finding the right Boston Diamond Dealer in this lovely city and in most others can be daunting, and even a little intimidating. How do you know what to buy? Where do you go and what’s best? The first step to purchasing the perfect diamond engagement ring is to know the 5 C’s.

Carat – The weight of a diamond is measured in Carats. One Carat is equivalent to 1/5 of a gram. The greater the weight of the diamond, the more expensive it will be. For example, a one carat diamond ring will cost more than a ring with three smaller diamonds that have a cumulative weight of one carat.

Color – The color of a diamond is graded by letter. The most perfect and colorless grade is a D, with each following letter having slightly more color. The less color in a diamond, the more rare it is. Grades up to an H are colorless to the naked eye. The farther you go through the alphabet, the more yellow the diamond contains.

Clarity – The clarity level measures the flaws, or inclusions, of a diamond. These can be spots, clouds or cavities in the diamond itself. The clarity level is rated from SI (slightly included) to VVS (very, very slightly included). While the level of inclusions will affect the quality and price of the diamond, most cannot be seen by the untrained eye.

Cut­ – Not to be confused with the shape of the diamond, the cut measures the workmanship of the diamond. The cut can enhance the luminosity and sparkle, and can hide any flaws or inclusions.

Certification – The lesser known “5th C” is for Certification. It’s crucial to review the diamond certificate to protect your investment and verify its authenticity.


In addition to the diamond, you should know your metal choices for ring settings. The most popular are white gold and platinum. While white gold is the more affordable option, there is no such thing as pure white gold. To create this, yellow gold is dipped in rhodium to give it the bright white silvery color. This will have to be re-dipped every several years to keep it from reverting back to its original yellow color. Platinum is the more expensive option, as it is the rarer of the two. Unlike white gold, platinum is natural in its silvery tone but does dull over time and lose its shiny luster. Regardless of each one’s slight detractions, both are good options depending on what you’re looking for and the care you’re willing to put into it.

Bromfield Jewelers in Boston is a professional certified diamond dealer who cares enough to work with you, discuss all your options, and to help you find the perfect ring for your perfect day!

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