Diamond Choices: Carat, Color and Clarity

To serve our clients better, we offer a range of diamond choices to suit any tastes or budgets. If you’re interested in learning more about our diamond selections, along with our unique “no diamond” option, you’ll enjoy this helpful quick guide.

No Diamond Option - If you already own a diamond or you prefer to buy your own precious gemstone for use in one of our Celtic rings, you’ll love our convenient “no diamond” option. When you select this option while ordering at our website, you’ll be able to purchase a ring without a gemstone, and you’ll be free to add your preferred diamond when your Celtic ring arrives at your door. By giving you the freedom to choose a ring without a diamond, we provide the sort of flexibility that you really deserve. If you want to use a diamond that is one carat in weight or larger, we may need to modify your setting to fit the bigger diamond. Sometimes, we will need to charge you extra for this type of adjustment. To find out more, contact our team of Celtic jewelry specialists through email or by telephone.

Please note: before proceeding with your transaction you must already have your diamond or at least know the exact specifications of the diamond you plan to purchase. Please enter the diamond specifications in the "Customer Notes" field on the checkout page

For brilliant cut diamonds we need to know the carat weight of the diamond e.g. 0.43cts.

For princess cut diamonds we need the carat weight, but we also need the width and length of the diamond e.g. 3.36mm x 3.57mm. The image below demonstrates exactly what these are:

Princess Cut Diamond

Diamond Carat - The size of your diamond is also known as its “carat weight”. To help you choose the right size of diamond for your tastes and budget, we offer 3 different diamond sizes, ranging from one quarter of a carat to half a carat in weight. When you select a Celtic engagement ring from our website, you will see a convenient drop-down menu that allows you to select the ideal gemstone. If you’d prefer a size that we don’t offer, please contact our team today. We are proud to offer a special service to our clients, whereby we source out the perfect diamond (of your preferred size and shape), and then place it in your favorite Celtic engagement ring setting. By giving you access to a range of carat weights, we open up possibilities for you to find your ideal gemstone and Celtic engagement ring.

Please note that for our standard carat weight offerings, we operate on a margin allowance of 0.02ct either side. So, for example, in the case of a 0.33ct diamond, you could receive a diamond between 0.31ct and 0.35ct. However in most cases it will be at least 0.33ct.

Diamond Color - When diamonds are graded, they are assigned letter values that indicate their shade. The most colorless (and desirable) diamonds will be designated as E or F stones, while G, H, I or J stones will be classified as “nearly colorless”. In general, colorless diamonds will have a very high monetary value, which will greatly increase the value of the gemstones. In some cases, the letter grades we’ve discussed here will put these types of diamonds out of the reach of many consumers. Luckily, there are other diamonds available that do have a hint of color, while still appearing quite colorless to the naked eye, and these are graded from K through P. Very colorful diamonds, such as canary diamonds (bright yellow), and pink diamonds will be called “fancy” diamonds, and they may be quite rare and precious.  As you can see, the value of colorless and very colorful diamonds are higher, while slightly colored diamonds are usually more affordable.

Diamond Clarity – A diamond that is perfectly clear will have no flaws (also known as occlusions), and it will be graded as (FL). This type of precious gemstone is considered extremely rare, and it will always fetch a high value in the marketplace. In general, customers who search for diamond engagement rings will look for more affordable diamonds that do have some occlusions. Mostly, these flaws are undetectable, except to diamond specialists who use specific tools to inspect diamonds for occlusions. Typically, diamonds used in engagement rings will be assigned different grades based on the number of flaws that are visible to diamond specialists; a good rule of thumb is to buy a diamond in the SI category (flaws will only be visible with a 10x microscope), as it will be a very high-quality stone that is still affordable.