6 Things to Look for When Buying a Diamond Ring

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6 Things to Look for When Buying a Diamond Ring

Since they were first discovered in India thousands of years ago, diamonds have been a treasured gemstone. Today, popular advertisements tell consumers that "a diamond is forever" and "a diamond is a girl’s best friend". Surely, a diamond has come to represent many things. It is a symbol of purity because of its clear colour. Its name comes from the Greek language, and means "unbreakable", thus representing its strength and reputation as the hardest mineral on earth. Often, couples who are to be engaged choose a diamond ring because it is the most precious of all stones, and its strength is symbolic of the strong bond between the future bride and groom.

Before purchasing a diamond ring, buyers should know a bit about diamonds. One of the best sources for information on gems comes from the nonprofit Gemological Institute of America (GIA). They are credited with creating the International Diamond Grading System. Founded in the United States in the 1930s, the GIA’s methods are now the universal benchmarks by which all diamonds worldwide are judged.

Before purchasing a diamond ring, buyers should first consider the four Cs of diamond buying. The four Cs are colour, cut, clarity, and carat weight. In addition, buyers should be sure to closely look at the cost and construction of diamond rings. Once consumers better understand what to look for in a diamond ring, they can find and purchase diamond rings on eBay for a convenient and enjoyable shopping experience.

1. Colour

A pure, perfect diamond is similar to a drop of water; both are crystal clear and colourless. A perfect diamond is transparent. A colourless diamond allows light to pass through easily, which results in the light then being dispersed in all the hues of the rainbow. Diamonds vary in colour from colourless to light yellow.

The GIA created a rating system to determine a diamond's colour. The scale begins with D, which represents colourless diamonds, and ends with the letter Z, which represents diamonds of colour.






Near colourless


Faint yellow


Very light yellow


Light yellow

Although many of the colour variations are not noticeable to the untrained eye, these make a world of difference in the quality of the diamond.

2. Cut

The cut of a diamond refers to its proportions, symmetry, and polish, rather than its shape. A well-cut and polished diamond’s facets allow the most light to be reflected. Because the cut of a diamond is so complex, it is often difficult to analyse, especially to the untrained eye.

The GIA uses a rating system to grade the diamond's cut. The grading scale is split into five categories, which are: excellent, very good, good, fair, and poor. The diamond’s cut is based on how well it interacts with light to create brightness, fire, and sparkle.

3. Clarity

A diamond's clarity is determined by the number and location of flaws the gem displays when viewed under ten times magnification. Diamonds with birthmarks, or inclusions, indicate that the inside of the gem is flawed. Some internal flaws include cloudiness, cavities, or laser lines within the diamond. On the other hand, if the diamond is said to have blemishes, it means the surface is flawed. Some superficial flaws include scratches, nicks, and chips. Because a perfect diamond is very rare, consumers see that most diamonds exhibit inclusions and blemishes. These characteristics interfere with the amount of light that passes through the gem, reducing its brilliance.

The GIA’s grading system to determine the clarity of a diamond is used to rate a diamond’s brilliance. The grading scale has six categories, some of which are divided, for a total of eleven particular grades.

Rating Abbreviation





No inclusions or blemishes visible using 10x magnification; extremely rare


Internally Flawless

No inclusions; blemishes only visible under 10x magnification; less than three per cent of diamonds are internally flawless



Very, Very Slightly Included

Inclusions are hard for a skilled grader to see even under 10x magnification; invisible to the eye when viewed without magnification



Very Slightly Included

Inclusions are easily visible under 10x magnification but can be considered minor; not visible to the naked eye



Slightly Included

Inclusions are viewable to a skilled grader using 10x magnification; SI1 flaws cannot be seen by the naked eye; SI2 flaws are visible to the naked eye if closely inspected





Inclusions are clearly seen under 10x magnification and often to the naked eye; affects brilliance

When a diamond is rated for its clarity, a gemologist studies the size, number, nature, and position of the inclusions and blemishes to rate it. The less flawed the diamond is, the more rare it becomes.

4. Carats

A carat is the weight measurement of a diamond, or any other gem. One carat weighs 0.2 grams, which is about the weight of a paperclip. Each carat is divided into one hundred points. For example, a diamond of 75 points equals 0.75 carats. Carat weight is described as a fraction or decimal, and jewellers usually use quarter increments to refer to carats.

5. Cost

Diamond rings range in price drastically, depending on the colour, cut, clarity, and carat weight. The rich and famous often boast diamond rings in excess of five million pounds, but the average consumer probably does not wish to spend that much. Thus, buyers should decide on a budget before purchasing a diamond ring.

Aside from considering the diamond itself, consumers should think about the ring’s setting. Popular settings are made from different types of metal, such as platinum, or yellow or white gold. Platinum is more expensive than white gold, and white gold is more costly than yellow gold.

6. Construction

Once the consumers know what to look for in a diamond and band, they can check out the different types of ring constructions. There are four common types of diamond ring settings:

  • Channel: In a channel setting, diamonds are embedded into a channel of metal. The row of diamonds is surrounded by the metal ring on both sides, and the top and bottom edges just overlap the diamonds to hold them in place.
  • Prong: A prong is a thin metal strip that sticks up from setting's base. When the stone is set, the tip of the prong is bent over the head of the diamond to anchor it. Usually, one diamond has four or six prongs that hold it in place.
  • Bead: Similar to the way a tulip bulb is set down into a pre-dug hole, in a bead setting, the diamonds are set down into pre-drilled holes.
  • Pave: This setting looks like an intricate honeycomb pattern where many diamonds appear as if woven together.

Buying Diamond Rings on eBay

Once you have determined what ring you want, check out eBay for a large selection. There are many choices available, including rings with different colours, cuts, carats, and clarities from sellers all over the world. Using eBay to purchase diamond rings can save you time and money.

Searching for Diamond Rings on eBay

One of the easiest ways to begin a search on eBay is to type in exactly what you are looking for in the search box on eBay’s home page. For example, enter the phrase "diamond rings". Once you have done this, you are presented with several additional categories from which to choose. For a more refined search, you can use the Advanced Search feature.

Buy Diamond Rings on eBay with Confidence

Sellers and buyers reap many benefits when choosing to shop online with eBay. First, signing up for an account is easy and allows both parties limitless shopping possibilities all under one, safe and secure username. In addition, the eBay partnership with PayPal allows users to protect their personal financial information and save time when completing transactions. This, coupled with over 100 million users on the eBay website, is advantageous to sellers and buyers so that they can conveniently shop and sell, all from the comfort of their homes.


Since being founded so long ago in a remote region of the world, a diamond has maintained its position as the purest, most precious, and often most coveted, gem. A diamond ring is a special piece of jewellery that has long been considered the ultimate gift that, many times, represents the engagement of a couple. Not only does the ring signify an eternal circle that cannot be broken, the diamond’s strength symbolises the unbreakable bond between two people.

When searching for the perfect diamond ring, consumers want to first understand the four C’s of diamonds, which include the colour, cut, clarity, and carat weight of the diamond. Additionally, the cost of the ring as well as its construction should be considered. When ready to purchase a diamond ring, shoppers should check out eBay. eBay offers a vast selection of all kinds of diamond rings. Buying from one of the many sellers on eBay affords shoppers with a convenient and enjoyable experience.

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