Your Guide to Buying a Diamond Necklace

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Your Guide to Buying a Diamond Necklace

There's nothing quite as unique and beautiful as a diamond. Diamond jewellery is often given to show someone how special and unique they are to you. Whether you are purchasing a diamond necklace for yourself, or for your special someone, it is a gift that can last forever. Diamonds are known for their unmatched beauty, brilliance, and meaning. Often times, diamonds are associated with romance, but diamond necklaces are sure to sparkle regardless of the occasion. Diamond necklaces can be purchased in brick and mortar jewellery stores, or online using eBay..

Purchasing a diamond depends on budget, style, and personal taste. While making a decision can seem overwhelming at times, understanding the different considerations when purchasing a diamond necklace helps you make an informed purchasing decision. Unlike many other forms of jewellery, diamond jewellery is made to last a lifetime. By choosing a quality diamond and chain, you can give a gift that lasts a lifetime without spending a lifetime saving for one. When purchasing a diamond necklace, it is important to understand the steps to choosing the right necklace, as well as the 4Cs of buying diamonds.

Determine a Budget

Before beginning your search for a diamond necklace, it is important to determine a budget. Purchasing a diamond necklace can be a significant investment, but does not require one. With the many considerations when choosing a diamond necklace, it is easy to find a diamond necklace in any budget range.

Choose a Necklace Chain Metal

When purchasing a diamond necklace, many people prefer to choose a precious metal for the necklace chain so the chain lasts along with the diamond. Precious metals include gold, silver, and platinum. Precious metals are known for their lustre, and are also less reactive than other metals when they come in contact with skin. Choosing a necklace chain metal is based on personal preference. Before purchasing a diamond necklace, it is important to understand the common types of metal used for jewellery to determine which type you prefer.


Gold is one type of precious metal known for its rarity and lustre. Gold also tends to be very soft, so when used in jewellery, it is often mixed with alloy metals such as copper and zinc. The percentage of gold is determined by the gold's karat weight. 24 karat gold is the purest gold, and purity decreases as the karat weight goes down. The downside to pure gold, such as 24 or 18 karat, is that it is much less durable than lower karat options and is more likely to become misshaped over time. There are three different types of gold to note, each with characteristics worth learning about.

Type of Gold Jewellery



Rose Gold

Pure gold mixed with alloy metals.

Gold to copper ratio is generally 3:1

Gold with a reddish-rose colour.

White Gold

Pure gold mixed with white alloy metals

Examples: zinc, nickel, platinum, and silver.

Bright, white colour similar to silver or platinum.

Yellow Gold

Pure gold mixed with different alloy metals

Examples: copper and zinc

Gold with a yellow hue.

Choosing which type of gold you prefer is based on budget and personal preference. White gold is often chosen as a more affordable alternative to platinum, yellow and rose golds are often purchased for their lustre and beauty. A more affordable option is to purchase a gold-plated chain, which is a chain using a base metal that is electroplated with gold. The downside to this is that the plating can eventually rub off the chain with excessive wear. When choosing gold, it is important to determine which colours and karat weight fit best with your needs and budget.


Much like gold, silver has always been sought after for its beauty and lustre. Since silver is also a precious metal, it is also very soft and can be damaged easily. To increase durability, silver is mixed with different alloy metals. Fine silver is the purest form of silver, but has the least amount of durability. Sterling silver is the most popular mix of silver, and is considered standard among silver grades, which provides strength to withstand regular wear.

Mixed silver, or silver-plated necklaces, are a more affordable option for purchasing silver, since there is less pure silver and more mixed alloy metals. Silver plating is often very thin, and can rub off the chain fairly easily. Silver is the most popular metal choice for jewellery. Silver is known for it's lustre, and often outshines gold. In addition, silver matches all skin types, and can be dressed up, or easily dressed down for casual wear. Also, silver is generally more affordable than other types of precious metals.


Platinum is a lustrous, white metal that is considered more precious and rare than gold. Platinum is one of the most expensive metals, and is much heavier than other precious metals. Like other precious metals, platinum is commonly mixed with other metals, but must be 95 per cent platinum to be labelled as so. Platinum mixtures with less than that are typically identified as platinum alloy. Despite the high cost, platinum has become an increasingly popular metal in jewellery.

Stainless Steel

Although stainless steel is generally not used in diamond necklaces, it is a much more affordable option than precious metals when it comes to jewellery. Stainless steel is known for it's industrial look, which looks more like steel with a touch of flash. It is often used for machined pendants, dog tags, or other experimental forms of jewellery.

Understand the 4Cs of Buying a Diamond

The next step in purchasing a diamond necklace is understanding the 4Cs. When purchasing a diamond, the 4Cs: colour, clarity, carat, and cut, should be considered. The 4Cs are used to assess the value of the diamond compared to a similar sized perfect comparison.

Diamond Colour

Every diamond is graded based on a scale from leading gemological industry organisations. While diamonds come in a wide variety of colours, generally only white diamonds are graded. Clear, colourless diamonds have a grade of D, with grades ranging to light yellow diamonds with a grade of Z. The grades go down based on how much colour a stone possesses. Colourless diamonds are ideal, but can also be quite expensive. They are sought after because of their intense shine, which is a reflection of the light can easily pass through the colourless stone.

Diamond Carat

Diamond carat is based on the size of the diamond, which can significantly affect the value of the jewellery piece. Carats are based on 100 points, and larger stones mean greater value. A diamond with 0.75 carats are much smaller and less valuable than diamonds with higher carat weight, such as 1.0 or 2.0. Diamonds with higher carat counts, however, are going to be much pricier than smaller options.

Diamond Clarity

Diamond clarity is based on the presence of imperfections in the stone and is a large factor in determining the value of the diamond. Imperfections such as cracks or tiny flecks of black carbon can often be seen by jewellery buyers, but generally go unseen by the naked eye. Diamonds can also be born with inclusions, which interfere with the passage of light through the stone. The more inclusions and imperfections on the stone, the less clarity and value. Flawless diamonds however are very rare and incredibly pricey, so clarity should be chosen based on preference and budget.

Diamond Cut

Despite what most people think, diamond cut refers to the style or design guide used when shaping a diamond, not the actual shape of the diamond. The diamond cut refers to symmetry, proportioning and polish of the diamond and how these factors affect its ability to shine. Diamonds that are poorly cut result is less luminous and valuable stones. The different cuts of diamonds include the following shapes: emerald, heart, oval, cushion, pear, princess, radiant, and round. The shape of the diamond is based on personal preference, and a clean cut diamond is brilliant regardless of the shape.

How to Purchase a Diamond Necklace on eBay

After understanding which type of chain and diamond fit within your budget, you can find exactly what you are looking for on eBay.. If you need to browse the different options to make up your mind, eBay is the perfect place to browse thousands of different diamond necklaces in order to find the perfect necklace for you and your budget. To begin your search, you can start by searching specific keywords on the eBay home page. If you already know what you are looking for, you can search for something specific, such as 'rose gold diamond necklace&'. To browse through different options, you can broaden your search to 'diamond necklace&' and see the differences in types and price.

eBay also makes it easy to stick within your budget when purchasing a diamond necklace by setting your maximum price. By doing so, eBay only delivers options that are within your price range so you do not have to waste time searching through necklaces outside of your budget. No matter who you are shopping for, you are sure to find exactly what you are looking for on eBay.


Diamond necklaces come in many shapes, colours, and sizes and are as unique as the person wearing them. Choosing a diamond necklace is about more than personal preference, it is about understanding all of the options and which factors best meet your needs. Some metals are more durable than others and make it easy to wear the jewellery regularly, while others have less strength and are made to only be worn on special occasions.

In addition, the 4Cs in diamonds can help you to make an informed purchase decision when buying a diamond, and also help you understand the value of your diamond. Although purchasing a diamond necklace can be a significant investment, finding diamond necklaces on a budget is also very plausible, especially with the large selection on eBay's website. Despite the cost, diamond necklaces are often made to last and can be the perfect gift that never goes out of style.

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