Jewelry Guide

The Best Blue Gemstone Engagement Rings

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Blue has always been one of the most popular colors for engagement rings, and with the endless variety of blue gemstones available, there is bound to be a blue stone to suit your style. Blue symbolizes purity, fidelity and love and is the reason many brides look for ‘a something blue’ on their wedding day.

But the questions is: Which gemstone should I choose for my blue engagement ring?

Not all gemstones are created equal, meaning that not every blue stone you love will make for a good engagement ring. One of the most important factors is the durability of the gemstone as this will determine whether or not the stone is suitable for daily wear. In addition, you will also have to consider the price, availability and your own preference when choosing the best blue gemstone for you.

Here we list the best gemstones for a blue engagement ring, the not so great and the gemstones you’re best to avoid.

Recommended Blue Gemstones for Engagement Rings

There are only two types of blue gemstones that most jewelers will recommend for engagement rings – diamond and sapphire.

  1. Blue Diamond Engagement Rings

The best of all blue gemstones, blue diamonds are a stunning choice. Not only is a vivid blue diamond beautiful and eye-catching, but these gemstones are extremely durable, scratch resistant and valuable. On the flip side, most of us can’t afford the huge sums of money that blue diamonds cost as high quality blue diamonds are among the most expensive stones in the world.

Blue diamond

A fancy vivid blue diamond. Find it here.

 

A more affordable option is to go for a synthetic blue diamond like this one which has all the properties of a mined stone. Notice the beautiful depth and color of the stone which is every bit as good as a mined blue diamond. Even experts find it difficult to tell whether a diamond has been grown in a lab or mined from the earth, and many people feel that synthetic options are actually better than their mined counterparts. Synthetic blue diamonds are created in labs and therefore are more economical, environmentally friendly and ethical.

Note that synthetic blue diamonds are still relatively expensive due to the intensive process required to create them. While they are much more affordable than natural blue diamonds, a synthetic blue diamond will still command a high price, especially if it is of high quality.

If your heart is set on a blue diamond, finding a ready-made blue diamond engagement ring can be difficult due to their rarity, meaning that you will most likely have to have yours custom made. Sites like James Allen and Leibish offer a good range of blue diamonds and will work with you to custom create your ring.

  1. Blue Sapphire Engagement Rings

Sapphires are the most popular blue gemstone for engagement rings, with good reason. They are much more affordable and easier to find than blue diamonds, have excellent durability and can be a great investment option.

Blue sapphires rank at 9 on the Mohs scale of hardness, meaning that they are extremely scratch resistant. What’s more, they’re tough and do not easily break or chip. As such, sapphires are the best gemstone, next to diamonds, for engagement rings.

Blue sapphires come in a variety of shades, but opt for a stone with vivid color and with good clarity like the one below. Because sapphires pair so well with colorless diamonds, you can select an engagement ring that marries these two stones beautifully.

Blue sapphire engagement ring

A sapphire surrounded by little diamonds. Find this engagement ring here.

Blue sapphire and diamond engagement ring in halo setting

A colorless diamond surrounded by blue sapphires. Find this engagement ring here.

 

One good option is to have a halo of little diamonds surrounding the center stone of sapphire. If this is a little too blue for you, you can reverse this, instead going for a halo of blue sapphire with a center colorless diamond.

Sapphires, like diamonds, are easy to clean and requires minimal maintenance. They’re ideal for every day wear and you won’t have to keep taking out your engagement ring to protect it.

As with diamonds, if you don’t want to shell out a large sum of money for a mined stone, you can find yourself a synthetic blue sapphire which is exactly the same as a natural stone in terms of its optical and physical properties.

Blue Gemstones to Wear with Care

The following blue gemstones are frequently chosen for engagement rings and can be worn on a frequent basis, but this must be done with care if you want the ring to last. Over time, you may have to replace these gemstones, but note that this can happen to sapphires and diamonds too.

  1. Aquamarine Engagement Rings

Aquamarine, a gemstone that is also a color, is famed for its sea-blue calming hue. The color of an aquamarine is quite distinct, with hints of sea and sky, making it one of the most popular blue gemstones.

Aquamarine engagement ring

A charming aquamarine engagement ring. See it here.

 

This gemstone is fairly hard (7.5 to 8 Mohs) and does not scratch too easily but if you opt for an aquamarine engagement ring, note that it will require extra maintenance. For example, always remove the ring before engaging in activities like contact sports, rock climbing, gardening and weight lifting. Even with all this precaution, you may need to re-cut or re-polish the stone every so often, to remove scuff marks and scratches across the gemstones surface.

It’s also a good idea to have the stone set in a protective setting such as bezel or halo, as this will provide an additional buffer from knocks and scratches against other objects. Avoid a solitaire setting as the aquamarine is more susceptible to damage.

See more aquamarine engagement rings here.

  1. Blue Topaz Engagement Rings

This relatively hard gemstone (8 Mohs) is a good choice for a blue gemstone engagement ring and can last for many decades. Topaz in nature is generally colorless, but because the blue variety is so popular, these colorless stones are heat treated to produce the blue variety that is so in demand.

Blue Topaz Engagement Ring

Blue topaz comes in a variety of shades. This one is a London Blue. See it here.

One of the appeals of blue topaz is that it is affordable and easily available. But over time, the shine and sparkle of topaz will become cloudy and dull as scratches accumulate and the facets begin to wear down. You will have to have the stone re-cut or re-polished, as with aquamarine, and this will take off carat weight from the stone.

  1. Tanzanite Engagement Rings

Tanzanite, from Tanzania, is often called one of the most underrated gemstones in history. Its beauty and color can rival that of even the finest sapphires, and it’s rarer than most gemstones out there. What’s more, tanzanite sources continue to deplete at a fast rate and new mines have not been located. All this makes the tanzanite a highly desirable gemstone.

Tanzanite engagement ring

The blue hue of tanzanite is as beautiful as any sapphire. See this ring here.

A high quality tanzanite gemstone like this one can cost a hefty sum, but it will still be more affordable than a similar sapphire. While it is harder than, say, an emerald, tanzanites are much softer than sapphires. They are easily scratched and their sparkle can fade with time. Take care when purchasing tanzanite as there are many fakes on the market.

Blue Gemstones to Avoid in Engagement Rings

While these gemstones are absolutely gorgeous and will make good jewelry in earrings, pendants, bracelets or even rings to be worn infrequently, they are not recommended for daily wear. As gemstones for engagement rings, we recommend that you avoid:

  1. Turquoise

Turquoise are beautiful in jewelry but are too soft for daily wear in engagement rings. They are porous and therefore highly susceptible to breakage. They also come heavily included.

  1. Blue pearl

Blue pearls are highly valued for their rarity (if natural) and have an intriguing look to them. However, avoid pearls when it comes to engagement rings, unless you are prepared to have the pearl replaced every so often. Pearls are very easily abraded and the nacre can flake off over time. They are not a good choice for engagement rings, unless set in a highly protective setting.

  1. Lapis Lazuli

A beautiful gemstone that has been used for centuries in jewelry, lapis lazuli ranks only 5 to 6 on the Mohs scale. It also easily chips and can break due to the typical inclusions that it is found with. While it’s not a good choice for daily wear, lapis jewelry is simply stunning and very unique and the best part? It is generally very affordable.

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