Blue Sapphires

Blue Sapphire is iconic, stunning, and classy. Symbolizing truth and loyalty, and having a hardness of 9/10 on the Mohs Hardness Scale, this gem makes a fantastic engagement ring choice. Couples looking for a unique yet classic ring will love a Blue Sapphire.

Table, Depth & Other Specifications for Ideal Blue Sapphires

A Blue Sapphire’s “cut” is not just its shape, but also how well its facets are aligned. Sapphires are cut to enhance their color, so they are faceted and also analyzed differently than diamonds. As a result, you don’t have to worry about angles and proportions. Instead, to judge a Sapphire, look for a great outline, symmetrical facets, and consistent color. Here’s how:


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AAA (Best)

AA (Good)

A (Fair-Poor)


Sapphires can be any shape. The outline should be pleasing to the eye!




Facet Symmetry

"Facet Symmetry" means that the small cuts all over your gem match each other like a mirror image from right to left.

Mirror Image

Slight Variation



"Windows" mean a watery, light pool in the center of your Sapphire through which you can see your finger.



Gem is See-Through


"Extinction" means dark areas of your gem.

Even Light/Dark

Slightly Too Dark

Gem is Too Dark

Color Recommendations for Blue Sapphires

Color is your top priority when choosing a gemstone like Sapphire. Blue Sapphire can be almost black, denim, and also ice blue! It can also be greenish-Blue or violetish-Blue. The most common Blue is an inky dark Blue, however, the most valuable is a medium “cornflower” Blue. Some couples love a dark blue gem, like Dutchess Kate Middleton, while others prefer a lighter blue for a more traditional “bridal” look. They’re all stunning!

Your Blue Sapphire’s “color” can be described in terms of hue (Blue, greenish-Blue, or violetish-Blue), tone (how light or dark the Blue is) and saturation (how vivid or greyish the stone is). Your stone’s quality is also affected by how consistent the color is. Lower quality Blue Sapphire occasionally shows “color zoning” – streaks of white, green, or yellow – through its Blue color. As you can imagine, this is not pretty. So, we make sure all our Sapphires are a consistent Blue! Here’s how to judge Sapphire color quality:


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AAA (Best)

AA (Good)

A (Fair-Poor)


The main color of your Blue Sapphire

Blue or violetish-Blue

Blue or greenish-Blue

Blue or grayish-Blue


How light or dark your Blue Sapphire is


Light or Dark

Very Light or Very Dark


How vivid or grayish your Blue Sapphire is


Moderately Strong


Color Zoning

If there are streaks of white or different colors in your Blue Sapphire




Clarity Recommendations for Blue Sapphires

Almost all Sapphires have a few birthmarks, called “inclusions,” under magnification. This is your Sapphire’s fingerprint! In high quality Sapphire, these inclusions are not visible to the naked eye (they are “eye clean.”) So, when looking for your engagement ring, we suggest you only consider Eye Clean stones. Here is some guidance on how to choose the right clarity for your special ring:


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AAA (Best)

AA (Good)

A (Fair-Poor)


Eye Clean

Visible Blemishes OK if Not Noticeable

Blemishes Detract From Beauty

Settings that Pair Well with Blue Sapphires

We think the cool tone of Blue Sapphire is best shown off in white gold, palladium, and platinum. However, more traditional couples may love the look of a yellow band with white prongs! Either way, most couples prefer a diamond accented Blue Sapphire engagement ring, as Sapphire’s brilliant color gives the white diamonds a great contrast. Here are our favorite Blue Sapphire engagement rings:

Money Tips

In Sapphire, color always has to be your first and foremost! But, you don’t need “cornflower” blue. Slightly lighter or slightly darker will still be stunning, and WAY less expensive.

3 Things to Ask Your Jeweler

  • 01.

    Photo & Video

    Always ask your jeweler for a detailed picture. Look for pleasing shape, symmetrical facets, and pretty color.

  • 02.

    Inspect It

    Ask the jeweler to pull the gem and actually visually inspect it. Remember to check for consistent color (no streaks!), windowing, and even light/dark areas.

  • 03.

    Measure It

    Sapphire is heavier than diamond is. So, a 2.0 ct Sapphire will actually appear smaller than a 2.0 ct Diamond. Make sure your stone faces up the size you want!

Other Ring Resources

See our in-depth educational guides, which were made to give practical advice with every aspect of your ring.







Gold Palladium & Platinum