Those with December birthdays are lucky enough to have four birthstones to choose from — zircon, tanzanite, turquoise and blue topaz. All of these stones feature stunning shades of blue. With so many hues available, you are sure to find one to complement the skin tone of your intended gift recipient. Read on to learn all about these incredible gemstones.


Zircon is the oldest gem ever to be discovered, having existed on Earth since the dawn of time. The stone itself is colorless, making it a more affordable substitute for diamonds. In fact, the stone often has a brilliant, scintillating quality on par with fine diamonds. Often confused with synthetic cubic zirconia, zircon is a natural gemstone. Although it is most commonly clear in color, it can be found in a variety of shades, including gold, red, green, blue and even brown. Many cultures believe that zircon can help with sleep, protect against evil and welcome prosperity.


Tanzanite is one of the more recently discovered gems and is a rare variation of the mineral zoisite, found only in Tanzania. It has a tone similar to that of sapphire, but fine stones often display flashes of red. Thanks to a property known as pleochroism, tanzanite can reflect different colors as you view it from different angles. When cutting the stone, the cuts must be placed correctly in order to showcase the blue and violet shades while downplaying notes of brown. Tanzanite is not only a December birthstone, but also an excellent gift for a 24th wedding anniversary.

Blue Topaz

Throughout history, topaz was known as a yellow gem, and its golden variation is the November birthstone. However, in its pure form topaz is colorless. In nature, blue topaz usually occurs as a pale blue rather than bright or deep blue. The brilliant blue shades of topaz are usually achieved by artificial means, by irradiating and heating colorless topaz. These processes are widely accepted in the gem trade, since they result in permanent color change.

When compared to other gemstones, topaz is relatively inexpensive, making it affordable for just about anyone. Thanks to its broad spectrum of available colors, there is a topaz to suit virtually every personal style as well. With so many options, you are sure to find the perfect shade for the one you love.

Tanzanite is one of the more recently discovered gems and is a rare variation of the mineral zoisite, found only in Tanzania. It has a tone similar to that of sapphire. Thanks to a property known as pleochroism, tanzanite can reflect different colors as you view it from different angles.


Turquoise is one of the first stones to be mined specifically for use in jewelry, thanks to its relative softness when compared with other minerals and gemstones. Instances of turquoise jewelry date all the way back to 3000 BCE in ancient Egypt, but is also common in Native American jewelry. Turquoise has long been revered for its beautiful shade of blue, reminiscent of a robin’s egg. It is believed to deliver power and protection to the wearer. Aside from being a December birthstone, turquoise is also a traditional gift for 11th wedding anniversaries.

Choosing the Right Stone

Zircon, tanzanite and blue topaz are evaluated in a manner similar to diamonds. The four Cs (cut, color, clarity, and carat) determine the value of the stone. Turquoise, on the other hand, is one of the few stones that employs different evaluation factors. Its metrics are color, matrix, hardness, and size, with pure sky blue being the most valuable. Green tones lower the value of the stone, but it all comes down to personal preference when choosing a stone.

Create a custom piece of jewelry using your loved one's birthstone at Worhtington Jewelers! Contact us!

Here at Worthington Jewelers, we have a vast array of gemstone jewelry for you to choose from, including the December birthstones. For something even more special, one of our designers can create a custom piece of jewelry for you using the gem of your choice. Visit our shop today to learn more!