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October Birthstones

Birthstones are specific gemstones associated with each month of the year. Some months, like October, have more than one birthstone, offering you more choice if you would like to celebrate an occasion with birthstone jewelry.


Birthstones by Month

The current set of birthstones was established in 1912 when the American National Association of jewelers met to formalize the list. Below is the most up-to-date version of the birthstone list.
October Birthstone

January: garnet

February:  amethyst

March: aquamarine

April: diamond

May: emerald

June: pearl and alexandrite

July: ruby

August: peridot

September: sapphire

October: opal and tourmaline

November: topaz and citrine

December: tanzanite, zircon, and turquoise


Each birthstone has a history, legend, and/or special characteristics. October birthstones are no exception.


October Birthstone: Opal

Opal is a beautiful gemstone that is available in a range of colors, often with multiple colors in the same stone. The word opal has several derivations, one of which is the Greek word “opallus,” which means “to be a change.” This likely signifies opal’s changing hues and many variations.


Opal Composition and Significance

Opals are a relatively soft gemstone, formed in near-surface volcanic rock. Generally exhibiting an array of colors, opals flash an impressive rainbow with movement and light. Opals are said to be associated with hope, innocence, purity, and faith.

Opal Colors

Opals can range in color from creamy white to black and often contain blazes of yellow, orange, green, red, and blue. There is tremendous beauty in these contrasting and intermingling colors. Particularly prized are black opals, part of the “schorl” species found primarily in Australia, and “fire opals,” a burnt orange color perfect for autumn, primarily found in Mexico.

October Birthstone: Tourmaline

Tourmaline is a radiant October birthstone with a rich history. Originally mined in Sri Lanka, tourmaline became a popular gemstone in Europe for its variety in shape, color presentation, and depth.


Tourmaline Composition and Significance

The word tourmaline comes from Singhalese (Sri Lankan) and means “something of the earth.” Regarded for bringing peace to its wearer, tourmaline occurs in nature as long prisms or crystals, in varying widths.

 Tourmaline Colors

October Birthstones
Tourmaline is another October birthstone that comes in a broad range of colors, from bold red to mesmerizing teal. Like opal, this gemstone is often treasured for displaying more than one hue, as in “watermelon tourmaline,” which, as the name implies, shows both pink and green.

Selecting and Wearing October Birthstones

Selecting or designing jewelry based on birthstone is loving and meaningful. Thinking of celebrating a birth, engagement, wedding, or other occasion or milestone with an October birthstone? Consider setting a loose opal or tourmaline into a ring or a pendant for a special gift. Or, if you like the idea of jewelry with a romantic past, opt for an antique tourmaline ring for a hand-selected piece from the past with endless hope for the future.

Opal Photograph by Hannes Grobe via Wikimedia Commons



sharon schulz Says:
October 27th, 2013 at 6:07 am

I discovered your website through an advertisement in another site. I’m so glad I clicked onto the ad. I love the history and description that you provide for each birthstone. I look forward to reading it each month. Of course, I also love looking at all your beautiful jewelry. If I were to make a purchase, I would definitely consider Brilliant Earth and it’s wonderful selection.

Thank you.

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