Opal & Tourmaline is the Best October Birthday Gifts all time.

Opal & Tourmaline have become the staple birthstones of October. Opal and Tourmaline are both some of the most beautiful and untraditional of all gemstones. Traditionally represented as pink, the tourmaline can come in many colors of the rainbow. Even seen with 3 colors in one stone, it is known as tri-colored watermelon tourmaline. October sure has the most exciting birthone options in jewelry designs.

Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “outback.” The showers soaked deep into ancient underground rock, carrying dissolved silica (a compound of silicon and oxygen) downward. During dry periods, much of the water evaporated, leaving solid deposits of silica in the cracks and between the layers of underground sedimentary rock. The silica deposits formed opal.

Opal is known for its unique display of flashing rainbow colors called play-of-color. There are two broad classes of opal: precious and common. Precious Opal displays play-of-color, common opal does not. Play-of-color occurs in precious opal because it’s made up of sub-microscopic spheres stacked in a grid-like pattern—like layers of Ping-Pong balls in a box. As the lightwaves travel between the spheres, the waves diffract, or bend. As they bend, they break up into the colors of the rainbow, called spectral colors. Play-of-color is the result.

The Color of Opal you see varies with the sizes of the spheres. Spheres that are approximately 0.1 micron (one ten-millionth of a meter) in diameter produce violet. Spheres about 0.2 microns in size produce red. Sizes in between produce the remaining rainbow colors.

Although experts divide gem opals into many different categories, five of the main types are:

White or light opal: Translucent to semi translucent, with play-of-color against a white or light gray background color, called bodycolor.
Black opal: Translucent to opaque, with play-of-color against a black or other dark background.
Fire opal: Transparent to translucent, with brown, yellow, orange, or red body color. This material—which often doesn’t show play-of-color—is also known as “Mexican opal.”
Boulder opal: Translucent to opaque, with play-of-color against a light to dark background. Fragments of the surrounding rock, called matrix, become part of the finished gem.
Crystal or water opal: Transparent to semitransparent, with a clear background. This type shows exceptional play-of-color.
Opal october birthstone jewelry is one of the best idea for october birthday gift. Check opal october birthstone jewelry.

Tourmalines come in a wide variety of exciting colors. In fact, tourmaline has one of the widest color ranges of any gem species, occurring in various shades of virtually every hue. Many tourmaline color varieties have inspired their own trade names:

Rubellite is a name for pink, red, purplish red, orangy red, or brownish red tourmaline, although some in the trade argue that the term shouldn’t apply to pink tourmaline.
Indicolite is dark violetish blue, blue, or greenish blue tourmaline. Check below tourmaline jewelry set.
Paraíba is an intense violetish blue, greenish blue, or blue tourmaline from the state of Paraíba, Brazil.
Chrome tourmaline is intense green. In spite of its name, it’s colored mostly by vanadium, the same element that colors many Brazilian and African emeralds.
Parti-colored tourmaline displays more than one color. One of the most common combinations is green and pink, but many others are possible.
Watermelon tourmaline is pink in the center and green around the outside. Crystals of this material are typically cut in slices to display this special arrangement.
Tourmaline birthstone jewelry is another great idea for october birthday gift.

Forest Green Rose Cut Tourmaline Ring

Designer: Claudia Berman

Tags

Shipping Date

Shipping Date

More in this Collection

Apostolos Textured Men's Ring with 18k Gold Bar Highlights

Apostolos Jewelry

Apostolos Fan Ring in Silver and 18k Gold

Apostolos Jewelry

Sky Blue Deco Ring

Lika Behar

Cypress Solitaire Ring with 4mm Salt & Pepper Diamond 14K Gold

Jenny Reeves

Cypress Solitaire with Rose Cut Pear Shape Salt and Pepper Diamond in 14K Gold

Jenny Reeves

Statement Ring with Ruby and 18k Gold Highlight

Apostolos Jewelry

Blue Topaz and Diamond Halo Style Pompei Ring

Lika Behar

Jenny Reeves Bedrock Band - Moss Agate

Jenny Reeves

Aura Shield Ring with Chrysoprase

Jenny Reeves

Ocean Ring 22K Gold with Marquise Shape Opal Doublet & Diamonds

Lika Behar

Pompei Ring with Hammered Gold Dome Top & Diamonds

Lika Behar

24K Gold Diva Ring with Green Tourmaline and Diamonds

Lika Behar

Teal Blue Australian Parti Sapphire on 18ct Yellow Gold Band with Accent Diamond

Shimara Carlow

Diva Ring with 22K Gold Emerald Cut Pink Tourmaline Ring

Lika Behar

22K Yellow Gold "Love" Green Tourmaline Stacking Ring With Round Diamonds

Lika Behar

Shield Ring with Green Tourmaline

Jenny Reeves

24k Gold & Oxidized Sterling Silver Flat "Fusion" Band

Lika Behar

Partially split silver shell ring with 3pt diamond and 22K gold plated interior

Paul Finch

Wax and Wane, Ring with 3 forms

Annie Tung

Green Tourmaline and Diamond Solitaire Ring Set

Shimara Carlow

Four Worlds Ring

Mariella Pilato

Four Directions Ring

Mariella Pilato

Lodolite Rings

Mariella Pilato

Double Trouble Ring

Mariella Pilato

Oval Iris Ring

Mariella Pilato

Giza Ring

Mariella Pilato

Serpent's Rest Ring

Mariella Pilato

Modern Diamond Ring

Marcel Roelofs Designs

Stockholm Crosswire Oxidized Silver Ring with 7 Diamonds in 24k Gold Bezels

Lika Behar

Apostolos 10 mm Wide Ring in Oxidized Silver and 18k Gold.

Apostolos Jewelry

Apostolos Statement Ring with Champagne Diamond

Apostolos Jewelry

Apostolos 5.5 mm Ring with Ruby and 18k Gold Hightlights

Apostolos Jewelry

My World Ring Aquaprase and Cognac Diamonds

Lika Behar

Alaria Solitaire with Rose Cut Pear Diamond Ring

Jenny Reeves

Twist Ring in 24K Fusion Gold & Oxidized Silver

Lika Behar

Olivia Shih LGF Egg Ring - 14k Yellow Gold (6mm)

Olivia Shih

Murmur Pebble Ring

Olivia Shih