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

Rose Cut Cypress Stacking Set

Jenny Reeves

Rose Cut London Blue Topaz Set

Claudia Berman

Rose Cut Spessartite Garnet Set Cuff in 18k Gold

Claudia Berman

Rose Cut Smoky Quartz Necklace in Gold & Silver

Claudia Berman

Cloud Forest Rose Cut Peridot Stacking Ring - Bright

Jenny Reeves

Cloud Forest Rose Cut Montana Sapphire Stacking Set - Bright

Jenny Reeves

New Age Band with 4 Cube Diamonds

ioulia efimova

Oval Eye-Clean Rose Cut Natural Green Australian Sapphire 1.81 Carat

Lireille

Natural Cushion Cut Salt And Pepper Rose Cut Diamond Grey Color 1.06 CTW

Lireille

7 Stone Round Rose-Cut Natural Diamond Gold Ring

Lireille

Gold Encrusted Reticulated Silver Ring with Spessatite Rose Cut Garnet set 18k Gold Bezel

Claudia Berman

OCTAVIA Rose Quartz Ring

Katie Poterala

Blue Gold Rose Cut Montana Sapphire Ring

Claudia Berman

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

Jenny Reeves

Rose Cut Salt and Pepper Diamond .34Ct Set Ring in 18k Yellow Gold

Claudia Berman

Rose Cut Brazilian Watermelon Tourmaline Set Ring in Solid 18k Yellow Gold

Claudia Berman

Large Rose Cut Bicolored Tourmaline Set Necklace in 18k Gold

Claudia Berman

14K Gold Ring with Rose-Cut & Faceted Diamond

Lireille

Roots with rubies on hook earrings

Lori Swartz

18k Gold Rose Cut Diamonds Earrings

Claudia Berman

18k Gold Rose Cut Garnet Sterling Silver Necklace

Claudia Berman

Salt and Pepper Rose Cut Diamond Earrings

Claudia Berman

Peridot Silver Drop Pendant with 18k Gold

Claudia Berman

Top of the World Diamond Engagement Ring

Ioulia Efimova

Cloud Forest Rose Cut Tanzanite - Bright

Jenny Reeves

New Age Band with 3 Rosecut Diamonds

Ioulia Efimova

New Age Band with 5 Rosecut Diamonds

Ioulia Efimova

14K Gold Natural Rose-Cut Diamond Eternity Band

Lireille

Rose Cut Round Golden Diamond Ring

Claudia Berman

Rose Cut Salt and Pepper Cushion Diamond Ring

Claudia Berman

Rose Cut Indicolite Blue Tourmaline Stone Ring

Claudia Berman

Alaria Solitaire with Rose Cut Pear Diamond Ring

Jenny Reeves

Pink Rose Cut Sapphire and Champagne Diamonds Post Earrings

Shimara Carlow

Oxidized Silver Sapphire with Diamond Accent Studs Earrings

Shimara Carlow

Rose Cut Pear Shaped Salt and Pepper Diamond Set Ring in 18k Gold

Claudia Berman

Aquamarine Rose Cut Oval with Salt and Pepper Diamond Earrings

Shimara Carlow

22k gold Bicolor Pink/Peach Rose cut Brazilian Tourmaline Necklace

Claudia Berman