Thursday Featured Item – Pink Sapphire Sterling Silver Pendant Necklace SP9494

2.5 cts Round Cut Pink Sapphire Sterling Silver Pendant

Gemstone:
Lab Created Pink Sapphire
Round Shape
8 mm diameter
2.50 carats
Rich Powder Pink Hue with Brilliant Sparkle.

Pendant:
1.80 grams
Pure Sterling Silver
.925 stamp

Pendant features exceptional Design, Craftsmanship and Rhodium finishing.

Perfect gift for Mothers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion.

Money Back Guarantee. Includes a 18 inch Sterling Silver Box Chain and Signature Gift Box.

Peora Style SP9494

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Thursday Featured Item – Genuine Peridot Gemstone Sterling Silver Earrings SE6792

1.5 cts Oval Cut Peridot Sterling Silver Earrings SE6792
Gemstones:
Genuine Peridot
2 pieces
Oval Shape
7×5 mm
1.50 total carat weight
Rich Leaf Green Hue

Each earring measures 3/8 x 1/2 inches and weighs 2.10 grams together.

Earrings feature one of a kind design with a beautiful finish. Earrings are in pure Sterling Silver and stamped .925.

Style SE6792

The Cat’s Eye Phenomenon

SP10762

In gemology, Chatoyancy is the term used when a gemstone shows the cat’s eye effect. Chatoyancy is caused by fine fiber-like inclusions in a gemstone which channel the reflecting light into a narrow band that resembles the eye of a cat. Of all the gemstones that exhibit cat’s eye, Chrysoberyl Cat’s Eye is the best known. Chrysoberyl, of which Alexandrite is a member, has the strongest and most distinct cat’s eye effect of all gemstones. Other chatoyant gemstones are Quartz (tiger’s eye), Beryl (Aquamarine and Emerald), Tourmaline and Moonstone. Cat’s Eye are usually cut in a smooth cabochon cut to enhance the phenomenon. The name “Cat’s Eye” by itself refers only to the Chrysoberyl cat’s eye. Any other gemstone exhibiting the cat’s eye effect will also have the name of the gemstone, for example, “Tourmaline cat’s eye.”

Abstract Fuchsia Pink Cat's Eye Sterling Silver EarringsSimilar to chatoyancy is Asterism, where instead of a single band channeling the light there is a brighter star shape in the stone. Sapphires exhibiting asterism are generally the most popular but many other gemstones can be found with this phenomenon. Some of the known star gemstones include: corundum (ruby, sapphire), quartz, garnet, spinel, chrysoberyl, and moonstone.

 

 

 

If you are interested in finding out more about Chatoyancy or Asterism, here are some links:
Minerals.net
GIA.edu
JCK
Cat’s Eye Alexandrite
Wiki – Chatoyant
Wiki – Asterism

Sneak Peak at Some New Rings

For the few of you who actually see our blog, I figured I’d share a little sneak peak at a few of the new custom designed Sterling Silver Gemstone rings we have been working on. We created the designs from scratch, feeding off some of our favorite popular styles out there and then we combined, enlarged and tweaked them to fit our idea.

So here we are: 11mm Trillion, 11mm Round, 11mm Heart, 11mm Cushion, 14 x 7mm Marquise and 14 x 10mm Oval. These will be available in several colors and of course the standard sizes 5 to 9 as usual. We will have a variety of Emerald, Blue Sapphire, Swiss Blue Topaz, Alexandrite, Citrine, Green Amethyst (Prasiolite), Purple Amethyst, Ruby, Pink Sapphire, Yellow CZ and Padparadscha Red Sapphire. All designs will not be available in all gemstones. However, all six designs will be made in the first five, Emerald, Blue Sapphire, Swiss Blue Topaz, Alexandrite and Citrine. As you can see from the Emerald prototypes below, the color is just amazing with these big stones! We’ve just placed the final production order so if we’re lucky they might be in by the Holidays.

On a side note, I’ve been doing some experimenting with DIY coloring of Titanium by anodizing. Pretty interesting stuff. Hopefully I can put together a post on it here sometime next week. I’m no expert but I’ll share what I’ve learned.

Have a great weekend

R2913 R2914 R2915 R2916 R2917 R2934

 

Peridot – August’s Birthstone

Peridot is a unique green colored gemstone from the Olivine mineral family. It can range from a quite yellow-green to olive green to brownish green. The rich slightly olive green is the most desired.R61918

Peridot is one of the few idiochromatic gemstones of the world, meaning that its color comes directly from its mineral chemical makeup and in turn it has only one color. Whereas many other gemstones’ colors come from the trace elements present along with the mineral composition and can be various colors depending on which trace elements are present. Peridot’s chemistry is made up of Silicon (Si) and Oxygen (O) along with Magnesium (Mg) and Iron (Fe). The richness of green depends on the amount of Iron content.

Peridot is fairly soft in gemstone terms, but harder than most metals. It is only 6.5-7 on mohs scale which puts it below most of the other common precious and semi-precious gemstones. It can scratch, crack or break if it is abused. Peridot is not resistant to acids like many other gemstones and will react unfavorably in a rhodium bath if not protected properly. Peridot is generally quite transparent but inclusions can create a soft or milky appearance.SB3660

The majority of the world’s Peridot gemstone supply comes from an Apache Native American reservation in Arizona, but it can be found on most of Earth’s continents in smaller quantities. Peridot is mostly found in smaller sizes, less than 5 carats, but any gem quality Peridot larger than 2 carats will exponentially increase in price the larger the size. The largest cut Peridot is in the Smithsonian in Washington, D.C. and weighs about 300 carats.

The only readily available Peridot simulants are colored Cubic Zirconia and colored glass or crystal, but occasionally corundum (Sapphire, Ruby) or Spinel are synthesized as Peridot simulants. Peridot itself is not generally synthesized as it is not expensive enough to be of much benefit. There are also no known treatments used for enhancing Peridot. Peridot is a special gemstone like Rubellite, where its color does not change hue dependent on the color temperature of the light source.

Peridot is commercially and traditionally known as the birthstone of August. Peridot is associated with love, truth, faithfulness and loyalty. It can also be associated by its green color with Mother Nature, life, growth and renewal.P8620

Peridot is mentioned in many ancient references as “chrysolite”. It is mentioned throughout the Bible, and early Christians considered it sacred. Today still, Catholic Bishops traditionally wear a ring of peridot and amethyst as a symbol of purity and morality.

Morganite, A Beryl By Any Other Name

P8606 Morganite is a beautiful transparent pinkish peachy orange gemstone in the Beryl family. Its siblings include Aquamarine, Emerald and Heliodor. Morganite is also known as “pink Beryl,” “rose Beryl” or “pink Emerald.” Beryl is made up of the elements Beryllium(Be), Aluminum(Al), Silicon(Si) and Oxygen(O).The peachy pink color comes from trace amounts of Manganese(Mn) in the mineral makeup. Morganite’s color can range from a quite orange peach to pink, and even to a purplish pink. Like other Beryls, Morganite is very hard at 7.5 to 8 on mohs scale.

Morganite was first discovered in both Madagascar and California about the same time in the early 1900’s and was originally called “pink Beryl.” In 1911 the New York Academy of Sciences granted it its own gem status and renamed the pink Beryl “Morganite” after the well known banker and gem collector John Pierpont Morgan (J.P. Morgan).

Morganite is fairly rare, but is generally not in high demand so the prices tend to be reasonable compared to Emerald. In the recent years Morganite has been growing in popularity and is beginning to draw more attention. Unlike its green beryl relative, Emerald, Morganite is naturally pale and very clear with no inclusions much like its other relative Aquamarine. Emerald is the opposite; it almost always has noticeable inclusions and is very deep in color.

One of the largest cut faceted Morganite gems came from Madagascar and weighs 598 carats. One of the largest Morganite crystal roughs came from a quarry in Buckfield, Maine and is known as the “Rose of Maine.” It was about 9 inches by 12 inches and weighed about 50 pounds including its matrix base.

Morganite is usually heat treated to remove unwanted yellow or orange bands of color and is quite stable. The more pink hues tend to be the most desirable in jewelry. Gem collectors of untreated stones will generally prefer the unheated peach-salmon color. The extremely rare magenta Morganite is considered the most valuable. 

Peora 14k White Gold Morganite and Diamond Pendant

If you are interested in more specifics, here are a few links to additional information on Morganite and the Beryl family:
Gemdat
Mindat
Wikipedia

Rubellite, Ruby’s Cousin?

Rubellite: “Ruby” is basically in the name so the two must be related, right? Nope.

Ruby 14k White Gold Gemstone Ring PeoraRubellite is actually a Tourmaline. Tourmaline, like Sapphire (corundum), comes in a vast array of colors and even more so than Sapphire with bi-colors and multi-colors but is a completely different mineral. “Tourmaline” actually means “mixed parcel” or “a stone with mixed colors.” Tourmaline is quite hard, just below corundum at 7-7.5 on mohs scale. The trace elements involved in the crystallization process account for the various colors. Aluminium, iron, magnesium, sodium, lithium, or potassium present will affect the color outcome of the final crystal.

The majority of gem quality Tourmaline come from Brazil and several countries in Africa, but at one time California and Maine in the United States were the largest suppliers of Tourmaline. Sri Lanka and Afghanistan also produce gem quality Tourmaline. The world’s largest known cut Tourmaline of 191 carats comes from the Brazilian state of Paraiba.

Tourmaline’s large color variations allow it to mimic many much more expensive gems. In the sixteenth century, the Portuguese even mistook a Brazilian green Tourmaline for an Emerald, but was not discovered until three centuries later. Today, many Tourmaline are falsely sold as other gemstones like Rubies, Sapphires and Emeralds.

Rubellite is a special variety of the Tourmaline species Elbaite. As you may have guessed, Rubellite and Ruby share similar origins of their names meaning “red” or “reddish.” What makes a Rubellite is not only the beautiful red color but a property that few gems have. Most gems’ colors shift depending on the color temperature of the light source, but Rubellite does not; it stays the same rich red in both natural and artificial light. Most pink or red Tourmaline secondary colors shift to a brownish tone under artificial light. They come in variations of purpleish red and red and are notorious for the prevalence of natural inclusions. The manganese that produces the rich red color causes inclusions to be more visible and the more saturated the red, the more inclusions tend to be present.

Tourmaline are known as the most dichoric gems, meaning their crystal structure actually reflects two colors simultaneously. In Rubellite, this is usually red and purple, with red being the main color and purple or pink being the undertone. Of course the more red the higher the value. Because of this dichoric nature and similar color to Ruby, it can be very difficult to distinguish between the two.

Tourmaline, like other gemstones can be treated by irradiation and heat to reduce inclusion visibility, increase color saturation or change colors. Irradiation is quite common and very difficult to detect, thus the treatment generally does not affect the value of the stone. Heat treatment can also be used to enhance the stone. Tourmaline which are strongly included like Rubellite are sometimes enhanced for clarity and this treatment significantly reduces the value of the stone.

Further information on Tourmaline and Rubellite can be found at the links below:
Gemstone.org
Rocks & Co.
Wikipedia

Thursday Featured Item – July Birthstone Ruby Leaf Cut Pendant

 

 

14 cts Fancy Cut Ruby Sterling Silver Pendant SP10668

Center Stone:
Lab Created Ruby
Leaf Cut with Checkerboard Top,
20 x 11 mm,
14.00 carats,
Pigeon Blood Red Hue with Brilliant Sparkle.

Side Stones:
20 pieces Super Sparkling Machine Cut White Cubic Zirconia.

Pendant:
6.00 grams, Pure Sterling Silver with .925 stamp,

Pendant features intricate side detail, exceptional Design, Craftsmanship and Rhodium finishing.

Perfect gift for Mothers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion. Includes an 18 inch Sterling Silver Box Chain and Signature Gift Box, style SP10668