Oregon Copper-Bearing Sunstone with Schiller Diamond 18K Ring

This is a fancy marquise reddish/orange Oregon Copper-bearing Sunstone with Schiller.  We designed a 4-prong solid 18K rose gold setting with three rows of diamonds on the shoulders (band) and around the gemstone.  

In a few of the photographs you will see microscopic rows of Schiller (copper), which is the most desirable feature of Oregon Sunstones (and the most valuable).  The Schiller does not affect the clarity of the gemstone. 

This Gemstone: 

Oregon Sunstone with Pure Copper Schiller 
Weight:  4.82 carats 
Size (LxWxD):  13.5 x 8.38 x 7.56 mm 
Cut:  Fancy Marquise 
Color:   Reddish Orange 
Origin:  Dust Devil Mine, Oregon 
AAA Top Gem

Setting:

18K Rose Gold
Size:  6.5 (easily sizable for free) 
Diamonds:  VS/G
Weight:  .60 tcw (approx.)

Retail:  $ 7,500.00

CGJ:  $ 2,999.00   

What exactly is a Copper-Bearing Oregon Sunstone with Schiller Effect?

This is one of the rarest and most sought-after gemstones for collectors and anyone who appreciates beautiful gemstone jewelry and it’s only mined from one small region in the United States.  There are a lot of Sunstones mined throughout the world but nothing can compare to the Oregon Sunstone with the Schiller effect.  Oregon Sunstone is a trade name for a particular type of Labradorite, which belongs to the mineral family of feldspars. Like common sunstone, it comes in various colors, including red, blue, green, yellow and most commonly, a faint straw color. Unlike the common sunstone, Oregon Sunstone is transparent, and can be cut into amazingly lively faceted gems.  Also, Oregon Copper-Bearing Sunstone is a lot harder than other Sunstones mined elsewhere.  They are comparable to Amethyst and Citrine, 7.2 on the Mohs' Scale.

An oddity of Oregon Sunstone is the enhancing presence of ‘Schiller’. In the case of Oregon Sunstone, Schiller consists of very thin, opaque, parallel sheets (flat crystals) of copper within the gemstone. These sheets are so thin that they cannot be seen from the edge. When viewed from an angle perpendicular to the Schiller plane, the Schiller acts like a polished copper mirror, reflecting the coppery color back to your eyes. Many stones appear to be perfectly transparent at first, but when they are viewed in just the right direction, a pink to red metallic shimmer flashes from within the stone.

A properly cut Oregon Sunstone with Schiller maintains brilliance from every viewing angle, but displays a fascinating color shifting effect as the copper Schiller is rotated into view. There also is a phenomena in some gemstones which makes them dichroic, meaning they show two different colors when viewed from different directions (these are most valuable).

Colored Gemstones are graded and valued by several factors:             

1. Rarity             
2. Color             
3. Clarity             
4. Size             
5. Cut

This gemstone is the top quality in every way.