M.S. Rau is committed to offering fine art of the highest caliber and we seek paintings and sculpture by historically renowned artists, often with impressive provenance. The large majority of our works of art come from private. . .
At M.S. Rau, we are committed to building a long-term, rewarding relationship with each and every client. That’s why your purchase is backed by our 125% guarantee.
Learn MoreColor-Change Brazilian Alexandrite Ring, 6.90 Carats
- This 6.90-carat Brazilian alexandrite possesses the remarkable ability to change color
- The gem transforms from bluish-green in daylight to reddish-purple under incandescent light
- The emerald cut stone is accompanied by reports from the AGL and the SSEF
- The alexandrite is set in platinum with 1.02 carats of diamonds
- Get complete item description here
To speak to one of our experts, call 1-888-711-8084
While the alexandrite was first discovered in the Ural Mountains of Russia in the 1800s, many of the finest examples of these stones have been found in The 17.08-carat stone known as the Whitney alexandrite can be found in the Smithsonian Museum of Natural History, having been gifted to the National Gem Collection by Carolyn Wright Whitney. Like the present stone, the Whitney alexandrite changes from bluish-green in daylight and fluorescent light to an intense purple in incandescent light. In terms of both rarity and originality, these Brazilian alexandrites outrank nearly every other gemstone known.
Download the Reports

| Period: | Contemporary |
| Origin: | Brazil |
| Type: | Rings |
| Style: | Modern |
| Stones: | Alexandrite;Diamonds |
Marvels of Nature: Gemstone Phenomena Explained
Mother Earth’s most amazing treasures Beneath the Earth's crust, a unique blend of elements, heat, and pressure gives rise to extraordinary gemstones, some of which possess awe-inspiring visual properties. These rare...
Read More
The Alexandrite Gemstone
To be classified as a gemstone, a crystal must contain three very important attributes: beauty, rarity, and durability. Upon initial examination, a gemstone’s inherent properties are identified – color, hardness, refractive index, and...
Read MoreAt M.S. Rau, we are committed to building a long-term, rewarding relationship with each and every client. That’s why your purchase is backed by our 125% guarantee.
Learn More
