Aquamarine Gemstone Education

March Birthstone
Member of the Beryl Family of Minerals 
(Emeralds are also members)

Many related this is the gemstone of the sea.  Derived from Latin Water and Marina, commonly known as "of the sea." Holding the power of the sea itself.  As such it may be referred to as the "Gemstone of the sea."  Many believe that it will protect you in your voyages and help to guide ships to safe harbor. 

Commonly seen in the green, greenish, and blue, bluish areas.  Though many will relate it as being natural; many are heated to acheieve this blue color. As for deeper saturation. 

The following is an example of such stones. Heated 
Aquamarine Gemstones Heated Not Just Stones
Not Just Stones Collection
Heated Aquamarine Gemstones

Available Products and Notes 
We sell products that contain natural, synthetic (lab created) and simulated stones.  Synthetics will have near identical properties as natural counterparts, and difficult to tell apart. They are also a better choice for the environment. Simulated stones merely imitate the gemstone; commonly used for birthstones. Many times, they may be made of glass or clear quartz. Aquamarines may vary in light colors of faint green or blue to more heavier colors; and various greens. Many are unheated but also, many may be heated to enhance colors.

Most prized Aquamarine Colors 
The most prized Aquamarines are those that contain what is known as Santa Maria Blues which is a much deeper blue. They may even resemble blues that are commonly seen in London Blue Topaz. See the following example

London Blue Topaz Not Just Stones 2797
London Blue Topaz 

Color-Zoning may be deceiving
Aquamarines, as they are not common and rare, containing patches of similar colors shown above (deeper blues), sell for many times more; particularly in larger carats. This color was originally discovered at the Santa Maria de Itabira mine, in Minas Gerais, Brazil.  Keep in mind that one should also not automatically assume it is true "Santa Maria Blue." Certain stones may be the result of heating, possibly discovered by color-zoning issues. 

Color-Zoning is the result of uneven splotches of color in the stones. This is caused by imporpoper heating; as such the stone may not have received necessary saturations of color in one area as opposed to another. This is very common and many stones are relatively cheap on markets, as they contain color-zoning.  A lesser well known process of heating creates issues where it comes to Amethyst v Natural Citrines.  As shown by the following stone. This stone outlines very good examples on two fronts; color-zoning and heating to increase gemstone values. 
Not Just Stones Collection 
50415 Superior Golden Citrine -
Heated Low Grade Amethyst One I told you about

This stone was sold by the dealer as Superior Golden Citrine - it is in fact low-grade heated Amethyst. The deeper oranges that you see are indicative of this issue going on. And if not, which of coruse it is, would be an example of a stone that has color-zoning issues; whereby one area received a higher color dispersion than another.  

It should be noted that such stones command higher values. They are many times sold for more by unscrupulous vendors. Be very careful what you are buying on online auction sites; they are very common. As Madeira Citrine will generally command high prices it is common to see stones that are not actually true Madeira, though a vendor may state they are.  In many cases; they are in fact stones that have undergone a heating process to bring them to that point. Again, this is very common with Madeira colors being sold on auction sites. 

Examples of Aquamarine Gemstones 
Natural Brazilian Aquamarine Gemstone Santa Maria Blues Not Just Stones
Not Just Stones Collection 
Natural Brazilian Aquamarine Gemstone
Santa Maria Blues showing 
Untreated Unheated 

Not Just Stones Collection
50742 Brazil Aqua Oval Portuguese Cut
SI1 1.66 Cts 9.1x6.1x4.8mm
Untreated and unheated

Not Just Stones Collection 
Natural Brazilian Aquamarine Gemstone
13x5.5mm Baguette Cut 1.91 Cts. VS1
Untreated Unheated 

Not Just Stones Collection 
50739 Natural Brazilian Aquamarine
Oval Portuguese Cut
3.03 Cts 11.4x7.7x5.5mm SI1
Unheated and Untreated 

Not Just Stones Collection  Brazilian Aquamarine Parcel Unheated Untreated
Not Just Stones Collection 
Brazilian Aquamarine Parcel
Unheated Untreated 
Some showing slight Santa Maria Blues 

Aquamarines contain Dichroism 
Similar to Pleochroism, Dichroism is a unique property of this gemstone creating an illusion where the Aquamarine may seem colorless at parts of it, whiile heavily saturated in other areas. This is much like Pleochroism, which is a common trait of Iolite. As such Iolite may seem purple from one direction, near colorless from another point, and a mix of similar purple colors from still other angles.  Cutting it is important, as depending on the angle of how one is holding it or viewing it; will determine the colors that may be seen by the human eye.  Few gemstones share these properties.

The following stone is an Example of an Iolite 
Not Just Stones Collection Iolite Gemstone 50626
Not Just Stones Collection
Nartural Iolite Gemstone 
Baguette Cut 
Untreated Unheated 

It is as common for Iolites to contain heavy, multiple inclusions, as it is for oceans to contain water. This is a rare stone as Iolites are generally heavily included at larger sizes. It is a rare treat indeed to find one so clear. For this reason, many are not cut into baguette types which show off more of the inclusions.  Most will be oval or rounds. Which may create deception; and hide more inclusions.

Stones like the one above, will be snapped up by collectors. And this is no different. This stone came from such a collector around 2005; whom we had dealt with for many years prior; a GIA Gemolgoist; retiriing from the trade.