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Interesting Gem facts about Purple Sapphire.
SAPPHIRE
ALTERNATE BIRTHSTONE for APRIL (White)
THE BIRTHSTONE for SEPTEMBER (Blue)
ALTERNATE BIRTHSTONE for OCTOBER (Pink)
ALTERNATE BIRTHSTONE for NOVEMBER (Yellow)
The 5th and 45th ANNIVERSARY STONE
The 70th ANNIVERSARY JUBILEE STONE
MOH's scale of hardness : 9 |
Specific Gravity : 3.99-4.00 |
Refractive Index : 1.766-1.774 |
Double Refraction : -0.018 |
Sapphire and Ruby comprise more than half of all Gemstones sold worldwide.
Sapphire's popularity is not based on color alone. Its hardness of
9 places it next to Diamond (10), making it an excellent choice for jewelry
worn daily. It is frequently featured in engagement rings.
Most people relate Sapphire to the color Blue. But this form of Corundum
is readily available in an array of other colors: Pink, Golden, Green,
peachy Orange, Purple and Colorless. Fancy colors in Sapphires are
described as being variations of the standard hues. Color change
Sapphires are those which have two colors which are distinct when the light
source is changed from fluorescent to incandescent. Generally, the
more clear and vivid the color, the more valuable the fancy sapphire.
If the color is in the pastel range, the clarity should be good: because
in lighter tones inclusions are more noticeable, the trade usually prefers
the gemstones to be cleaner with fewer visible inclusions. In a lighter
colored gemstone, the cut is also more important: it should reflect light
back evenly across the face of the stone, making it lively and brilliant.
With darker more intense colors, the cut isn't as critical because the
color creates its own impact.
Ceylon (Sri Lanka) positively produces the finest all-round Sapphires
in the world. The very name commands a premium, and Ceylon Gems have constantly
increased in price. We have always been on top of the Gem market
in Ceylon and stay up with current prices and new discoveries. It
is a very difficult market due to political unrest. It IS dangerous to
go there, and it's more dangerous to go outside the capital city into the
countryside where the stones are hand dug from the pits. We constantly
buy fine Ceylon Sapphires when the price is "right." To be "right"
we have the connections to know who needs quick and ready cash. Every
stone is negotiated differently, thereby affecting the price per carat.
We work hard to bring these highly valued Gemstones to you at very very
affordable prices. Sapphire of lesser quality comes out of Australia,
Thailand, Colombia, Kampuchea (Cambodia), Kenya, Tanzania and Montana USA,
and we do not usually offer these stones.
TREATMENTS - almost
all (99%) Sapphire is routinely treated
with "heat" to enhance and stabilize the color. The typical heat
treatment process is a permanent process that does not adversely affect
the performance and durability of the gemstone, so there's no need to worry
when you see this enhancement disclosed. The typical heat enhancement
procedure performed on Sapphire we offer from Sri Lanka (Ceylon) normally
refers to the lower temperature wood heat method,
and the typical heat enhancement procedure performed on Sapphire
from Burma, and other countries in that region, usually refers to the higher
temperature furnace fired method that is performed
at another location, both heating methods have been accepted trade
practices for generations.
CARE - It is usually safe to clean Sapphire
in an
UltraSonic
Cleaner,
but risky to use a steamer. We recommend Ionic
Cleaners and/or warm, soapy water and a soft brush as the best way to clean Sapphire
jewelry.
We specialize in obtaining Ceylon Sapphires that are natural "untreated"
gems, not heated or chemically treated in any way. The exception
is Golden Sapphire, Orange Sapphire as well as some of the darker shades
of Blue Sapphire, and these Ceylon stones are typically heat enhanced to stabilize
the color.
Even though it does not normally
adversely affect the performance, durability, or value
of the gem, in recent years demand for unheated top quality Blue Sapphire
has caused the unheated gems to command a somewhat higher premium, depending
on the gem.
Purple Sapphire
These Sapphires are generally a strong violet to purple color. The mixed Oval and Cushion cut are the most common, but you can sometimes find square or rectangular step cuts. Purple Sapphires are rarely enhanced, and popular for mounting in jewelry, but make nice additions to any Collection.