Sapphire
Umba Sapphire and Morogoro Spinel
12/08/08 18:35 Filed in: Latest Cut
Gems
Two new stones today. The first is a Sapphire from Umba
Tanzania. This one I cut in a emerald type
shape, but not a traditional emerald cut.
What's nice about these Umba sapphires is that
they are all natural, no heat or other
treatments. They also show a color shift
depending on the lighting. This one goes from
a violet to purple depending on the light.
The next stone is a Spinel from Morogoro area in Tanzania. This one has a real nice color and a nice size. It's 3.32 cts. and measures 8.5 mm.
The next stone is a Spinel from Morogoro area in Tanzania. This one has a real nice color and a nice size. It's 3.32 cts. and measures 8.5 mm.
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Blue Sapphire and White Topaz
23/07/08 21:41 Filed in: Latest Cut
Gems
Color Change Purple Sapphire
26/06/08 21:57 Filed in: Latest Cut
Gems
The newest stone is this 1.68 ct. Color Change
Purple Sapphire. A very special
stone. First this is an all natural stone with
no treatments, not even heat. This alone is
very rare in a sapphire as about 95% of all
sapphires have been heat treated. The stone
also possesses a color change. It's hard to
photograph the color change with my lighting
set up, but the images below from Gem-e-Wizzard show the
color of the stone in various lighting. This
one would make a very interesting and unique
engagement ring stone.
The stone measures 7.5 x 5.6 mm, has excellent saturation and crystal. The origin on this gem is the Umba region of Tanzania Africa. This area is known for an abundance of fine gems including Sapphires, Garnets and Spinels.
This first image is the color of the stone in daylight and florescent lighting
This image is the color change with incandescent lighting.
The actual photo of the stone is shot with a mix of both lights with the majority of the lighting incandescent.
The stone measures 7.5 x 5.6 mm, has excellent saturation and crystal. The origin on this gem is the Umba region of Tanzania Africa. This area is known for an abundance of fine gems including Sapphires, Garnets and Spinels.
This first image is the color of the stone in daylight and florescent lighting
This image is the color change with incandescent lighting.
The actual photo of the stone is shot with a mix of both lights with the majority of the lighting incandescent.
New Sapphire and Tourmaline
01/06/08 13:41 Filed in: Latest Cut
Gems
Two new stones for today, the first is a sapphire from Madagascar
that is all natural with no heat or other
treatments. The next stone is a light green tourmaline
from Mozambique Africa cut with a checker
crown cushion shape.


Latest Cut Gems
26/05/08 18:50 Filed in: Latest Cut
Gems
Three new stones this week: A blue sapphire from Songea
Tanzania with NO HEAT or other treatements, a
Rubellite
Tourmaline from Nigeria, and a Chrome Pyrope garnet
from Tanzania.
Songea Sapphire
Rubellite Tourmaline
Chrome Pyrope Garnet
I'm thinking about cutting something green next... maybe a tsavorite or a chrome green tourmaline. Enough red stones for awhile.
Songea Sapphire
Rubellite Tourmaline
Chrome Pyrope Garnet
I'm thinking about cutting something green next... maybe a tsavorite or a chrome green tourmaline. Enough red stones for awhile.
Sapphire Recut
19/05/08 20:02 Filed in: Latest Cut
Gems
This is a picture of a recut sapphire. I didn't get
around to taking a before picture, but it was the
typical native step cut. Lopsided, poor meets and a
deep belly along with a window.
For the recut I did a concave cut to bring out some more color from a light stone.
The finished stone is 3.12 ct.
For the recut I did a concave cut to bring out some more color from a light stone.
The finished stone is 3.12 ct.