Hot off the machine just for you to see



aquamarine 12mm 6.90ct check top cut by koala-t cut gems

Hot off the machine just for you to see

Hot off the machine just for you to see
Check top cut round brillant design Aquamarine gemstone faceted

cItem: aquaantoval12,0mm6.90ct
Material: Aquamarine
Color: blue green
Type: Beryl
Locality: african
Hardness: 7.0 good for almost any jewelry application
Design: by check top round
Cut By: Chris Byron
Dimensions: 12.0 mm 9.7mm deep
Clarity: vvs
Weight: 6.90 carats
Price: $448.50 ($65.00 per ct)
Treatments: Unknown
Note:Custom cut gems by chris byron in this beautiful
one of check top round design Aquamarine gemstone faceted


New Faceting machines


Koala-t cut gems is proudly offering new Ultra Tec Faceting machines for sale. Chris Byron Of Koala-t cut gems is now the new representative offering sales in Tucson Az. Please Make an appointment to see what we have to offer you.

Thank you

Chris Byron

Ultra Tec Lapidary Product Line

Classic Faceting Equipment

Ultra Tec V5 Classic Faceting Machine

Ultra Tec V2 Classic Faceting Machine

Concave & Fantasy Faceting Equipment

Ultra Tec Concave Faceting Machine

Ultra Tec Fantasy Machine


Faceting Accessories

Concave & Fantasy Accessories

This is what I call starting out the week right.

new start to the week

diamond cut top square
brillant design Aquamarine gemstone faceted

This is what I call starting out the week right one custom cut Aquamarine antique square Item: aquacktpsq8.10mm3.60ct Material:Aquamarine Color: blue green Type:Beryl Locality: Tanzaian Hardness: 7.0 good for almost any jewelry application…

Design: by diamond cut top square Cut By: Chris Byron Dimensions: 8.10mm x 8.05mm x 7.19mm deep Clarity: IF Weight: 3.60 carats Price: $432.00 ($120.00 per ct) Treatments: Unknown Note:Custom cut gems by chris byron in this beautiful one of diamond cut top square   brillant design Aquamarine gemstone faceted

Cut of the month up date 09/03/12

Martian Trinity Trebute cut citrine for Jeff Graham cut by chris Byron of koala-t cut gems

Martian Trinity Trebute cut citrine for Jeff Graham cut by chris Byron of koala-t cuit gems

Martian Trinity Trebute cut citrine for Jeff Graham cut by chris Byron of koala-t cuit gems

This Gemstone Design was created by Jeff R Graham and I wanted to give my friend a tribute to his work and I cut this Uruguayan Extra Color citrine 20.50 cts 22.12mm x 17.53mm x 12.34mm deep

Offering Of Rough Gem Material


Gems have intrigued humans for at least 10,000 years. The first known used for making jewelry, include crystals. These stones were reserveds for the wealthy, and served as status symbols. Rulers sealed documents with there jewel-encrusted seals. Such treasures can now be admired at many museums and treasure-valts. Today gems are worn not so much to demonstrate wealth, but rather jewelry is bough increasingly for pleasure, in appreciation of it’s beauty. Certainly, also today, when purchasing a gemstone, a certain love for a special stone is part of it. Formerly, when people were less scientifically knowledgeable, gems always had an aura of mystery, something almost spiritual. That’s why they were worn as amulets and talismans. Up to the present day, gemstones have sometimes been used as remedies against illnesses. They could be used in three different ways: the mere presence of a stone was sufficient to effect a cure the gem was placed on the afficited part of the body, or the stone was powdered and eaten. Presently, medical science is experiencing worldwide a revival of the ideas of the middle ages in the use of precious stones through the doctrines of the Esoterics.
Rough gem material can be found in many different countrys here is a list of the many and wide verity in countrys.
Canada has Amethyst Ammolite Garnet labredorite sodalite jade. the west indies there is coral. The U.S.A has aquamarine chaceony emerald feldspar garnet nphrite peridot quartz  ruby sapphire spodumene topaz tourmaline turquoise. In Mexico agate feldspar fre opal quaertztpaz turquoise Guatemala Jadeite. Green land nuummite. Great Britain Florite poland Amber. Spain aventurine Gagate Quartz. Finland Spectrolite Norway thulite. Colombia emerald, Venezuela Diamond Jasper peals Guyana Diamond Chille Lapis Lazuli Argentina Rhodochrosite. Brazil Agate Amazonite Chalcedon Diamond Emerald Ganet Opal precious Beryl Quartz Sodaite Spodumene Topaz Tourmaline. Ghana Diamond. Nigeria Aquamarine Sapphire pinel Tourmaline. Zaire Diamond. Angola Diamond. Zabia Chrysoberyl Emerald Malachte. Namibi Aquamarine Diamond Topaz Tourmaline. Botswana Damond. Zimbabwe Aquamarine Chrysoberyl Emerald Garnet Topaz Tourmline Verdite. South Africa Diamond Emerald Garnet PeridotPrecious Beryl Qurtz Rhodochrosite Ruby Tourmaline Verdite. Egypt Peridot. Madgascar Agate Aquamae Chrysoeryl Feldspar Garnet Pecious Beryl Quartz Spodumene Topaz Tourmaline. Mozambique Smoky Quartz Tormaline. Pakistan Aquamarine Emerald Garnet Ruby Spinel Topaz. Afghanistan Aquamarine Lapis Lzuli Ruby Spinel topaz. Iran Turquoise. Kenya Amethyst Aquamarine Garnet Ruby Sapphire Tourmaline. Tanzania Aquamarine Chrysoberyl Diamond Emerald Garnet Ruby Sapphie Tanznite Tourmaline. Russia Alexandrite Ambe Charoite Diamond Emerald Fieldspar Garnet Lapis Lazuli Malachite Nephrite Precious Beryl Quartz Rhodonite Topaz Tourmaline. Sri Lanka Amethyst Chrysoberyl Garnet Moonstone Ruby Sapphire spinel Topaz Tourmaline Zircon. India Aquamarine Chlcedony Chrysoberyl Diamond Diopside Emerald Garnet Jaspar Moonstone Perals Quartz Rhodonite Ruby Sapphire sodalite. Thailand Garnet Ruby Sapphire Zircon. Burma Amber Chrysoberyl Jadeite Moonstone Pridot Rock crystal Ruby Saphire Spinel Spodumene Topaz Tourmaline Zircon. Japan Coral Jadeite Perals Quartz Rhodonite Topaz. China Amber Amethyst Aquamarine Diamond Nephrite perals Peridot Ruby Sapphire Turquoise. Indonesia Diamond. New Zealand Nephrite. Australia Chrysoprase Coral Diamond Emerald Jasper Nephrite Opal Perals Sapphire.This is only a small sample of what is realy out there but this is a place to start. when you are looking for a stone on this web site It will be listed for you

Maderian Citrine custom cut for you by koala-t cut gems


Maderian Citrine custom cut by chris byron of koala-t cut gems

In our quest, to provide our customer with a better piece of material,

In our quest, to provide our customer with a better piece of material, periodically we come across a piece of gemstone that stands out in size color, or type. For this reason we have the created the stone of the month. Big bodacious, large and in charge. The Maderian Citrine pare shape convex and concave faceting by Chris Byron.

We are offering this beautiful Maderian Citrine pare Shape custom make in a Byron design. The size of it is big 80carats 23.05mm x 33.11mm x 21.5mm deep A huge hunk of custom citrine. Be the first and the last to buy this. It is a one of a kind work. $28.00 per ct $2240.00takes the stone


About Faceting a Gemstone


Beginning Faceting

This manual is meant to be a general guide to beginning faceting, Remember that the information in this manual is general and that there are a lot of ways (techniques) to get the same job done, In this manual I will outline the cutting methods that I use and the ones that work best for me. theadvice that I can giveyou – is to learn the basic infromation in this manual.As you get some cutting experience, you will gradually find what works best for you. Don’t be afraid to do some experimenting and try other techniques. What you find works best for you will depend on many things – your personality, machine you use, the type of stones you cut, and so on.  As you learn how to cut, you willalso find that some stones, even though they are the same type, cut differently from eash other, so what you did last time may not work. Experimentation is a good way to help solve problems you may run across.
Stone Design Basics:
There are a few terms for describing a faceted stone or a faceting design, These terms are genral and, depeneding on where you are, they might have slightly different meanings. Also, depending on how complicated  the design is, the terms may not apply to all of the design. At the right is a design

for a standered round brilliant note the names of the facets and like a wedding cake  at the tiers (layers of facets like a wedding cake at the same angle around the stone) meet each other (point to point) to form the top (crown) and bottom (pavilion) of the stone, joined by the girdle (vertical). Notice the dimensions in the side view. Most stones should be divided into roughly thirds, 35% of the total depth of the stone should be the crown with the pavilion about 60% of the stone. The table should around 50% of the total width of the stone. These figures are averages and, depending on the design, they could be quite different.   The facet names apply generally to almost all shapes (square, oval, rectabgle,) of stones, as long as they are in the same position. Meetpoints are points where two or more facets meet. most of the time in cutting a stone involves mahing facets meet, getting them to line up. On some stones (commercially cut in particular) the girdle facets are not cut. its just rounded, this saves a lot cutting time. You will also notice  that the facets usually don’t meet. I cut girdles, I think it adds to the stone finished look.
A Few Other Common Types:
A few types of cuts (facets) are very common as you can see the names are usually descriptive of the cut. I listed these basic types because you may hear them talked about, but there are hundreds of other designs (although the types of facets are pretty much the same) and I don’t have time to go into them in this text. I recommend that you do some reading to familiarize yourself with them.
Some Definitions:

“c” axis  It is easier than it sounds, the “c” axis runs perpendicular 90 to the crystal growth. it is generally the direction in the crystal that has the best color. You often must know where the “c” axis is to orient for cutting. If any (quartz has none).


A flat plane along which some crystals can be split. Basically it is a weak spot (direction) in the crystal growth. A crytal with perfect cleavage is weak and breaks (cleaves) easly with slight pressure (Topaz). These types of crystal must be oeiented so that cutting forces(and facets) are not placed on a clavage planes. Some crystals have imperfect cleavage in several directions (sapolite). So it’s important that youy know the type of materil you are cutting and it’s cleavage, if any (quartz has none)

Critical angle (C.A.)

In faceting the critical angle is the angle below which light entering a material (stone)   is no longer reflected back up through the crown of the stone. Foe example, the critical angle for quartz is about 40.5 if the pavilion of the stone is cut below this angle the light will go straight through the bottom of the stone instead of reflecting up through the crown like it should. When this happen the stone loses brilliance and sparkle, causing the stone to look dead. The refractive index (R.I.) of a material is what determines the critical angle. The higher the R.I. of the material  the lower the critical angle. for examply, the R.I. of Quartz is 1.54 the critical angle is 40.49, the R.I. of Diamound is 2.41 and the critial angle is 24.62. The higher the R.I. of a material, the more light reflection and brilliance it has (the light tends to bounce around traped inside of the stone causind dispersion). look at a Diamound next to a piece of Amethyst sometime and see the ( big ) difference.

History of Facetted Gemstones

Facetted Gemstones made their appearance in European jewelry during the late 13th and early 14th centuries. With the advent of the horizontally turning cutting-wheel in the late 1400s came the possibility of designing and repeating elaborately conceived geometric faceting schemes, thereby controlling and enhancing the light coming from within the stone.

Starting with the burgeoning Renaissance gem-cutting trade in Bruges, to Venice, Florence and eventually the whole of Europe, the management of light became the central theme in gem cutting. During the same period, Flemish painters, such as Jan Van Eyck (c. 1390-1441) also took up the obsession with light and reflection in their artwork. Using the laws of optics as a guiding force, the exterior shape and facet scheme of a cut gemstone would now be preordained by the refractive and reflective properties of the mineral itself.


Flame Mexican opal


Flame Mexican opal

Flame Mexican opal

My every lasting flame for you.

Sometimes there is a good stone that comes along and you just need to cut it and offer it to the public. Well here is just one of those kind of stone. it is the flame 21.95mm x 12.48mm x 7.93mm 9.60cts and it is made in Mexican orange opal it is stunning in color and quality of biofringances please enjoy aqnd let me know what you think Chris Byron Koala-t cut gems