Here is
a photo of an 18 mm 17.21 ct root beer citrine....perhaps close to "Rio Grande" color.
Material is Russian lab grown quartz and is cut in Jerry's KIEV TRIANGLE
pattern which has 139 facets. Pattern is available for the asking for RI=1.54
or RI=1.60 and above. Let us know.
17.12ct
Ametrine measuring 18 x 13.5 mm. The cut is patterned after one designed
by Wilf Ross for the 2001 Australian Faceter's Guild annual competion called
"Cut Corner Rectangle". Because I had material availavble I increased the
length to width ratio to 1.33 to 1 instead of 1.25 to 1, and slightly altered
the crown step facets.
The design has a pretty typical "emerald cut" crown, however the pavilion is vastly different from an emerald cut. The pavilion has a "brilliant" array of facets rather than typical step cuts of the emerald cut design resulting in much more scattering of color and light.
Ametrine is a naturally occuring mix of both amethyst and citrine, and gem grade material comes from only one known source in Bolivia.
Peridot, 4.70 ct, from the San Carlos Apache Reservation near Globe Arizona.
The stone is a classic example of the best color peridot from the area and
is probably above average in size. The pattern started off as a Barion Cushion
designed by Dan Clayton of Seattle, but as I often do, I added a few facets
to make it more complicated and, I think, perhaps a little more interesting
A 2.89ct 8.5mm Sunstone from the Dust Devil Mine near Plush, Oregon. We picked up the rough last summer at the mine. It is a very unusual in that it has a predominant green color, but the more typical orange or salmon color is also visible. Bi-colors like this are much more rare and valuable than the salmon color.
The cut is called Hexamon 3 created by Steven De Long and was his entry in a design contest sponsored by the USFG. It was also featured in a Lapidary Journal article.
Exceptional flawless bi-color tourmaline (19.11 ct) along with a 1.34 ct princess type cut from the same crystal. Material is from the world famous 100 year old Himalaya mine in Mesa Grande, CA (San Diego County). I cut these gems for the mine owner, Chris Rose, and then had to buy them from him because they were so beautiful and rare.
Surprisingly bright and beautiful very pale 7.8
mm aqua ( almost goshenite) weighing 2.15 ct. It is picking up different
colors from the surroundings. The cut is a slight modification of a design
by Jeff Graham with 129 facets called the "TZAR cut" and has a very high
crown.
A 19.77 ct 16.5 mm Ametrine in the "Fly Eye" pattern. Robert
Strickland developed the pattern in a competion to obtain maximum tiltability
, ie. continues to return brilliance even when tipped way over. The angles
used in cutting the pavilion are unusual.
This bi-colored topaz is from the Tarryall Mountains of Colorado, near Lake George. I purchased the crystal from a miner who was selling at the Buena Vista Show in August 2005. The crystal yielded this 38 ct beauty measuring 20 x 15 mm. The champage and pale blue colors, for which this area is famous, are more pronounced than the picture suggests.
The pattern is called Formee Cross Rectangle and is by Robert Strickland. It has 75 facets.
I hope to locate the miner again this year.
Here is a 12 x 10 mm tourmaline cut corner rectangle after the Wilf Ross design which weighs 7.76 ct. and contains 61 facets. Material is from Afghanastan. The crystal displayed much dichroism with one axis very pale green and the lengthwise axis an olive green. The cut shows the color mixing created by this "brilliant" design.
Another Afghan tourmaline, this one showing the beautiful bi-color formation this versitile gem material can display. The stone is a simple step cut with a high crown stepping over the top to bring out the great color and separation of pink and green. It weighs 5.97 ct and is 10 x 8 mm
Golden Sapphire 7.5 mm 2.18 ct a native cut stone which had a "bellied" pavilion to enhance weight which was recut by Jerry to enhance beauty. It now has 9 main culet facets at the proper angle. Original weight was 2.68 ct.
The Ace of Hearts A valentine novelty cut in garnet. Designed by J. Hammer in Jan. 2007. The pavilion is a standard round brilliant but the crown is modified to reflect a heart shaped table. There are 75 facets not counting the girdle. It is 7 mm diameter and weighs 1.75 ct.
White Sapphire (lab grown) in Jerry's KIEV Triangle. Cut to order for a local jeweler. This one is 13.5 mm and weighs 11.27 cts. There are 139 facets.
This unusual cut is called Needle Brilliant and was designed by JoAnne Sisco and published Nov. 1971 in the Lapidary Journal. It produces a needle-like array of brilliance emanating from the culet. Note the stone also has a apex crown and there are 144 facets. This stone is a 13.3mm, 9.66ct "Platinum" Topaz.
Champagn Topaz in a pattern called "ETOILE" designed by Paul Rivard. Stones cut in this pattern all show excellent optics. This Topaz is 11.5mm across and has 86 facets.
Pale green/teal fine afghan tourmaline. 11.5mm 5.74ct in a cut corner rectangle...pattern designed by Wilf Ross. Photo has picked up reflective color of nearby foliage detracting from the real beauty.
Here is a 12.23ct, 15 x 12mm smokey quartz in the Cut Corner Rectangle by Wilf Ross. The raw material was obtained on a recent trip to Australia during a visit to the Billabong sapphire mine. (The quartz actually was from a different location.) A combination of this excellent design along with this particular smokey shows a prism effect with red and green flashes.
Ametrine, 16mm 15.43 ct in the Cascade Triangle pattern. This pattern was developed by Jeremy Newman after his similar design in a square configuration. The brilliant pavillion blends the colors nicely.
This "Silver Topaz" is 13mm and 14.09 ct in the Harlequin Hexagon pattern by Paul Rivard. The crystal rough was obtained from miners at Spitzkuppe Mountain by Douglas Coulter when we visited Namibia with him in October 2007 for a gem and mineral safari.
This 9mm 4.8 ct San Carlos Peridot pattern was developed for a local jeweler using a Princess-type pavillion and crown checkers on a diagonal, rather than parallel to the sides.
This 2.85 ct 9mm square cushion Aquamarine is patterned after the "Fuego Verde" design by Gustavo Castelblanco of Columbia, who developed the pattern for his emerald cutting business. It made a beautiful aqua gem as well. Of special note is the fact that the raw material rough aqua is from the USA. It was mined by Jim Tovey at the Tripp Mine in Alstead, New Hampshire in the summer of 2007.
This is a matched pair of 11 x 9 mm Tourmalines weighing 5.77 and 5.81 ct, cut from the same crystal, found at the dumps of the Himalaya Mine of San Diego County in 2006. The pattern is a modified cut corner rectangle.
This is a 16 mm, 18.65 ct synthetic Rutile in the "Vertical Split Mains" brilliant pattern with 89 facets. The raw material was made close to 60 years ago and was given to me to cut by the family of the gentleman who had the material all these years. Synthetic Rutile in the mid-1950s was a relatively new and not uncommon diamond simulant for obvious reasons.
This 9.82 ct, 13.6 mm Morganite (beryl) is one of a series of about a dozen stones that I cut from a lot of rough obtained in mid-2007. Etoile is the name of this pattern and is a favorite of mine. Paul Rivard is the designer. The cut always "performs" regardless of the material.
This striking Rio Grande colored Citrine is 11.8 ct and 15.5 mm. I designed the pattern based upon a unique and spectacular gem sphene I had seen, refining features which I thought would elevate even quartz to its greatest potential. I think the results speak for themselves. The design was featured in the April 2008 Rock and Gem magazine. I named it "Paver Trilliant" for the interlocking crown facets.
This is a 10 mm Princess cut synthetic white sapphire weighing 8.24 ct. I added several extra facets on the pavilion at the request of the jeweler customer, to give a little extra sparkle.
I named this cut Alternating Logic #2 after bring inspired by a similar pattern designed by Jeff Graham. It has a very simple pavilion but a rather complex crown with a small table resulting in a striking set of reflections in this pale golden colored citrine. The stone weighs 3.86 ct and is 10.5 mm.
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