Thomas Janstrom

Trilliant Emerald Asscher

Posted by Thomas Janstrom on Aug 22, 2012 in Custom Faceted Gemstones, Featured Gemstones, For Sale, Gemstones | 0 comments

Trilliant Asscher design by Thomas J Janstrom Faceted by Thomas J Janstom Weight: .40 ct Gem measures: 4.30 mm This Emerald Asscher Trilliant is available from Thomas J Janstrom ...

Matched Asscher Tourmalines

Posted by Thomas Janstrom on Aug 22, 2012 in Custom Faceted Gemstones, Featured Gemstones, For Sale, Gemstones | 0 comments

Traditional Asscher Style Faceted by Thomas J Janstom Weight: 1.62 tcw Each gem measures: 4.55 mm +/- 0.01 mm across the large faces This Asscher pair is available from Thomas J Janstrom ...

Emerald Asscher

Posted by Thomas Janstrom on Aug 22, 2012 in Custom Faceted Gemstones, Featured Gemstones, For Sale, Gemstones | 0 comments

Asscher style design by Thomas J Janstrom Faceted by Thomas J Janstom Weight: .60 ct Gem measures: 4.80 mm This Emerald Asscher is available from Thomas J Janstrom Editor’s Note: Compare the coloring of this emerald to the previous trilliant asscher cut by Mr Janstrom. This square asscher gem was photographed in the shade under bright natural light outdoors. ...

Nigerian Chrome Green Tourmaline.

Posted by Thomas Janstrom on Jun 28, 2012 in Custom Faceted Gemstones, For Sale, Gemstones | 0 comments

Nigerian “chrome tourmaline”. Supposedly this stone is a chrome tourmaline, but I can’t confirm this at present. 3.45ct 8.1mm (8.9mm corner to corner) Clarity: slightly included Cut: Asscher. Faceting: Thomas J. Janstrom Photo: Thomas J. Janstrom No treatments. AU$800.00

The Big Californian Tourmaline Project.

Posted by Thomas Janstrom on Jun 23, 2012 in Custom Faceted Gemstones, For Sale, Gemstones | 0 comments

Rough was mined in the 1950’s and donated to the University of Arizona Mineral collection. Purchased by me from David Luloff in late 2011. The rough weighed 279.5ct and after trimming 193.05ct. Cut stone weight: 112cts (exact weight yet to be determined as my good scales only go to 50cts) Size: 41.4 x 19.3 x 15.3mm Clarity: included Design: Modified Smith Bar Designer: Jeff Graham Faceter:...

Pink flash Ametrine

Posted by Thomas Janstrom on Apr 27, 2012 in Custom Faceted Gemstones, For Sale, Gemstones | 3 comments

Bolivian Ametrine. Clarity: Loop Clean Design: Round Flash (A Walt Heitland inspired Design) ...

Ametrine ice drop

Posted by Thomas Janstrom on Jan 18, 2012 in Custom Faceted Gemstones, Gemstones, Not for Sale | 1 comment

Clarity: eye clean

Aquamarine.

Posted by Thomas Janstrom on Jan 6, 2012 in Custom Faceted Gemstones, Gemstones, Not for Sale | 1 comment

Pakistani Aquamarine. 4.38ct 11.75mm x 11.75mm Clarity: eye clean: There is a loop visible veil at the girdle near on of the points. Treatments: NONE. ...

Nigerian Purple Tourmaline

Posted by Thomas Janstrom on Dec 31, 2011 in Custom Faceted Gemstones, For Sale, Gemstones | 1 comment

2.22ct 10.3mm x 7.4mm Clarity: included Treatments: NONE The body colour of this stone is a true Amethyst purple, there are secondary blue highlights. ...