Faceting Designs - The Gemology Project
2023年12月17日 · Welcome to the Gemology Online Faceting Diagram database! All patterns on this page were written by faceters on this site. To access the diagrams, simply click on the image of the stone. To view the image up-close, click on the …
The Portugese Cut – United States Faceters Guild
The Portugese Cut is a popular and time honored design for larger stones. Due to its greater than normal depth it is best matched to stones of light to rather than dark color saturation. While the Portugese Cut has a large number of facets, it can be …
Facet Diagrams for Cutting Gemstones - FacetDiagrams.org
You can view and print these diagrams directly from your browser. These diagrams include cutting angles and index settings and often include cutting instructions and other notes. If you have and use GemCad for Windows, these designs have a link to a file in GemCad’s ASC format you can download and open directly with GemCad .
Gemstone Faceting Diagrams and Technical Cutting Information
Simple Portuguese: Online Faceting Designs & Diagrams The Portuguese cut works wonderfully for very deep gemstones with high refractive indices. Jeff Graham’s Simple Portuguese, a modification of...
Simple Portuguese: Online Faceting Designs & Diagrams
A Simple Portuguese, 10.3 cts and 14 mm x 9.2 mm deep, cut from a top Nigerian rubellite tourmaline by Jeff Graham. You can follow the step-by-step faceting process for this gem here. My redesigned Portuguese cut has one less tier on the pavilion than the original. That's why I …
Faceting Diagrams – United States Faceters Guild
Off-site Faceting Diagrams are also available at our sister site ... Modified Gulfport Cut L/W: 1.000 | RI: 1.700 | Facets: 144. NAFC 2005 L/W: 1.095 | RI: 1.720 | Facets: 98 PDF. New Crochet ... Split Main Portuguese 12 Fold L/W: 1.000 | RI: 1.830 | Facets: 133 PDF.GEM. Square Brilliant
Portuguese Cut Gemstones: Fancy Gem Cut Info - GemSelect
Portuguese cut gems feature faceting technique where the gem is cut with two rows of rhomboidal and three rows of triangular facets above and below the girdle (the girdle is the line that divides the top or crown of the stone from the bottom or pavilion). The Portuguese cut thus exhibits an extra row of facets on the crown, and this unique ...
From Rough to Polished: Portuguese Cut — shaopeng.blog
2021年6月12日 · Portuguese cut tends to have a smaller table (the top horizontal facet), encircled by rows of rhomboidal to form the crown (the upper portion of the stone), enhancing the overall brilliance of the stone. Occasionally, Portuguese cut is used for larger coloured stones.
GemologyOnline.com • View topic - Standard emerald cut diagram
2015年12月1日 · This article is about one set of angles for one approach to cutting an emerald cut and it is a design that assumes that you have no limitations on your rough. It will result in loss of weight in the finished stone when cutting precious rough like emerald or sapphire. It would be good for quartz but I think not practical for anything else.
Here's what you need to know about the Portuguese Cut: An …
2024年6月27日 · Portuguese Cut Emerald: Although emeralds are typically more challenging to cut due to their natural inclusions, the Portuguese cut can be applied to high-quality emeralds to bring out their lush green hue and add an extra layer of sparkle.