Twirl: Faceting Design Diagram

Successful tips, details and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Twirl".

Home Learning Center Jewelry and Lapidary Gemstone Faceting Diagrams and Technical Cutting InformationTwirl: Faceting Design Diagram

By Jeff R. Graham

Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Twirl (BEAD7.JRG)
By Jeff R. Graham
Copyright 2007
Angles for R.I. = 1.54
96 facets + 8 facets on girdle = 104
8-fold symmetry
96 index
L/W = 1.000
P/W = 0.968 C/W = 0.967
H/W = (P+C)/W+0.02 = 1.955
P/H = 0.495 C/H = 0.495
Vol./W^3 = 0.796

PAVILION

CROWN

Addition # 14 - This is a very nice long bead. It works well in about any material. Note that the crown and pavilion are the same. A table can be cut at C6, P6, but I usually do not bother. Just use a ball burr and concave the ends slightly so that a bead spacer will fit in and protect the ends.

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Jeff R. Graham

The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.

View All Articles

Photo by <a href=https://www.gemsociety.org/article/twirl-faceting-design-diagram/"https://commons.wikimedia.org/wiki/User:Ra%27ike">Ra’ike. Licensed under <a href=https://www.gemsociety.org/article/twirl-faceting-design-diagram/"https://creativecommons.org/licenses/by-sa/3.0/legalcode">CC By-SA 3.0</a>." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Rose Quartz Value, Price, and Jewelry Information

A popular variety of colored quartz, rose quartz makes a durable jewelry stone. Although commonly cabbed and carved, more transparent...

www.iRocks.com. Used with permission." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Ametrine Value, Price, and Jewelry Information

Ametrine is a variety of quartz that displays bands of both amethyst purple and citrine yellow. These gems are typically...

The Gem Trader</a>. Used with permission." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Broken Bangle — The Blunder-Besmirched History of Jade Nomenclature: Book Review

Is fei cui a better term for "pyroxene jade" than jadeite? Jeffery Bergman reviews Broken Bangle, a new book on...

Joel E. Arem</a>, PhD, FGA. Used with permission." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Cuprite Value, Price, and Jewelry Information

One of the rarest of all facetable gems, cut cuprites can show magnificent deep red color. However, these beautiful stones...

Photo courtesy of <a href=https://www.gemsociety.org/article/twirl-faceting-design-diagram/"https://www.liveauctioneers.com/">liveauctioneers.com and <a href=https://www.gemsociety.org/article/twirl-faceting-design-diagram/"https://www.liveauctioneers.com/auctioneer/1081/eros-auctions-inc/">Eros Auctions, Inc</a>." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Gemstone Radiation Treatment

Gemstone radiation is a common but little understood technique for altering colors. Learn how it works and what gems usually...

Tanzanian Corundum

Is This a Topazolite Garnet?

Nigerian Gemstones

Is This an Opal?

Never Stop Learning

When you join the IGS community, you get trusted diamond & gemstone information when you need it.

Become a Member

Get Gemology Insights

Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!

Twirl: Faceting Design Diagram

Jeff R. Graham

Related Articles

Rose Quartz Value, Price, and Jewelry Information

Ametrine Value, Price, and Jewelry Information

Amethyst Gem, Price, and Jewelry Information

Citrine Value, Price, and Jewelry Information

Latest Articles

Classic Engagement Ring Stones