Universal Oval: Faceting Design Diagram

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

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

By Jeff R. Graham

Apatite (Yellow, Green, Neon, Blue)

Universal Oval (APAT2.JRG)
By Jeff R. Graham
Copyright 1998
86% Light Return
Angles for R.I. = 1.64
71 facets + 16 facets on girdle = 87
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.748 T/L = 0.563
P/W = 0.435 C/W = 0.177
H/W = (P+C)/W+0.02 = 0.632
P /H = 0.688 C/H = 0.280
Vol./W^3 = 0.302

Addition # 3 - This also works in Peridot, Spinel, Garnet, & Sapphire. It cuts well and is pretty standard. It has nice light return for an oval and works in most material. Cut in light to medium material, 1-24cts.

Random - Cosine - ISO

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

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/universal-ovalfaceting-design-diagram/"https://www.liveauctioneers.com/">liveauctioneers.com and <a href=https://www.gemsociety.org/article/universal-ovalfaceting-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!

Universal Oval: Faceting Design Diagram

Jeff R. Graham

Related Articles

Tang: Faceting Design Diagram

CheckMate – Reflector: Online Faceting Designs and Diagrams

Double Dart: Faceting Design Diagram

Online Faceting Designs & Diagrams: Easy Does It

Latest Articles

Classic Engagement Ring Stones