[Jewelry making - Article 00789] - Re: [Orchid] Length of metal required for ring sizing

[JDK]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========


 Sarah,

    I happened to find these charts on the net a while back that have
    the inside crcumferences for ring sizes with international
    measurements, so size "K" is represented. Don't forget to account for
    the thickness of the metal. 

    http://www.diamondhub.com/ring.htm 

    http://www.18carat.co.uk/ringsizes.html 

    You might want to ask permission from the website owner.. He stated
    " Other jewellers are welcome to use this chart. You may ask to copy
    this chart provided you agree to attach an acknowledgment and
    copyright notice to your copy -=A9 Lawrence Chard 1999  ". 

    Since I created a folder on my computer called "Jewelry Reference", 
    I've gotten lazy about looking in books for information! 

Hope it helps.
Jesse Kaufman
CAD-CAM Technology
Handcrafted Originality
860-519-0875

[Edited - Hanuman]

Lawrence Chard's formulas:

	Diameter =3D (British Size x .4) + 11.5; where A =3D 1, B =3D 2, Z =3D 26=
, etc.
	Diameter =3D (American Size x 0.83) + 11.54
	European Size =3D Circumference - 40
	Diameter =3D (Japanese Size / 3) +12.67  

____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________