Skip to content

MJSA Journal National Jeweler

Join JA
Login

Jewelers of America

Year 1

Who We Are
Professional Resources
Career Development
Advocacy
Membership
Find a Jeweler

Join JA
Login

Search for:

MJSA Apprenticeship Program

Sprue Attachment Basics

Casting, Lost Wax: Sprue Attachment Basics

Mentor: Clear Mind Jewellery

Return to Weeks 1–12 • 13–24 • 25–36 • 37–50

Advertisement

Jewelers of America stands as the leading national trade association for businesses and organizations serving the American fine jewelry marketplace.

Instagram
LinkedIn
Facebook

General Information

About JA
Contact Us
Join
Advertise

Key Tools & Resources

Advocacy
Career Development
Professional Resources

Our Brands

MJSA Journal
National Jeweler
GEM Awards
DCA

© 2026 Jewelers of America

Privacy Policy
Contact Us

Manage Consent

To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.

Functional Functional Always active

The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.

Preferences Preferences

The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.

Statistics Statistics

The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.

Marketing Marketing

The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.

Manage options
Manage services
Manage {vendor_count} vendors
Read more about these purposes

View preferences

{title}
{title}
{title}

Welcome to the new jewelers.org!

A Fresh Look. A New Website. A Stronger Membership.

We’re excited to unveil Jewelers of America’s refreshed brand and redesigned website, reflecting our growing community and continued commitment to the jewelry industry.

With JA and MJSA now united under one membership, we’re bringing together more resources, expertise and connections to support every facet of the jewelry industry.

Take a look around to see all that JA offers — members can login to access member-only content like benefits, the Knowledge Vault and Advocacy resources.

Questions? Contact us at members@jewelers.org or call/text (800) 223-0673.