The Only Choice for Serious Businesses
We are an American OEM jewelry manufacturer (American Gemstone Authority, LLC) with subsidiary jewelry factory in Bangkok, Thailand (American Gemstone LTD).
We are a lean, technology driven organization with a focus on leveraging technology to achieve ultra rapid delivery and very fine quality. Through our production capabilities, our clients are rapidly becoming lean organizations, minimizing their stock and making their deliveries ahead of schedule.
Our clients range from established, very well known, international jewelry brands, to jewelry wholesalers, to jewelers, and boutiques across North America, Europe, Asia, and Australia. We can help you take your brand into the digital age.More About Our Jewelry Factory
American Gemstone Group, one of the most dominant players in OEM branded fine jewelry manufacturing has established a new factory in the Bang Bon Industrial Zone in Bangkok, Thailand. After rapid growth from 2013 - 2015, American Gemstone strengthens it's Thailand operations with...
American Gemstone Group together with chief executives and personnel involved from all departments have prioritized the importance of social responsibility within our organization. According to environmental and safety regulations, environmental problems, organizational risks, and situational changes, chief executives see it...
American Gemstone Authority, LLC is pleased to announce the long awaited launch of it's unique manufacturing portal. The new user interface allows clients to login and receive instant quotations for the manufacture of custom jewelry items. Client's products are view-able...
Why Private Labels Worldwide are Entrusting Their Manufacturing to American Gemstone
We offer complete jewelry manufacturing solutions for brands and businesses in need of a faster and more cost effective approach to producing their jewelry collections.
We are an American company and fully own our jewelry factory in Bangkok, Thailand. We do all of our work in house, from casting through to plating, allowing for strict QC procedures at every stage of the manufacturing process.
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As full service custom jewelry manufacturers, we can begin from your rough sketch, picture, 2d design or 3d design, our CAD jewelry design team will first model your jewelry in 3D to confirm your requirements before proceeding with samples.
How It Works
Sign Up: Start by making a user account (if you do not yet have one).
Custom project submission: Once logged in; select the link that says “Submit Your Jewelry Design” under the “Quotation” menu.
Jewelry designs must be submitted to us through our jewelry manufacturing web portal. All designs submitted in this manner by our business clients are completely confidential, and will never be reproduced without your explicit permission. Through our online system we are able to streamline our communication with you through your user account.
Our expert design team are available to help guide you through the process of making your jewelry designs, by transforming your sketches, pictures, or ideas into 3 dimensional CAD files for review before you commence making your jewelry samples.Read more
Our invoices are generated in such a way as to be as transparent as possible on our pricing. This allows you to get a feel for how much projects will cost before you have even begun to create them. As we are primarily a production company all of our unit prices are geared towards production orders. First prototypes created of a style will also enjoy our regular production prices with no surcharges added outside of development fees for creation of masters, molds, and designs.
When submitting jewelry designs inside your user account, you will see pricing breakdowns of all materials used in your jewelry product. Gold and silver is priced out per gram, and gemstones are generally priced out per piece. For advanced users, our web portal allows you to select your own estimates of material usage when submitting a new jewelry design for quotation. This allows you to receive instant ballpark estimates for new jewelry creations, and further allows you to tailor your product to a specific target budget prior to submission for review.Read more
We will first manufacture a silver prototype of your jewelry design before proceeding with any productions or gold samples. For more information please visit our Jewelry Prototyping section. We require all jewelry prototypes to be paid up front in full.
Once a jewelry prototype model has been accepted you will be free to make production orders at your discretion. Goods will be delivered FOB to your carrier of choice.Read more
Before contacting us, we strongly recommend that you visit our Frequently Asked Questions page. Answers to most common queries can be found there.
When you’re ready to proceed with a quotation, simply click on the Free Quotation button above to get started making jewelry with us.
Jewelry Manufacturing Tools, Tips and Information
Question: How to prepare designs for production? The first step in developing a commercial line, like many things, is clarity of vision. It’s very important to know exactly what you want to produce and to be able to communicate this vision efficiently. To accomplish this, you will need one of four things: A master, a sample, a picture, or a sketch.
The following gold and silver prices are quoted in Troy Ounces and are pulled from the New York Mercantile Exchange, the London Bullion Market, and the Tokyo Commodity Exchange by Kitco Metals Inc.
The following table can calculate a piece of jewelry’s approximate diamond use. Simply fill out the number diamonds of each size used in the piece of jewelry and the total approximate diamond weight used in the piece.
These conversion tables can approximate the weight of a finished piece of jewelry from a piece of jewelers wax. Simply enter the weight of the wax in the box titled “Your Value”, and the table will automatically calculate
The below project estimator will give you a free jewelry appraisal of a piece’s approximate retail price. It can quickly calculate approximate retail cost of a piece of jewelry if you have a good idea of it’s components. If your logged in to your user account with our website, it can instantly give you an approximate cost to manufacture the jewelry design with us.
Jewelry Manufacturers FAQ
We only accept to stock and use client gemstones from established businesses. Unfortunately if you are a startup you will need to choose from the large selection of gemstones that we regularly stock.
If you are an established business, we are happy to receive your stock, however be aware of the following;
Synthetic Stones; We also work in CZ both white and fancy as well as crystal for colors that are not available in CZ.
As a fine jewelry manufacturer we work in silver, gold, and platinum, and do not presently accept work in non-precious metals.
18K Gold: Yellow, White, Pink
14K Gold: Yellow, White, Pink
10K Gold: Yellow, White
9K Gold: Yellow, White (Orders must be over 200 grams per color)
Silver 925 (Ultra Hard – DeOx): Our DeOx alloy tarnishes slower than Silver 925 alloyed with copper. It is a proprietary alloy, does not contain Nickel or Cadmium, and is fully REACH compliant.
Yes. We do have very specific requirements that must be followed if we’re going to be able to use your files for production. In the long run we recommend our clients to use our CAD design team where possible. Their really some of the best in the industry and we intentionally keep our fees very low with the idea that by us subsidizing design, you will be able to move into production quicker.
For more details on our design requirements please visit our CAD design page: