The Only Choice for Serious Businesses
We are an American company (American Gemstone Authority, LLC) with our manufacturing carried out at our 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 Shifting Their Manufacturing to American Gemstone
We offer complete jewelry manufacturing solutions for businesses looking for a faster and more cost effective way to go about making their fine jewelry productions.
We are an American company with fully owned manufacturing in Bangkok, Thailand. We do all of our work in house, from casting through plating, allowing for strict QC procedures at every stage of the manufacturing process.
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We are a full service jewelry factory. We provide complete custom jewelry manufacturing services from jewelry design right through to large scale productions and can accommodate anything in-between.
Manufacturing Jewelry With Us
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 manufacturer 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
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
Frequently Asked Questions
Grade AAA – Consistent Brighter colors. Diamond cut. Loupe clean up to VS quality.
Grade AA – Consistent Lighter colors. Diamond cut. Eye clean up to SI-2 quality.
Grade A – Inconsistent mixed colors. Minor inclusions up to I-1 quality.
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.
E-Coating is typically applied on top of flash plantings to improve durability. Since we only offer durable plating solutions that in and of themselves will have years of wear time, we do not offer E-Coating. We advise our clients to stick to real vermeil plating solutions as e-coating can lead to all sorts of post production problems. Electrophoretic coatings are considerably thicker than other plantings which lead to chain, clasp, and surface consistency issues. When e-coatings do wear, they tend to go in an unattractive manner, making your piece of jewelry look plastic and fake. On top of that, they are reactive to a wide array of solvents and jewelry cleaners which can lead to product returns form your clients down the road.
We have a state of the art plating set up and not only offer a wide range of plating options, but also offer a 2 year guaranty on our plating. As such, all of our gold plating is thick micron vermeil gold plating. All of our plantings are nickel free and REACH compliant.
We also offer silver Oxidization (Antiquing) as a finishing. Please note that Oxidization cannot be used on a piece together with any other plating option. This is because oxidization is not actually plating, it is a chemical reaction with the metal. Oxidization should also only be done in groves and recessed areas, and generally not on raised areas or areas that come in contact with the skin. This is because unlike plating, oxidization can easily be polished off by friction and is not a durable finishing method if applied to raised areas.
All quotations are generated online. You have to create an account and submit your product to receive a quotation from us. When you create a product in your user account, you will see a breakdown of all the components and prices charged for them attached to the product along with labor. We try to make pricing as transparent as possible.
As a fine jewelry manufacturer we work in silver, gold, and platinum, and do not accept work in non-precious metals.
Unless you predict very high order volumes, than generally no. It would be very difficult for us to maintain separate raw material stocks as we would have to stock casting trees in each alloy adequate to meet projected order volumes. We would also have to increase our recycling frequency which would in turn increase our waste.
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.
We will never knowingly violate trademark or copyright law. You, the client, must certify to us that you are the owner of any intellectual property that you have us manufacture. That said, legally you are allowed to draw inspiration from other designers or replicate designs that are public domain. In short, you are allowed to draw inspiration from other works to create your own; this is normal, and part of the artistic process, but you are not allowed to exactly copy other copyrighted works, or to ask us to put a trademark or manufacturers mark that you do not own onto your jewelry.
Copyright law, especially when applied to jewelry designs can be very complicated. If you are not sure whether you have the right to manufacture something, consult a IP lawyer before beginning. Please note that in our manufacturing agreements, you will agree to the following:
“Purchaser certifies that all intellectual property disclosed to Manufacturer in connection with this agreement is Purchaser’s original works, or that Purchaser has legal rights to reproduce said intellectual property and has authority to authorize Manufacturer to reproduce said intellectual property on Purchaser’s behalf. Purchaser assumes all legal liability for any third party claims resulting from Manufacturer’s reproduction of Purchaser’s intellectual property should they arise. In the event that Manufacturer is required to respond to a third party or law enforcement subpoena or court order that is related to Purchaser’s use of the Site or Products, Manufacturer may, in Manufacturer’s sole discretion, require Purchaser to reimburse Manufacturer for Manufacturer’s reasonable expenses associated with complying with such subpoena or order.”
All of our jewelry is 100% cadmium free and REACH compliant. We do a lot of business in the EU.