Argentium® Sterling Silver, a registered and patented alloy developed by Peter Johns, is currently being produced by Stern Leach in the U.S. under a licensing agreement from Middlesex University, England. Argentium® Sterling Silver is a registered trade name.

This silver is highly tarnish resistant requiring minimal maintainance. An occasional wash and rinse and/or wipe with a soft cotton cloth is all that’s needed to keep the object in pristine condition (when not in use, store piece away from humidity). Argentium is made to a higher standard than traditional sterling silver and its purity is guaranteed to be .925+.

Gold Filled (also called Gold Overlay or Rolled Gold) vs. Gold Plate and Vermeil:
Gold Plate (gold which is electroplated to brass) and Gold Vermeil (gold which is electroplated to silver) uses only a microscopic amount of gold and thus has the tendency to flake over time or discolor when the metal below begins to tarnish.

We use 1/20 14K (or 14/20) Yellow Gold Fill which is made by bonding a layer of 14K Yellow Gold (the layer, by government standards, has to be 1/20th of the weight of the piece) to an alloy (usually silver or jeweler’s brass) through high heat and pressure. Because this layer of gold is usually much thicker (gold-filled is 50 to 100,000 times thicker than regular gold plating, and about 17 to 25,000 times thicker than heavy gold electroplate) than that of plated items, it does not chip or flake easily and can typically last a lifetime. As with all gold, gold filled items react with chlorine and we advise against use in pools or spas.

In an effort to minimize our impact on the environment, we use recycled metals and responsibly mined gemstones wherever possible.


All items are made to order by hand and thus may require some turn around time. We will notify you immediately of any delay. You will also be notified once the item ships, along with the corresponding tracking information. Shipping is FREE using USPS’s Priority Services. If you require expedited services, please feel free to contact us and we will quote those services separately.

Knotstudio only ships within the continental U.S.

No P.O Boxes.

If you have questions or would like assistance, please e-mail us here.

Pricing/Sales Tax

Due to market fluctuations on precious metals and gems our prices are subject to change without notice.

Knotstudio is required to charge the applicable sales tax on all purchases shipped within New York.


All payments are made through PayPal due to their reliable security. Knotstudio will redirect you to PayPal’s secure website, where you will be able to review and finalize your order. We apologize, but we cannot currently accept international credit card orders.


Because Knotstudio makes each piece to order, we cannot accept returns or exchanges. Please email us here for any further assistance.

In the case of a repair, please email us making sure to include your name, date of purchase and defect, and you will be contacted promptly to resolve the situation.

Notes for Repairs:

  • Repairs due to faulty workmanship and normal wear will be promptly repaired and returned at no expense for 90 days.
  • Knotstudio will not warrant against conditions due to normal wear and tear or accidental damage incurred by the customer after 90 days.
  • All other repairs, resizing, and alterations to jewelry will be priced on a case by case basis. Please e-mail us for an estimate.

Custom/Special Orders

If you see something you would like in another color/metal type or size, or have a special design in mind, please do not hesitate to contact us here with your requests.


For more information regarding Knotstudio’s wholesale terms, line sheets and other wholesale inquiries, please contact us at:

Showroom New York
262 W.38th Street, #506
New York, NY 10018
P: 212 842 9343
F: 212 842 9344