Payment Terms


Ada Diamonds, Inc. accepts ACH bank transfers & wires, credit cards (Visa, Mastercard, American Express, and Discover), Bitcoin, and financing via Affirm. Ada Diamonds does not accept personal checks, even checks mailed directly from a customer's bank. For in-person sales at our Sunnyvale or San Francisco locations, or at an Ada Diamonds' trunk show, cash is also accepted. Ada Diamonds uses three different online payment systems including Stripe, Square, and Intuit.  

Some transactions may require ACH transfer or wire as the only form of payment. You may be asked to provide additional identification for fraud prevention. Ada Diamonds, Inc. reserves the right to reject a transaction for any reason, including but not limited to fraud risk, insufficient funds, or suspicious activity. 


In order to reserve a lab diamond, or begin the custom design process, a fully transferable but non-refundable deposit is required. This deposit is designed to show your seriousness towards completing a custom piece and discourage placing deposits on multiple stones at multiple retailers. Your non-refundable deposit may be fully refunded through our 30-day return policy on a finished piece of jewelry. Prior to the start of creating a bespoke piece, you will receive a cost estimate for the entire piece(s) of jewelry, which may require your signed approval.


Within 24 hours of placing a deposit on an in-stock or commissioned lab grown diamond, you may cancel your order and receive a full refund. After 24 hours, deposits are subject to the aforementioned refund policy.


Due to the heavily bespoke nature of our pieces that are fabricated and hand-set in the United States, Ada Diamonds kindly asks our clients to respect the following jewelry order minimums: 

  • Proposal Settings and collection solitaires: $3,500 USD
  • All other bespoke engagement rings: $5,000 USD
  • Made to order fashion jewelry from our collections: $1,500 USD
  • Fully custom fashion jewelry: $2,500 USD
  • Collections' wedding bands: $1,500 USD
  • Fully custom wedding band: $2,500 USD
  • Polydiamond wedding bands: $1,500 USD
  • Custom cut lab grown diamonds: $7,500 USD

Our all metal wedding bands, Ready to Ship items, and loose diamond purchases carry no order minimum.


A larger deposit, up to the full cost of the stone, is required to begin the Lavoisier Process or any commissioning of a diamond. Deposits on Lavoisier or commissioned lab grown diamonds are non-refundable.

Commissioned and custom cut diamonds are cut to client specifications. However, due to the nature of cutting gemstones from rough diamonds, Ada Diamonds reserves the right to adjust measurements and total carat weight within an industry-accepted variance yield of 10%. Commissioned stones may also be within 2-3 color and clarity gradings, which will be confirmed in writing prior to client payment. 


Shipments of loose diamonds, Ready to Ship items (including the Delicate Collection), and Strong Collection rings require full payment upon placing an order.

Prior to the shipment or delivery of a completed bespoke piece of jewelry, full payment on the remaining balance of an invoice is required. You have 30 days from production completion to pay your final invoice; however your piece of fine jewelry will not ship until the final invoice has been paid. Paid for, finished jewelry will be held at no charge in Ada's secure facility for up to 15 days before shipment. Ada's 30-day return policy commences on the day of final payment. 


All prices quoted through the Concierge process, on Ada Diamonds' web site, at the Sunnyvale or San Francisco locations, or at any trunk show are in USD unless otherwise noted. Ada Diamonds is not responsible for changes in foreign exchange rates and will only charge clients in USD. 


All purchases delivered in, picked up, or shipped to California addresses are subject to California sales tax at a rate of 8.5%. Ada Diamonds does not charge any domestic sales tax rate for purchases delivered outside of California.

Ready to begin your bespoke piece? Schedule a consultation with an Ada Diamonds Concierge today!