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Fibonacci Signet Ring

Description

This signet ring is perfect for those who appreciate mathematics.  A spiral representing the Fibonacci Golden Ratio is etched into the flat surface on top of the ring.  The sides have numbers and a Greek letter. 

  • Choose your metal in the dropdown below for pricing and colorizing
  • Comfort fit, with perfect sizing using our unique method
  • Proudly designed and handmade in Tucson Arizona
  • See below for inscriptions, turnaround time, and shipping
You can request a custom image for any color combination
After you place your order, you'll receive sizing rings that you can wear for a day or two to confirm your perfect size, unless this is a surprise. Ring size is important! We want your custom ring to fit just as much as you do. Here at Krikawa, we go a little over the top to get the very best size possible.

sizing ringsThis service is complimentary if you have a deposit on file and live in the US (see international, below). We even include additional advice on ring size and return packaging. All you have to do is drop it in a mailbox when you are done! Please inquire about international charges.

Machine Inscriptions (English alphabet letters and Numbers only) are FREE with shopping cart orders.  Choose from block or script. No fancy fonts. *Some styles are not engravable. Ask about inscriptions when you place your order.

For other engraving methods and engraving prices, See examples and pricing.

Turnaround Time:  Most items on our site are custom, made-to-order.
  • Made to Order*: 6-10 Weeks
  • Available Now**:  1 Week
  • Rush:  4-6 Weeks
*Turnaround time varies, depending upon our backlog, time of year, and item type.  The current estimated delivery time can be provided at any time through a simple inquiry! Almost everything shown on the site is custom, made-to-order, just for you, to spec.

** We have a very small collection of inventory items.  They are all located in our Available Now section and will ship in the next business day.

Shipping Method
  • FedEx 2 Day (Free for orders over $1000)
  • FedEx International (call or email for pricing)
When your item is completed, you will be contacted for a shipping address. Domestic U.S. orders ship via FedEx 2-day, fully insured. For international orders, we collect FedEx International transportation fees in advance, however, customs and duties are billed to you directly by your home country at delivery.

Guarantee
  • Limited Lifetime Warranty: We offer a one-year warranty against accent stone loss (up to 3mm) and a limited lifetime warranty for manufacturing defects. We offer for purchase a separate five-year extended full-service plan for added peace of mind!
  • 100% satisfaction guarantee:  We will do everything in our power to make sure you love your custom, made-to-order jewelry.  Read more about our Guarantee and Return Policies.

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You’ll be quite taken by our simple custom design process, dedication & our money-back satisfaction guarantee.

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Notes From Our Wonderful Clients

  • “Your designs are hands down, and far and away, the ones a girl could look at on her hand for the rest of her blissfully married life.”
    client photo Traci H. Springfield, MA  USA
  • “First and foremost, the engagement ring has been a smashing success. It's been a treat to see the girly side of my normally level-headed, non-girly, nursing-student girlfriend. So, thank you very much on that account. I'm very pleased. Thanks again for all of your help so far. ”
    client photo James W. Arlington, MA  USA