Skeletonema Diatom Ring [Ontogenie Science Jewelry] marine biology plankton
Skeletonema Diatom Ring [Ontogenie Science Jewelry] marine biology plankton
Skeletonema Diatom micrograph pavel skaloud [Ontogenie Science Jewelry]

Skeletonema Diatom Ring

Regular price122.00 €
Tax included. Shipping calculated at checkout.


This ring is based on the structure of Skeletonema species, a genus of diatoms found in all coastal waters except for the polar regions. Skeletonema diatoms are colonial, forming long filaments stabilized by exterior struts, and like all diatoms, they are photosynthetic. Ontogenie has crafted this colonial diatom into a lovely sterling silver ring.

The ring is made to order by 3D printing in wax and casting in polished brass, bronze or silver. If you require a size not listed, please contact me. I will be happy to create your size and make it available for purchase. If you don't know your ring size, it's best to have your size professionally measured with a ring sizer at your local jeweler.

The ring is 3D printed in polished solid sterling silver and is ready for gift giving with a gift box, polishing cloth, and care instructions.

All orders over 50 Euro ship FREE. Under 50 Euro shipping = 5.50 €

Jewelry Shipping

Jewelry in stock at Ontogenie will be ready for shipping within 1-3 days. Jewelry on backorder requires 3-4 weeks production time before it can be shipped.

Transit times:

  • Germany: 1-2 days
  • EU: 2-4 days
  • Europe, nonEU: 5-7 days
  • USA, Canada: 9-12 days
  • Australia, New Zealand: 10-17 days

For faster delivery, you can choose "Express Shipping" at checkout. Cost is 25.99 € for UPS 1-2 day service.

You will be notified by mail when your order ships and given a tracking number so that you can follow your shipment.

Your jewelry will be gift-wrapped in original Ontogenie packaging.

Please note that packages may be delayed for reasons beyond my control. In the unlikely event that your jewelry shipment is held by your local customs office, you are responsible for paying any customs fees and import taxes incurred.

**Orders to the United Kingdom of more than 135 GBP/158 Euro will incur import duties that must be paid by the customer at the time of receipt of the package in the UK. If you do not pay the import duties, the jewelry will be destroyed or returned, and your order will not be refunded.**

Art Prints, T-Shirt, Mug, and Tote Bag Shipping

Printing of these products requires 2-7 days fulfilment time at a printing facility as close to your location as possible. After fulfilment, your shipment should arrive in 3-10 business days.

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Customer Reviews

Based on 1 review
Kellie S.
Turned the first day

This ring was really pretty, I wore it one day and it turned blue.

I'm so sorry to hear this! I've never had a customer report a sterling silver ring turn blue. Can you please send me a photo? Certain chemicals and hand sanitizers can cause bronze to become green, but I've never had a problem with silver. I would recommend polishing it was a gentle silver polish. If that doesn't help, please contact me and I will give you a full refund. --Kimberly