Mystery Piece

(23 customer reviews)

£40 inc. Vat

Mystery Piece breastmilk and memorial jewellery images here are examples of previous mystery pieces and aren’t guaranteed! August 2023 – I  may be able to do Over The Rainbow Bridge beads for any pet memorial jewellery, please let me know if you’d like to be considered – Nikki

We will post you a sending kit after you order. Please scroll down for the full product description!


what is your request? *

Ring size, colours preferred, do you wear a Thomas Sabo or Pandora bracelet? We will try to take this into account


You can request some colours but it is not guaranteed; we need at least one photo of each colour, jewellery type and element and if we already have a photo we will not make another one for a mystery piece. If you have a request we will usually try our best to make it but it is not guaranteed. Now includes breastmilk jewellery again!

A mystery piece is a jewellery item in something that we make when we need more photographs of a new setting or variation, or a limited edition or prototype and will be valued at at least £60. If you include as many notes as possible with your order we will try to match it, for example, “my ring size is P and I love black” or “I have a Thomas Sabo necklace and like pinks and gold leaf” or “my mother in law likes classic jewellery and could have the same piece as me but with blues and greens”. It could be a new exclusive design!

We will carefully cast only your breastmilk, ashes, lock of hair or fur or umbilical cord into resin and give you a choice of stones. You can see Nikki’s YouTube tutorials here and know that I never film without your permission. I’m considered an expert and offer advanced courses in making breastmilk jewellery, so you’re in safe hands. You might see my designs and stock images elsewhere because other breastmilk artists buy them from me over on Keepsaker Supplies (you’re welcome to buy from there if you’d rather DIY!)

Mystery Piece Breastmilk and Memorial Jewellery Sending

We will post you a sending kit, if you want to send in extras let us know in the comments so we can send the right pots in your kit. Can be any combination of breastmilk, cremation ashes, locks of hair, umbilical cord or placenta and will be set in resin and solid silver. May include a forget me not or precious metal leaf. Will not include birthstones. We will try to include your preference of colour and/or setting when possible but please remember they are not guaranteed.

Mystery Memorial Jewellery Engraving

Mystery Piece orders will not be engraved, sorry.

What will I get?

Please note that there is no guarantee of what you will get but our aim is to please. As with every other piece we sell they are completely 100% custom made and non-refundable. The mystery piece breastmilk and memorial jewellery items are also not included in our goodwill remake policy, nor will you receive a proof photo. You must be willing for your piece to be featured in a video where needed or we will need to refund the order. Because they are occasionally trials of new techniques they will sometimes be more rough and handmade than our usual work (which is, honestly, rough and handmade anyway!) so please read our terms and conditions fully to understand the flaws that are possible.

If you would prefer to DIY then check out our sister website Keepsaker Supplies.

Please check out our FAQ page before ordering

Additional information


breastmilk, multiple (comments), cremation ashes, hair or fur, cord or placenta

precious metal

rolled gold (14ct gold filled metal), solid silver, yellow gold vermeil (gold plated solid sterling silver)



23 reviews for Mystery Piece

  1. Claire Smith (verified owner)

    I ordered a mystery piece as I was having an ash ring made pro bono. Nikki gave excellent customer service and the mystery piece I received is truly beautiful.

  2. Julie Cordery (verified owner)

    A brilliant idea I was a bit unsure when I placed my order but am so glad I did I love my ring , the colour is perfect and the size exact. Fantastic quality such a pretty item.

  3. unicornkimmmm (verified owner)

    i added a mystery item onto my order and had no idea what i would receive, everything on the website is so beautiful that i thought it would be worth a punt. I’m so glad i did! nikki made me a beautiful beautiful breastmilk bead necklace with an engraved washer. it’s simply stunning and i love it!

  4. Kellbell (verified owner)

    I ordered a mystery piece hoping that I would get a ring with some of my Dads hair in it. I was not disappointed at all – I received the most beautiful heart shaped ring with my dads hair in it – it is absolutely beautiful & fits perfectly. Communication was great, I changed my ring size preference & this was no trouble. I will treasure this ring forever. Thank you to Nikki & the team for making such a special piece of memorial jewellery for me. I 100% recommend Tree of Opals.

  5. Kellbell (verified owner)

    I ordered a mystery piece and sent in some of my breast milk. I was hoping for a breast milk pendant. The most beautiful orb pendant on a silver chain arrived & I could not be happier with it. Nikki included the colours of the months of my 3 children’s birth that you can see in certain lights. This is such a beautiful reminder of my breast feeding journey with 3 children & again I will treasure it forever. Thank you so much.

  6. Ebennett (verified owner)

    I am honestly so happy with my mystery jewellery, yes, the wait for it is long, but Nikki and her team don’t hide it when you order, and it was so worth the wait! My ring was to comemorate my breast feeding journey, I which I knew was coming to an end, my ring aptly arrived one week after my last feed, so was that bit more special to receive!
    The quality of the ring is outstanding, I’m quite fussy with jewellery so was detailed as to what I didn’t like when I placed my order, what I received was far better than I expected and packaged beautifully. Thank you Nikki and team, you’ve made me very happy!

  7. Marisa (verified owner)

    I ordered a mystery item, and sent some umbilical cord. My requests were matched so well, and it was exciting to take delivery of to see what had been made! I received a gorgeous ring to celebrate the birth of my daughter, utilising her birthstone and with her name and birth date engraved. The umbilical cord itself is clearly identifiable if you look for it but subtle and very much looks like a natural inclusion (like in amber), which is perfect. Communication from Nikki and the team was great, and the quality of the piece amazing! Can’t wait to choose and order another product to mark the arrival of our second baby!

    • Nikki Kamminga

      Oh thank you so much Marisa! I just want to let everyone know we aren’t able to engrave the mystery pieces any longer but we’ll always take colour, style, birthstone, awards etc into account. These pieces are perfect for us to photograph for Instagram to show off our best work
      Nikki x

  8. GMawson (verified owner)

    Wow, I was utterly speechless when I opened my mystery piece. I took a gamble as I knew what I wanted. The gamble well and truly paid off. My necklace is everything I imagined and so much more. Nikki and the team really listened to what I liked. The customer care and service I recieved was second to none. Truly amazing and the products are simply beautiful. Thank you so much. A piece of my son will be with me during the hours/days we are apart. It doesn’t get much more special than that.

  9. Criscas (verified owner)

    It goes far beyond my expectations, is absolutely beutiful, i have received a hair keepsake pendant and it even came with a beautiful silver chain. I feel so lucky they have chosen this piece for me !!! Highly recomended and very good price!!thanks

  10. Reanne1986 (verified owner)

    I ordered 3 mystery pieces alongside a hair memorial ring, my expectations were not only met but blown out of the park! The items received were a hair pearl, a charm and a necklace cabochon – all made to perfection and will be forever cherished – Nikki is an amazing person who walked me through the preparation and making and delivery! All in all an amazing experience! Cannot thank you thank you enough xxxx

  11. Emma Blake (verified owner)

    I received a beautiful peach Ash charm this morning – a memorial to my beloved cat and I can’t be happier. Service is first class and the product far exceeds my expectations. Thank you all so much xx. If you are thinking of buying do – you won’t be dissapointed 5*

  12. Emma270782 (verified owner)

    I ordered the mystery item the service was fantastic I received a beautiful ring I’m very happy with my purchase thank you

  13. Emma270782 (verified owner)

    I ordered a mystery item for my mother as a gift she was over the moon with her ring with her parent hair thank you very much your items are amazing

  14. Lisa James-Bransgrove (verified owner)

    I ordered a mystery ash piece after losing my step dad , I was really hoping for a ring, I received it today and it is a beautiful ring that I absolutely love and will wear all the time to keep him close to me. The customer service I received was excellent as well. When it turned up it was in a lovely box together with a silver polish cloth and a bracelet to wear to make a wish together with a forget me not. It made me cry but just because it was all so lovely. I wouldn’t hesitate order from them again.

  15. Pols69 (verified owner)

    I purchased a mermaid teal ring and a mystery gift to accompany it i received a gorgeous pendant and necklace which matches the ring perfectly and it all arrived unexpectedly before christmas which was amazing. Thankyou so much they are beautiful.

  16. Pols69 (verified owner)

    I bought a mystery gift and received a dangle charm its gorgeous love the sparkle elements in it, very happy with the service provided wonderful company thankyou again.

  17. GWoodman (verified owner)

    I added the mystery jewellery on after I received the proof for my ring – such a great idea to be offered this! I gladly added it on & the piece I received is beautiful! Didn’t know what to expect but I now have a necklace prefect for my wedding day! Thank you so much! ❤️

  18. VickiLorraine (verified owner)

    Had a memorial piece done and it turned out to be a ring which was a green colour with my grans ashes in… it’s beautiful and I’m so chuffed with this piece and so glad I took the chance and ordered one

  19. Emma270782 (verified owner)

    Over the moon with my item thank you so much

  20. Justyna040 (verified owner)

    I am so, so happy with my mystery item! I normally don’t like surprises but considering I couldn’t decide on what to buy, I chose a mystery piece and omg is it beautiful! Highly recommend and can’t stop starring at my new beautiful ring ♥️

  21. Joanna

    This necklace was so beautiful and everything I could have wanted! The artist had made a heart shape with my dogs fur and I was blown away by the quality and craftsmanship. I would definitely recommend, pieces are always so unique and great when artists get free reign!

  22. Gill Colman (verified owner)

    I love my breastmilk ring, it’s stunning and just what I wanted to celebrate one year of feeding my allergy baby. I found it so hard to choose what I wanted, but Nikki looked at my requests and made me something I didn’t know I wanted! And I got an amazing bonus of a charm too. Thank you so much, they will be treasured forever.

    • Nikki Kamminga

      Thank you so much for your review and I’m so glad you liked them!

  23. Samantha Stevens (verified owner)

    My mystery piece came out beautifully. I love Nikki’s work and was totally excited to see what she came up with. Her work truly blows me away. I’m so happy to have a little piece of my baby to wear with me!!!

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