With every order you make from our web site, you help us plant a tree!

We decided to partner with ECOLOGI as a way for us to play a role in helping to revive and restore our planet. Through projects supporting tree planting to community restoration, each purchase you make on line from Mari Thomas sends a percentage of the sale automatically and directly to these projects.  

Ecologi are aligned with our values and are a fantastic gold standard, B - Corp organisation who are authentic and transparent – with their range of projects supported through their organisation being easily accessible. 

See how many trees you have helped us plant so far! Thank you 

For a list of all the other projects we support clink on this link and scroll down.

Support our charities

219 products

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Cofio / Remember: Long Silver Earrings - Mari Thomas Jewellery
Cofio / Remember: Long Silver Earrings
£220.00
£220.00
Brushstroke Collection: Large Silver Pendant - Mari Thomas Jewellery
Brushstroke Collection: Large Silver Pendant
£265.00
£265.00
Decorative Concepts: Rose Gold Small Earrings - Mari Thomas Jewellery
Decorative Concepts: Rose Gold Small Earrings
£85.00
£85.00
White 8mm round freshwater pearl stud earrings - Mari Thomas Jewellery
White 7-7.5mm round freshwater pearl stud earrings
£77.00
£77.00
Round 8mm Pink Pearl Pendant - Mari Thomas Jewellery
Round 8-8.5mm pink pearl pendant
£140.00
£140.00
SOLD OUT
Cube: Silver Long Arc Earrings - Mari Thomas Jewellery
Cube: Silver Long Arc Earrings
£145.00
£145.00
Carreg / Stone: Small Silver Pendant - Mari Thomas Jewellery
Carreg / Stone: Small Silver Pendant
£195.00
£195.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These textured rectangular cufflinks in frosted and polished silver are designed and handmade in Wales
Carved: Rectangular Silver Cufflinks
£175.00
£175.00
Bubbles silver bracelet
£135.00
£135.00
Memo: Silver Paperclip Earrings
£40.00
£40.00
Cube: Silver 3 Cube, Stacker Bangle - Mari Thomas Jewellery
Cube: Silver 3 Cube, Stacker Bangle
£300.00
£300.00
Cube: 1 Cube Silver Stacker Bangle - Mari Thomas Jewellery
Cube: Single Cube Silver Stacker Bangle
£235.00
£235.00
Decorative Concepts: Small Top Silver Ring - Mari Thomas Jewellery
Decorative Concepts: Small Top Silver Ring
£85.00
£85.00
Decorative Concepts: Medium Top Silver Ring - Mari Thomas Jewellery
Decorative Concepts: Medium Top Silver Ring
£95.00
£95.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These square textured stud earrings are designed and handmade in Wales
Carved: Square Silver Earrings
£135.00
£135.00
SOLD OUT
*NEW* Bubbles: Silver Curved Pendant
£155.00
£155.00
NEW
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These small textured square stud earrings are designed and handmade in Wales
*NEW* Carved: Small square silver stud earrings
£70.00
£70.00
Pink 7.5mm Freshwater Teardrop Pearl Pendant - Mari Thomas Jewellery
Pink 7.5mm freshwater teardrop pearl pendant
£93.00
£93.00
Contemporary Welsh gold and silver jewellery designed and made in Wales and inspired by the Welsh landscape. This bangle is inspired by the Welsh poem Cofio meaning remember by Waldo Williams handcrafted in solid silver with 22ct gold plating.
Cofio / Remember: Gold and Silver Bangle
£590.00
£590.00
Contemporary Welsh gold and silver jewellery designed and made in Wales and inspired by the Welsh landscape. These earrings are inspired by the Welsh poem Cofio meaning remember by Waldo Williams handcrafted in solid silver with 22ct gold plating.Jewellery
Cube: Gold and Silver Stud Earrings
£135.00
£135.00
Cofio / Remember: Black Silver Pendant - Mari Thomas Jewellery
Cofio / Remember: Black Silver Pendant
£160.00
£160.00
Decorative Concepts: Small Black Silver Earrings - Mari Thomas Jewellery
Decorative Concepts: Small Black Silver Earrings
£45.00
£45.00
White 9mm Freshwater Teardrop Pearl Pendant - Mari Thomas Jewellery
White 9mm freshwater teardrop pearl pendant
£108.00
£108.00
Glissando: Small Silver Pendant
£110.00
£110.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These textured rectangular earrings are designed and handmade in Wales
Carved: Silver Rectangle earrings
£195.00
£195.00
Brushstroke: Silver Earrings - Mari Thomas Jewellery
Brushstroke: Silver Earrings
£240.00
£240.00
NEW
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. This ring is perfect for a wedding ring both for men and women. Designed and handmade in Wales
*NEW* Carved: Narrow Silver Ring
£120.00
£120.00
SOLD OUT
Pages Collection: Silver Bracelet
£190.00
£190.00
Pages Collection - Silver Stud Earrings
£110.00
£110.00
SOLD OUT
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales especially slate and anthracite coal. This textured rectangular pendant is designed and handmade in Wales
Carved: Black Silver Rectangle Pendant
£155.00
£155.00
Decorative Concepts: Medium Black Silver Pendant - Mari Thomas Jewellery
Decorative Concepts: Medium Black Silver Pendant
£200.00
£200.00
Decorative Concepts: Rose Gold Small Pendant - Mari Thomas Jewellery
Decorative Concepts: Rose Gold Small Pendant
£175.00
£175.00
Memo: Long Silver Paperclip Earrings
£65.00
£65.00
Memo: Silver Necklace
£320.00
£320.00
Save 10%
Carreg / Stone: Gift Set
£229.50
£229.50
£255.00
Glissando: Medium Silver Pendant
£140.00
£140.00
Carreg / Stone: Silver Ring - Mari Thomas Jewellery
Carreg / Stone: Silver Ring
£90.00
£90.00
Contemporary Welsh silver jewellery. Inspired by the beautiful rugged landscape of Wales. This sculptured ring is designed and handmade in Wales
Carved: Long Silver Ring
£235.00
£235.00
£0.00
Linear: Triple Drop Silver Pendant
£300.00
£300.00
SOLD OUT
Bubbles: Silver Pin / Brooch
£70.00
£70.00
Last Chance: Atgofion / Memories Silver Charm Bracelet
£175.00
£175.00
NEW
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These small textured rectangular stud earrings are designed and handmade in Wales
*NEW* Carved: Small silver rectangle stud earrings
£85.00
£85.00
Pages Collection: Large Silver Pendant
£200.00
£200.00
Cube: Black Silver 1 Cube Bangle - Mari Thomas Jewellery
Cube: Black Silver 1 Cube Bangle
£125.00
£125.00
Cofio / Remember: Black Silver Ring - Mari Thomas Jewellery
Cofio / Remember: Black Silver Ring
£230.00
£230.00
Contemporary Welsh gold and silver jewellery designed and made in Wales and inspired by the Welsh landscape. This ring suitable for men or women is handcrafted in solid silver with 22ct gold plating
Cofio / Remember: Gold and Silver Ring
£340.00
£340.00
SOLD OUT
Cofio / Remember: Long Black Silver Earrings - Mari Thomas Jewellery
Cofio / Remember: Long Black Silver Earrings
£220.00
£220.00
Decorative Concepts: Small Pendant- Black silver - Mari Thomas Jewellery
Decorative Concepts: Small Pendant- Black silver
£95.00
£95.00
Contemporary Welsh gold and silver jewellery designed and made in Wales. Decorative Concepts: Collection - Rose Gold plated Large stud earrings
Decorative Concepts: Rose Gold Large Earrings
£120.00
£120.00
Decorative Concepts: Rose Gold Drop Earrings - Mari Thomas Jewellery
Decorative Concepts: Rose Gold Drop Earrings
£190.00
£190.00


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