I've spent more than thirty years in the world of jewellery, from my college and university days onward, and more than twenty-eight of them running my own business. In that time I've created over twenty-five collections, along with several limited editions and countless one-off and commissioned pieces.

I don't design to trends. I'd rather make jewellery with stories and meaning, pieces with a timeless beauty, made to be worn now and to become heirlooms, treasured for generations to come.

You can see all my current collections here, and if you're ever able, I'd love you to visit us in our gorgeous gallery in Llandeilo, south-west Wales, where you can see the collections in their full beauty and try pieces on to see how they feel.

Mari Thomas Collections

306 products

Decorative Concepts studs, sterling silver — covered in Mari's own handwriting — Clustdlysau Arian
Mari Thomas Jewellery Decorative Concepts: Small Silver Earrings
£49.00
£49.00
Decorative Concepts pendant, sterling silver — a mark drawn from Mari's own sketchbook — Mwclis Arian
Mari Thomas Jewellery Decorative Concepts: Small Silver Pendant
£137.00
£137.00
Bubbles small stud, sterling silver — tiny clustered circles inspired by champagne bubbles — Clustdlysau Arian
Mari Thomas Jewellery Bubbles: Small Silver Earrings
£75.00
£75.00
Gyda'n Gilydd linked pendant, sterling silver — "together" written in Mari's own hand — Mwclis Arian
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Linked Charm Pendant
£290.00
£290.00
Cofio pendant, sterling silver — Waldo Williams's words cast in metal — Mwclis Arian
Mari Thomas Jewellery Cofio / Remember: Silver Pendant
£240.00
£240.00
Bubbles pendant, sterling silver — clustered circles inspired by rising champagne bubbles, front view — Mwclis Arian
Mari Thomas Jewellery Bubbles: Silver Pendant
£185.00
£185.00
Cube stud earrings, sterling silver — covered in fragments of Mari's own handwriting — Clustdlysau Arian
Mari Thomas Jewellery Cube: Silver Stud Earrings
£110.00
£110.00
Decorative Concepts drop pendant, a considered mark in sterling silver — Mwclis Arian
Mari Thomas Jewellery Decorative Concepts: Silver Drop Pendant
£167.00
£167.00
Cube: Silver 1 cube bangle - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver 1 cube bangle
£185.00
£185.00
SOLD OUT
Decorative Concepts drop earrings, tracing the shape of a sketched line on paper — Clustdlysau Arian
Mari Thomas Jewellery Decorative Concepts: Silver Drop Earrings
£155.00
£155.00
Bubbles earrings, sterling silver — clustered circles inspired by rising champagne bubbles — Clustdlysau Arian
Mari Thomas Jewellery Bubbles: Silver Earrings
£155.00
£155.00
Sterling silver charm bracelet, hand-engraved with a Welsh word — Cariad (love) or Dathlu (celebration) — front view — Breichled Arian
Mari Thomas Jewellery Dathlu / Celebration: Silver Charm Bracelet
£195.00
£195.00
Decorative Concepts charm bracelet, a mark drawn from Mari's sketchbook — Breichled Arian
Mari Thomas Jewellery Decorative Concepts: Silver Charm Bracelet
£135.00
£135.00
Mari Thomas Jewellery Linear: Medium Silver Pendant
£155.00
£155.00
SOLD OUT
Gyda'n Gilydd single charm bracelet, sterling silver — "together" written in Mari's own hand — Breichled Arian
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Single Charm Bracelet
£195.00
£195.00
Decorative Concepts large studs, sterling silver — a bold mark drawn from paper — Clustdlysau Arian
Mari Thomas Jewellery Decorative Concepts: Large Silver Earrings
£92.00
£92.00
Cube: Silver Drop Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver Drop Pendant
£165.00
£165.00
Linear ring, sterling silver — clean lines drawn from Welsh slate — Modrwy Arian
Mari Thomas Jewellery Linear: Silver Ring
£145.00
£145.00
Arbennig silver charm pendant, sterling silver, front view
Mari Thomas Jewellery Last Chance: Silver Arbennig (Special) Charm Pendant
£195.00
£195.00
Cube: Plain Silver Bangle - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Single Plain Silver Bangle
£95.00
£95.00
Cube: Silver Single Cube Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver Single Cube Pendant
£115.00
£115.00
Mari Thomas Jewellery Carved: Rectangle Silver Pendant
£245.00
£245.00
Cofio / Remember: Silver Ring - Mari Thomas Jewellery
Mari Thomas Jewellery Cofio / Remember: Silver Ring
from £230.00
from £230.00
Linear lined women's Silver Bangle - handmade unique Jewellery from Mari Thomas
Mari Thomas Jewellery Linear: Silver Bangle
£370.00
£370.00
Brushstroke small pendant, sterling silver — a single considered stroke of paint cast in metal — Mwclis Arian
Mari Thomas Jewellery Brushstroke: Small Silver Pendant
£195.00
£195.00
Linear: Small Silver Stud Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Linear: Small Silver Stud Earrings
£80.00
£80.00
Carthenni earrings, sterling silver — the traditional Welsh blanket weave in miniature — Clustdlysau Arian
Mari Thomas Jewellery Carthenni Silhouette: Small silver square earrings
£42.00
£42.00
Decorative Concepts medium pendant, sterling silver — a bold pen stroke cast in metal — Mwclis Arian
Mari Thomas Jewellery Decorative Concepts: Medium Silver Pendant
£325.00
£325.00
Cofio bangle, sterling silver — Waldo Williams's words cast in metal — Breichled Arian
Mari Thomas Jewellery Cofio / Remember: Silver Bangle
£470.00
£470.00
Cube: Short Arc Drop Silver Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Short Arc Drop Silver Earrings
£165.00
£165.00
SOLD OUT
Gyda'n Gilydd single charm pendant, sterling silver — "together" written in Mari's own hand — Mwclis Arian
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Single Charm Pendant
£195.00
£195.00
SOLD OUT
Dathlu / Celebration: Small Silver Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Dathlu / Celebration: Small Silver Pendant
£195.00
£195.00
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Triple Drop Pendant
£360.00
£360.00
Cube: Silver 3 Cube Bangle - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver 3 Cube Bangle
£300.00
£300.00
SOLD OUT
Bubbles curved pendant, sterling silver — fluid shape inspired by rising champagne bubbles — Mwclis Arian
Mari Thomas Jewellery *NEW* Bubbles: Silver Curved Pendant
£195.00
£195.00
Cube: Silver Charm Bracelet - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver Charm Bracelet
£115.00
£115.00
Cube: Silver 3 Drop Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver 3 Drop Pendant
£280.00
£280.00
Decorative Concepts studs, 18ct rose gold plated silver — covered in Mari's own handwriting — Clustdlysau Arian ac Aur
Mari Thomas Jewellery Decorative Concepts: Rose Gold Small Earrings
£89.00
£89.00
Gyda'n Gilydd bracelet, sterling silver — "together" written in Mari's own hand — Breichled Arian
Mari Thomas Jewellery Gyda'n Gilydd: Silver Linked Charm Bracelet
£290.00
£290.00
Mari Thomas Jewellery Carved: Silver Square Pendant
£210.00
£210.00
Dathlu / Celebration: Long Silver Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Dathlu / Celebration: Long Silver Pendant
£250.00
£250.00
Mari Thomas Jewellery Carved: Sculptured Silver Ring
£295.00
£295.00
Carved sterling silver hoop earrings, nature-inspired texture
Mari Thomas Jewellery *NEW* Carved silver hoops
£135.00
£135.00
Pink 6mm round Freshwater pearl stud earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Pink 6-6.5mm round freshwater pearl stud earrings
£70.00
£70.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These small textured square stud earrings are designed and handmade in Wales
Mari Thomas Jewellery *NEW* Carved: Small square silver stud earrings
£92.00
£92.00
White 6mm round Freshwater pearl stud earrings - Mari Thomas Jewellery
Mari Thomas Jewellery White 6-6.5mm round freshwater pearl stud earrings
£70.00
£70.00
Bubbles charm bracelet, sterling silver — clustered circles inspired by rising champagne bubbles — Breichled Arian
Mari Thomas Jewellery Bubbles silver bracelet
£180.00
£180.00
SOLD OUT
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Circle Earrings
£190.00
£190.00
Mari Thomas Jewellery Carved: Silver Fractured Pendant
£225.00
£225.00
Cube: Silver Ring - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver Ring
£110.00
£110.00
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