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Blonde woman wearing sculptural MLO shell, fish and coral earrings framed by a coastal wall

The Riviera Collection

Born of the sea.Made by hand.

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Handcrafted in MiamiBorn in Buenos AiresNatural materialsLimited editions
Coquillage pearl drop earring worn on model

01 · The Edit

Earrings

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Turquoise clover necklace worn on model

02 · The Edit

Necklaces

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Mother-of-pearl clover bracelet worn on model

03 · The Edit

Bracelets

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The Collection

Objects of light

Natural materials. Singular character. Finished by hand.

43 pieces

The Maison

Born in Buenos Aires.
Crafted in Miami.

Since 1999, designer and gemologist Mariana Lopez Osornio has translated shells, reefs and tropical flora into strong, modern heirlooms.

Mariana Lopez Osornio, founder and CEO of MLO Jewelry, wearing sculptural MLO earrings
Founder portraitMariana Lopez Osornio

Founder & CEO
Jewelry designer · Gemologist

1999Founded in Argentina
MiamiDesigned & finished by hand
ACAccessories Council member
Selected MLO Jewelry press, runway and collaboration archivePress & collaborationsA public life beyond the atelier.Explore the archive
Riviera formsShell × Fish
Coral shell earring worn on model
01 · Coquillage
Riviera navy fish earring worn on model
02 · Poisson
Ivory Riviera shell fish earrings
Atelier study
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Materials with a past—and a future

Nature makes the first mark.

Repurposed natural horn, mother-of-pearl, shell, precious metals and colored stones are selected for provenance, character and the subtle variations that make every piece singular.

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The Art of Wearing

From atelier to skin

Light. Scale. Movement.

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For Retail, Resort & Hospitality

A collection made for remarkable destinations.

Curated assortments and limited runs for exceptional destinations.

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01

Curated Assortments

Product stories composed around your guest, location and point of view.

02

Limited Editions

Small-run statements with the distinction independent luxury requires.

03

Atelier Support

A direct relationship from selection and imagery through replenishment.

Selected destinations

Four Seasons Palm BeachOcean Reef Club, Key LargoBaha Mar, The BahamasKamalame CaySeven Stars Resort, Turks & CaicosView stockist heritage

@MLOJEWELRY · INSTAGRAM

Postcards from the coast.

New pieces and coastal notes, shared as they happen.

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Garden edit · In motionLove clover · Riviera motionBaroque pearl wire cuffs worn in bright pool lightBaroque pearls · Pool lightMother-of-pearl Love clover bracelet worn at the shorelineLove clover · At the shoreline

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Begin a conversation.

Private clients, press and trade enquiries are welcomed.

Message @mlojewelry