Foundations

35

Fine jewelry that’s easy to wear. Foundations are reliably elegant, diligent, and unique — many are convertible and meant to be worn in multiple ways, expanding possibilities. Our contemporary curation of proprietary pieces you can add to, change out, and fine tune to your taste. All handmade right here in New York City’s diamond district.

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  • Closeup details of the custom jewelry displays within the Mociun Williamsburg Brooklyn Showroom interior, featuring autumnal colors, warm walnut finishes and furnishings from Bower Studios. Closeup details of the custom jewelry displays within the Mociun Williamsburg Brooklyn Showroom interior, featuring autumnal colors, warm walnut finishes and furnishings from Bower Studios.

    Get a closer look at what's meant to be yours.

    BOOK A ONE-ON-ONE

    Get a closer look at what's meant to be yours.

    BOOK A ONE-ON-ONE

  • CONVERTIBLE

    CONVERTIBLE

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    Gold Butter Chain Necklace worn with a Gold Oval Openable Link clipped to the Gold Grid Swivel Charm Holder styling a Bengal Curled-Up Cat Charm, Halved Avocado Charm and Fried Egg Pendant on model. Gold Butter Chain Necklace worn with a Gold Oval Openable Link clipped to the Gold Grid Swivel Charm Holder protecting an engagement ring on model.
    product_details::Styled image on model featuring the Link Bracelet, Gold Pearl Openable Link Bracelet, Link Huggie Hoop Earrings and the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Grid Swivel Charm Holder on light color background.

    Grid Swivel Charm Holder

    Grid Swivel Charm Holder

    £609.00
    £609.00 £609.00

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  • Styled image on model featuring the Gold 5mm Ripple Band, Pearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant. Styled image on model featuring the Gold 5mm Ripple Band, Pearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant.

    Designed and produced with meticulous attention to detail.

    CHARMS, PENDANTS + PINS

    Designed and produced with meticulous attention to detail.

    CHARMS, PENDANTS + PINS

  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp. Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp. Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Coiled Swivel Charm Holder on light color background.

    Coiled Swivel Charm Holder

    Coiled Swivel Charm Holder

    £685.00
    £685.00 £685.00

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  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Yellow Sapphire Gusher Charm Huggie Hoop Earrings, Link Necklace, an Accumulation Necklace paired with the Grand Duality Medallion Pendant, and a Gold Oval Openable Link added to the Gold Butter Chain Necklace that holds a Birthstone Pearl Pendant, Peach Charm, Small Round Memento Pendant, Harmony Pendant and Diamond Poise Charm. product_details::Styled image on model featuring the Gold Oval Openable Link, Gold Butter Chain Necklace, Accumulation Necklace, Yellow Sapphire Gusher Charm Huggie Hoop Earrings, July Birthstone Pearl Pendant With Ruby, Peach Charm, Small Round Pendant Without Chain Memento Pendant, Grand Duality Medallion Pendant, Harmony Pendant and Diamond Poise Charms.
    Styled image on model featuring the Yellow Sapphire Gusher Charm Huggie Hoop Earrings, Link Necklace, an Accumulation Necklace paired with the Grand Duality Medallion Pendant, and a Gold Oval Openable Link added to the Gold Butter Chain Necklace that holds a Birthstone Pearl Pendant, Peach Charm, Small Round Memento Pendant, Harmony Pendant and Diamond Poise Charm. product_details::Styled image on model featuring the Gold Oval Openable Link, Gold Butter Chain Necklace, Accumulation Necklace, Yellow Sapphire Gusher Charm Huggie Hoop Earrings, July Birthstone Pearl Pendant With Ruby, Peach Charm, Small Round Pendant Without Chain Memento Pendant, Grand Duality Medallion Pendant, Harmony Pendant and Diamond Poise Charms.
    Oval Openable Link on light color background.

    Oval Openable Link

    Oval Openable Link

    £343.00
    £343.00 £343.00

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  • Styled image on model featuring the Gold 5mm Ripple Band, Pearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant. Styled image on model featuring the Gold 5mm Ripple Band, Pearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant.

    Designed and produced with meticulous attention to detail.

    CHARMS, PENDANTS + PINS

    Designed and produced with meticulous attention to detail.

    CHARMS, PENDANTS + PINS

  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Petite Link Necklace with the Strawberry Charm, Bengal Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, as well as the Accumulation Necklace and Tricolor Butter Chain Necklace. product_details::Styled image on model featuring the Gold 5mm Ripple Band, the Tricolor Butter Chain Necklace, Accumulation Necklace, and Petite Link Necklace with the Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, and the Comsic Balance Styling Link layered with the Butter Chain Styling Link on the Styling Link Huggie Hoop Earrings.
    Styled image on model featuring the Petite Link Necklace with the Strawberry Charm, Bengal Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, as well as the Accumulation Necklace and Tricolor Butter Chain Necklace. product_details::Styled image on model featuring the Gold 5mm Ripple Band, the Tricolor Butter Chain Necklace, Accumulation Necklace, and Petite Link Necklace with the Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, and the Comsic Balance Styling Link layered with the Butter Chain Styling Link on the Styling Link Huggie Hoop Earrings.
    Long Oval Openable Link on light color background.

    Long Oval Openable Link

    Long Oval Openable Link

    £419.00
    £419.00 £419.00

    NEW ARRIVAL

  • Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background. Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background.

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

  • CONVERTIBLE

    CONVERTIBLE

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    product_details::Styled image on model featuring the Gold 5mm Ripple Band, the Tricolor Butter Chain Necklace, Accumulation Necklace, and Petite Link Necklace with the Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, and the Comsic Balance Styling Link layered with the Butter Chain Styling Link on the Styling Link Huggie Hoop Earrings.
    product_details::Styled image on model featuring the Gold 5mm Ripple Band, the Tricolor Butter Chain Necklace, Accumulation Necklace, and Petite Link Necklace with the Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, and the Comsic Balance Styling Link layered with the Butter Chain Styling Link on the Styling Link Huggie Hoop Earrings.
    Animated detail view of the detachable Mociun Oval Openable Link closure on the Petite Link Bracelet and Blue Sapphire Gusher Charm on light color background.

    Petite Link Bracelet

    Petite Link Bracelet

    £2,890.00
    £2,890.00 £2,890.00

    MORE OPTIONS AVAILABLE

  • Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background. Styled long exposure image featuring the the Ula Pearl Necklaces on dark color background.

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

    Instant gratification, endless possibility.

    A GIFT CARD IS BOTH

  • CONVERTIBLE

    CONVERTIBLE

    Play Video

    Styled image on model featuring the Petite Link Necklace with the Strawberry Charm, Bengal Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, as well as the Accumulation Necklace and Tricolor Butter Chain Necklace. Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace.
    Styled image on model featuring the Petite Link Necklace with the Strawberry Charm, Bengal Curled-Up Cat Charm and Gold Large Thousand & One Night Heart Charm worn on its Oval Openable Link clasp, as well as the Accumulation Necklace and Tricolor Butter Chain Necklace. Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace.
    Petite Link Necklace on light color background.

    Petite Link Necklace

    Petite Link Necklace

    £4,564.00
    £4,564.00 £4,564.00

    NEW ARRIVAL

  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. Styled image on model featuring the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Link Necklace on light color background.

    Link Necklace

    Link Necklace

    £9,507.00
    £9,507.00 £9,507.00

    NEW ARRIVAL

  • CONVERTIBLE

    CONVERTIBLE

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    Link Bracelet on male model. Styled image on model featuring the Accumulation Bracelet, Infinity Openable Link Bracelet, Link Bracelet and Tricolor Butter Chain Bracelet on wrist, as well as the Butter Chain Styling Link and Cosmic Balance Styling Link on a Styling Huggie Hoop Earring Single.
    Styled image on model featuring the Accumulation Bracelet, Infinity Openable Link Bracelet, Link Bracelet and Tricolor Butter Chain Bracelet on wrist, as well as the Butter Chain Styling Link and Cosmic Balance Styling Link on a Styling Huggie Hoop Earring Single. product_details::Styled image on model featuring the Petite Link Bracelet, Link Bracelet, Accumulation Necklace, Tricolor Butter Chain Necklace, Link Necklace and mixed Styling Links.
    Link Bracelet on light color background.

    Link Bracelet

    Link Bracelet

    £4,564.00
    £4,564.00 £4,564.00

    MORE OPTIONS AVAILABLE

  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Grand Duality Medallion Pendant, Gold Butter Chain Necklace, Gold Infinity Openable Link, Infinity Openable Link Bracelet, Link Bracelet, Gold Pearl Openable Link Bracelet, Accumulation Bracelet and Tricolor Butter Chain Bracelet. product_details::Styled image on model featuring the Grand Duality Medallion Pendant, Gold Butter Chain Necklace, Gold Infinity Openable Link, Infinity Openable Link Bracelet, Link Bracelet, Gold Pearl Openable Link Bracelet, Accumulation Bracelet and Tricolor Butter Chain Bracelet.
    Styled image on model featuring the Grand Duality Medallion Pendant, Gold Butter Chain Necklace, Gold Infinity Openable Link, Infinity Openable Link Bracelet, Link Bracelet, Gold Pearl Openable Link Bracelet, Accumulation Bracelet and Tricolor Butter Chain Bracelet. product_details::Styled image on model featuring the Grand Duality Medallion Pendant, Gold Butter Chain Necklace, Gold Infinity Openable Link, Infinity Openable Link Bracelet, Link Bracelet, Gold Pearl Openable Link Bracelet, Accumulation Bracelet and Tricolor Butter Chain Bracelet.
    Infinity Openable Link Bracelet on light color background.

    Infinity Openable Link Bracelet

    Infinity Openable Link Bracelet

    £3,803.00
    £3,803.00 £3,803.00

    NEW ARRIVAL

  • CONVERTIBLE

    CONVERTIBLE

    Play Video

    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Infinity Openable Link Necklace on light color background.

    Infinity Openable Link Necklace

    Infinity Openable Link Necklace

    £7,606.00
    £7,606.00 £7,606.00

    NEW ARRIVAL

  • CONVERTIBLE

    CONVERTIBLE

    Play Video

    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Styled image on model featuring the Infinity Openable Link Necklace, Link Necklace with its Coiled Swivel Charm Holder clasp centered, and a Petite Link Necklace. product_details::Styled image on model featuring the Blue Sapphire Gusher Charm Huggie Hoop Earrings, a Double Drop Ring the Gold 5mm Ripple Band on hand, a Link Bracelet and Gold Pearl Openable Link Bracelet on wrist and the Infinity Openable Link Necklace, Link Necklace and Petite Link Necklace layered on neck.
    Animated detail view of the double sided Infinity Openable Link included as closure with the namesake necklace on light color background.

    Infinity Openable Link

    Infinity Openable Link

    £495.00
    £495.00 £495.00

    NEW ARRIVAL

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    Styling Huggie Hoop Earrings and Heart Charm styled with Huggie Gold Snack Hoop Earrings on model. Styled image on model featuring Styling Huggie Hoop Earrings with Styling Link and Link Necklace.
    Styled image on model featuring Styling Huggie Hoop Earrings with Styling Link and Link Necklace. product_details::Styled image on model featuring the Link Bracelet, Gold Pearl Openable Link Bracelet, Link Huggie Hoop Earrings and the Sapphire Gusher Openable Pendant connected to a closed-loop oval link of the Link Necklace worn as a lariat, and a Bruised Banana Peel Charm and Red Apple Core Charm suspended from its Gold Coiled Swivel Charm Holder clasp.
    Closeup details of the Styling Huggie Hoop Earrings on light color background.

    Styling Huggie Hoop Earrings

    Styling Huggie Hoop Earrings

    £913.00
    £913.00 £913.00

    NEW ARRIVAL

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    Two Thousand & One Night Heart Charm, Huggie Gold Diamond Snack Hoop Earrings and Styling Huggie Hoop Earring Single on model. Styled image on model featuring the Infinity Styling Link on the Styling Huggie Hoop Earring Single and Link Necklace.
    Styled image on model featuring the Infinity Styling Link on the Styling Huggie Hoop Earring Single and Link Necklace. Styled image on model featuring Styling Huggie Hoop Earring Single with Styling Link and Link Necklace.
    Styling Huggie Hoop Earring Single on light color background.

    Styling Huggie Hoop Earring Single

    Styling Huggie Hoop Earring Single

    £457.00
    £457.00 £457.00

    NEW ARRIVAL

  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring Link Huggie Hoop Earrings and Link Necklace. Solid Link Huggie Hoop Earrings on model.
    Styled image on model featuring Link Huggie Hoop Earrings and Link Necklace. product_details::Styled image featuring the Link Bracelet, Gold Pearl Openable Link Bracelet, Link Necklace, Gold Coiled Swivel Charm Holder, Sapphire Gusher Openable Pendant, Bruised Banana Peel Charm, Red Apple Core Charm, Link Huggie Hoop Earrings, Styling Huggie Hoop Earring Single and Styling Huggie Hoop Earringses on model.
    Link Huggie Hoop Earrings on light color background.

    Link Huggie Hoop Earrings

    Link Huggie Hoop Earrings

    £1,902.00
    £1,902.00 £1,902.00

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  • CONVERTIBLE

    CONVERTIBLE

    Huggie Gold Pavé Snack Hoop Earrings and Pavé Link Huggie Hoop Earrings on model. product_details::Styled image on model featuring the Petite Link Bracelet, Link Bracelet, Accumulation Necklace, Tricolor Butter Chain Necklace, Link Necklace and mixed Styling Links.
    product_details::Styled image on model featuring the Petite Link Bracelet, Link Bracelet, Accumulation Necklace, Tricolor Butter Chain Necklace, Link Necklace and mixed Styling Links.
    Pavé Link Huggie Hoop Earrings on light color background.

    Pavé Link Huggie Hoop Earrings

    Pavé Link Huggie Hoop Earrings

    £3,803.00
    £3,803.00 £3,803.00

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  • CONVERTIBLE

    CONVERTIBLE

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    Styled image on model featuring the Pearl Link Huggie Hoop Earrings. product_details::Styled image on model featuring thePearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant.
    Styled image on model featuring the Pearl Link Huggie Hoop Earrings. product_details::Styled image on model featuring thePearl Link Huggie Hoop Earrings, the Frank Fish Brooch pinned on the collar above the Sapphire Gusher Openable Pendant on Link Necklace, and on clasp of the Gold Pearl Openable Link Necklace is a Demi Baguette Charm, Stick of Salted Butter Charm and Fried Egg Pendant.
    Pearl Link Huggie Hoop Earrings on light color background.

    Pearl Link Huggie Hoop Earrings

    Pearl Link Huggie Hoop Earrings

    £2,282.00
    £2,282.00 £2,282.00

    NEW ARRIVAL