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Our San Francisco store is temporarily closed while we renovate our new space next door. We plan to re-open Friday, May 23rd.

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Rainbow Sapphire Tennis Bracelet
Rainbow Sapphire Tennis Bracelet Sale price$7,800.00
Rainbow Sapphire Hex Bezel Bracelet
Rainbow Sapphire Hex Bezel Bracelet Sale price$14,500.00
Rainbow Sapphire 2MM Eternity Ring
Rainbow Sapphire 2MM Eternity Ring Sale price$1,870.00
Rainbow Sapphire Baguette Eternity Ring
Rainbow Sapphire Baguette Eternity Ring Sale price$3,300.00
Rainbow Sapphire Round Millegrain Bezel Eternity Ring
Rainbow Sapphire Round Millegrain Bezel Eternity Ring Sale price$3,100.00
Purple Sapphire Yumdrop Ring
Purple Sapphire Yumdrop Ring Sale price$1,450.00
Turquoise Ring 18k goldTurquoise Ring 18k gold
Turquoise Ring 18k gold Sale price$1,450.00
Victorian Moonstone RingVictorian Moonstone Ring
Victorian Moonstone Ring Sale price$975.00
Sold out18k Bezel Set no heat Ruby Cabochon Ring
18k Bezel Set no heat Ruby Cabochon Ring Sale price$3,650.00
Midcentury Fire Opal RingMidcentury Fire Opal Ring
Midcentury Fire Opal Ring Sale price$1,500.00
Vintage Carved Rock Crystal Bead Necklace
Vintage Carved Rock Crystal Bead Necklace Sale price$600.00
Mid-Century Cartier Turquoise Heptagon Pill Box
Mid-Century Cartier Turquoise Heptagon Pill Box Sale price$2,500.00
M & Co. Lab Grown 2 CT Diamond Inside Out Huggie Hoops
M & Co. Lab Grown 2 CT Diamond Inside Out Huggie Hoops Sale price$1,450.00
M & Co. Pink Sapphire Bezel Bracelet
M & Co. Pink Sapphire Bezel Bracelet Sale priceFrom $4,950.00
Metal
Blue Topaz Half-Eternity Band
Blue Topaz Half-Eternity Band Sale price$630.00
Metal
Save 27%Mish NY 18k Gold & White Coral Cuff With DiamondsMish NY 18k Gold & White Coral Cuff With Diamonds
Mish NY 18k Gold & White Coral Cuff With Diamonds Sale price$12,000.00 Regular price$16,500.00
Alternating Citrine & Diamond Half-Eternity Band RingAlternating Citrine & Diamond Half-Eternity Band Ring
Alternating Citrine & Diamond Half-Eternity Band Ring Sale price$1,200.00
Metal
Alternating Blue Topaz & Diamond Half-Eternity Band RingAlternating Blue Topaz & Diamond Half-Eternity Band Ring
Alternating Blue Topaz & Diamond Half-Eternity Band Ring Sale price$1,200.00
Metal
Alternating Alexandrite & Diamond Half-Eternity Band RingAlternating Alexandrite & Diamond Half-Eternity Band Ring
Alternating Alexandrite & Diamond Half-Eternity Band Ring Sale price$1,900.00
Metal
Alternating Amethyst & Diamond Band RingAlternating Amethyst & Diamond Band Ring
Alternating Amethyst & Diamond Band Ring Sale price$1,200.00
Metal
M & Co. White Gold Shared Prong Lab Diamond Full Eternity BandM & Co. White Gold Shared Prong Lab Diamond Full Eternity Band
M & Co. White Gold Shared Prong Lab Diamond Full Eternity Band Sale priceFrom $950.00
Metal
M & Co. White Gold Shared Prong Lab Diamond Half Eternity BandM & Co. White Gold Shared Prong Lab Diamond Half Eternity Band
M & Co. White Gold Shared Prong Lab Diamond Half Eternity Band Sale priceFrom $950.00
Metal
M & Co. Yellow Gold Pavé Lab Diamond Full Eternity BandM & Co. Yellow Gold Pavé Lab Diamond Full Eternity Band
M & Co. Yellow Gold Pavé Lab Diamond Full Eternity Band Sale priceFrom $800.00
Metal
M & Co. Yellow Gold Shared Prong Lab Diamond Half Eternity BandM & Co. Yellow Gold Shared Prong Lab Diamond Half Eternity Band
M & Co. Yellow Gold Shared Prong Lab Diamond Half Eternity Band Sale priceFrom $950.00
Metal
M & Co. White Gold Pavé Lab Diamond Full Eternity BandM & Co. White Gold Pavé Lab Diamond Full Eternity Band
M & Co. White Gold Pavé Lab Diamond Full Eternity Band Sale priceFrom $800.00
Metal
M & Co. White Gold Pavé Lab Diamond Half Eternity BandM & Co. White Gold Pavé Lab Diamond Half Eternity Band
M & Co. White Gold Pavé Lab Diamond Half Eternity Band Sale priceFrom $950.00
Metal
M & Co. Yellow Gold Pavé Lab Diamond Half Eternity BandM & Co. Yellow Gold Pavé Lab Diamond Half Eternity Band
M & Co. Yellow Gold Pavé Lab Diamond Half Eternity Band Sale priceFrom $950.00
Metal
M & Co. Sapphire Bezel BraceletM & Co. Sapphire Bezel Bracelet
M & Co. Sapphire Bezel Bracelet Sale priceFrom $4,950.00
Metal
M & Co. East-West Oval Diamond Engagement RingM & Co. East-West Oval Diamond Engagement Ring
M & Co. East-West Oval Diamond Engagement Ring Sale price$2,750.00
Metal
M & Co. Pear Lab Grown Diamond Tennis BraceletM & Co. Pear Lab Grown Diamond Tennis Bracelet
M & Co. Pear Lab Grown Diamond Tennis Bracelet Sale priceFrom $3,950.00
Metal
M & Co. Drop Station NecklaceM & Co. Drop Station Necklace
M & Co. Drop Station Necklace Sale price$3,450.00
Color
M & Co. Multishape Prong Tennis Necklacemixed cut necklace with 15 cttw tennis necklace
M & Co. Multishape Prong Tennis Necklace Sale price$12,750.00
Color
M & Co. Emerald Cut Bezel Drop Earrings
M & Co. Emerald Cut Bezel Drop Earrings Sale price$1,975.00
Metal
M & Co. Emerald Cut Hoop EarringsM & Co. Emerald Cut Hoop Earrings
M & Co. Emerald Cut Hoop Earrings Sale price$1,975.00
Metal
The Preeti Dormeuse Drop EarringsThe Preeti Dormeuse Drop Earrings
The Preeti Dormeuse Drop Earrings Sale priceFrom $2,750.00
Sold outM & Co. 1-1.5 CT Bezel Lab Diamond Pendant NecklaceM & Co. 1-1.5 CT Bezel Lab Diamond Pendant Necklace
M & Co. 1-1.5 CT Bezel Lab Diamond Pendant Necklace Sale price$850.00
Save 29%Mid Century Chrysoprase Bracelet
Mid Century Chrysoprase Bracelet Sale price$850.00 Regular price$1,200.00
Mid-Century Yellow Gold Jade Link BraceletMid-Century Yellow Gold Jade Link Bracelet
Mid-Century Yellow Gold Jade Link Bracelet Sale price$4,850.00
Save 55%Edwardian Style Emerald & Diamond Cocktail RingEdwardian Style Emerald & Diamond Cocktail Ring
Edwardian Style Emerald & Diamond Cocktail Ring Sale price$12,000.00 Regular price$26,500.00
Marcus & Co. Edwardian Black Opal & Diamond NecklaceMarcus & Co. Edwardian Black Opal & Diamond Necklace
Marcus & Co. Edwardian Black Opal & Diamond Necklace Sale price$34,000.00
M & Co. Lab Grown Diamond Round & Pear Drop EarringsM & Co. Lab Grown Diamond Round & Pear Drop Earrings
M & Co. Lab Grown Diamond Round & Pear Drop Earrings Sale priceFrom $1,200.00
M & Co. Lab Grown Diamond Huggie Hoops
M & Co. Lab Grown Diamond Huggie Hoops Sale priceFrom $600.00
Save 20%Hand-Carved Moonstone Moon CharmHand-Carved Moonstone Moon Charm
Hand-Carved Moonstone Moon Charm Sale price$600.00 Regular price$750.00
Color
M & Co. Lab Grown Diamond Heart & Pear Drop EarringsM & Co. Lab Grown Diamond Heart & Pear Drop Earrings
M & Co. Lab Grown Diamond Heart & Pear Drop Earrings Sale price$1,500.00
M & Co. Lab Grown Diamond Paper Clip EarringsM & Co. Lab Grown Diamond Paper Clip Earrings
M & Co. Lab Grown Diamond Paper Clip Earrings Sale price$530.00
M & Co. Oval Lab Grown Diamond Engagement Ring with Half Moon AccentsM & Co. Oval Lab Grown Diamond Engagement Ring with Half Moon Accents
M & Co. Oval Lab Grown Diamond Engagement Ring with Half Moon Accents Sale price$3,200.00
M & Co. Emerald Cut Engagement Ring with Cadillac AccentsM & Co. Emerald Cut Engagement Ring with Cadillac Accents
M & Co. Emerald Cut Engagement Ring with Cadillac Accents Sale price$2,800.00
M & Co. Marquise Engagement Ring with Tapered BaguettesM & Co. Marquise Engagement Ring with Tapered Baguettes
M & Co. Marquise Engagement Ring with Tapered Baguettes Sale price$2,500.00