Login

Cart

Your cart is empty

get 10% off

Sign up for our newsletter and receive a discount on your next order.

All Sale

Lab-Grown Diamond Jewelry & Special Collections: Discounts are applied automatically at checkout—no code needed. 

Estate Jewelry: Priced as marked. 

Mystery Gift Bonus: Every order placed on September 1st, 15th, and 30th includes a surprise mystery item!

Sort by

91 products

Filters
M & Co. Basket Setting Diamond Stud EarringsM & Co. Basket Setting Diamond Stud Earrings
M & Co. Basket Setting Diamond Stud Earrings Sale priceFrom $499.00
M & Co. 3-Prong Martini Setting Diamond Stud EarringsM & Co. 3-Prong Martini Setting Diamond Stud Earrings
M & Co. 3-Prong Martini Setting Diamond Stud Earrings Sale priceFrom $550.00
Round Bezel Lab Grown Diamond BraceletRound Bezel Lab Grown Diamond Bracelet
Round Bezel Lab Grown Diamond Bracelet Sale priceFrom $1,750.00
3, 5, 8, 10, and 15 cttw bracelets
Lab Ground Diamond Classic Round Tennis Bracelet Sale priceFrom $1,895.00
M & Co. Bezel Round Diamond Stud EarringsM & Co. Bezel Round Diamond Stud Earrings
M & Co. Bezel Round Diamond Stud Earrings Sale priceFrom $620.00
M & Co. Bezel Heart Shape Diamond Stud EarringsM & Co. Bezel Heart Shape Diamond Stud Earrings
M & Co. Bezel Heart Shape Diamond Stud Earrings Sale priceFrom $550.00
M & Co. Bezel Emerald Cut Diamond Stud Earrings
M & Co. Bezel Emerald Cut Diamond Stud Earrings Sale priceFrom $550.00
M & Co. Pear-Shape Lab Diamond Pendant
M & Co. Pear-Shape Lab Diamond Pendant Sale priceFrom $1,250.00
M & Co. Lab Grown Diamond Huggie Hoops
M & Co. Lab Grown Diamond Huggie Hoops Sale priceFrom $600.00
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$595.00
M & Co. Pear Diamond Bypass RingM & Co. Pear Diamond Bypass Ring
M & Co. Pear Diamond Bypass Ring Sale price$985.00
6 ctw Asscher Bezel StudsLab Grown Diamond Asscher Cut Studs
Lab Grown Diamond Asscher Cut Studs Sale priceFrom $1,200.00
M & Co. Diamond Multi-Shape Station BraceletM & Co. Diamond Multi-Shape Station Bracelet
M & Co. Diamond Multi-Shape Station Bracelet Sale price$650.00
M & Co. Pear & Emerald Toi et Moi Lab Grown Diamond RingM & Co. Pear & Emerald Toi et Moi Lab Grown Diamond Ring
M & Co. Pear & Emerald Toi et Moi Lab Grown Diamond Ring Sale price$1,820.00
M & Co. Heart Diamond Pendant NecklaceM & Co. Heart Diamond Pendant Necklace
M & Co. Heart Diamond Pendant Necklace Sale priceFrom $995.00
Heart Shape Bezel Lab Grown Diamond BraceletHeart Shape Bezel Lab Grown Diamond Bracelet
Heart Shape Bezel Lab Grown Diamond Bracelet Sale priceFrom $5,500.00
M & Co. Multi-Shape Lab Diamond Band RingM & Co. Multi-Shape Lab Diamond Band Ring
M & Co. Multi-Shape Lab Diamond Band Ring Sale price$2,500.00
Lab Grown Diamond Bezel Letter Charm/PendantLab Grown Diamond Bezel Letter Charm/Pendant
Lab Grown Diamond Bezel Letter Charm/Pendant Sale price$650.00
M & Co. East West Wide Oval Diamond RingM & Co. East West Wide Oval Diamond Ring
M & Co. East West Wide Oval Diamond Ring Sale price$950.00
Asscher-Cut Bezel Lab Grown Diamond BraceletAsscher-Cut Bezel Lab Grown Diamond Bracelet
Asscher-Cut Bezel Lab Grown Diamond Bracelet Sale priceFrom $6,500.00
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
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
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
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$2,950.00
M & Co. Drop Station NecklaceM & Co. Drop Station Necklace
M & Co. Drop Station Necklace Sale price$3,370.00
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$2,550.00
M & Co. Prong-Set Heart PendantM & Co. Prong-Set Heart Pendant
M & Co. Prong-Set Heart Pendant Sale price$1,200.00
M & Co. Diamond Heart Station Bracelet
M & Co. Diamond Heart Station Bracelet Sale price$900.00
M & Co. Emerald Cut Hoop EarringsM & Co. Emerald Cut Hoop Earrings
M & Co. Emerald Cut Hoop Earrings Sale price$1,975.00
M & Co. Emerald Cut Lab Grown Diamond Bracelet
M & Co. Emerald Cut Lab Grown Diamond Bracelet Sale priceFrom $3,950.00
M & Co. Bezel LG Diamond Tennis NecklaceM & Co. Bezel LG Diamond Tennis Necklace
M & Co. Bezel LG Diamond Tennis Necklace Sale priceFrom $5,950.00
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
M & 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
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
Blue Topaz Half-Eternity BandBlue Topaz Half-Eternity Band
Blue Topaz Half-Eternity Band Sale price$630.00
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
Lab Grown Diamond Pear Fluted Bezel PendantLab Grown Diamond Pear Fluted Bezel Pendant
Lab Grown Diamond Pear Fluted Bezel Pendant Sale price$1,850.00
Lab Grown Diamond Emerald Cut Double Bezel PendantLab Grown Diamond Emerald Cut Double Bezel Pendant
Lab Grown Diamond Emerald Cut Double Bezel Pendant Sale price$2,950.00
Lab Grown Diamond Button Back Collet PendantLab Grown Diamond Button Back Collet Pendant
Lab Grown Diamond Button Back Collet Pendant Sale price$5,850.00
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
M & Co. Emerald Cut Bezel Drop Earrings
M & Co. Emerald Cut Bezel Drop Earrings Sale price$1,650.00
Lab Grown Diamond Twisted Rope Jacket Band
Lab Grown Diamond Twisted Rope Jacket Band Sale price$2,150.00
Pink Tourmaline Pear Dangle Earrings
Pink Tourmaline Pear Dangle Earrings Sale price$4,500.00
3.56ct Pink Antique Cut Diamond Button Back Collet Ring
3.56ct Pink Antique Cut Diamond Button Back Collet Ring Sale price$7,500.00
2.19ct Pink Antique Cut Diamond Button Back Collet Ring
2.19ct Pink Antique Cut Diamond Button Back Collet Ring Sale price$5,800.00
Rainbow Sapphire Tennis Bracelet
Rainbow Sapphire Tennis Bracelet Sale price$6,950.00
Rainbow Sapphire Hex Bezel Bracelet
Rainbow Sapphire Hex Bezel Bracelet Sale price$12,500.00
Lab Grown Diamond Petite Open BandLab Grown Diamond Petite Open Band
Lab Grown Diamond Petite Open Band Sale price$580.00