Dupes

This list only includes polishes that are at least a 98% match to each other. I will list what I consider either the most popular or original polish first, with the former having priority, so be sure to use your find function to help locate a polish. If you have a suggestion for this list, please email me with the headline, "Dupe," and, if possible, send me a link to a picture that confirms this. If you don't believe one of these is a dupe, I would also appreciate if you could email me with a link. I hope you find this helpful!

• Butter London in Bumster, Finger Paints in Catwalk Queen (via The PolishAholic), American Apparel in Trenchcoat (via Goose's Glitter)
• Butter London in Dodgy Barnett, Catherine Arley in #676 (via Suburban Beauty)
• Butter London in Lovely Jubbly, Sally Hansen in Hard as Nails Xtreme Wear in Rockstar Pink (via Suburban Beauty)
• Chanel in #531 Peridot, China Glaze in Rare & Radiant, OPI in Just Spotted a Lizard (via All You Desire), Jessica in Iridescent Eye (via Goose's Glitter)
• Chanel in #509 Paradoxal, Barry M in Dusky Mauve (via Lipglossiping)
• China Glaze in 108 Degrees, OPI in I'm All Ears (via The PolishAholic)
• China Glaze in Angel Wings, China Glaze in Ultamate Holiday (via The PolishAholic)
• China Glaze in Channelesque, 10 Pro in Showtime, Confetti in Moonstruck (via Frazzle and Aniploish), Essie in Merino Cool (via The PolishAholic)
• China Glaze in Deviantly Daring, Sally Hansen Lustre Shine in Scarab (via Makeup Alley), Nicole by OPI in Candid Cameron (via The PolishAholic)
• China Glaze in Electrify, Sinful Colors in Pumpkin Spice (via Frazzle and Aniploish)
• China Glaze in Lorelei's Tiara, Sinful in Ice Dream (via Frazzle and Aniploish)
• China Glaze in No Plain Jane, Nicole by OPI in Iris My Case (via The PolishAholic)
• China Glaze in Party Hearty, Salon Perfect in Glam Glitter (via Beautylish)
• China Glaze in Want My Bawdy, OPI in Into the Night (via All You Desire), Color Club in Personal Stylist (via The PolishAholic), Nicole by OPI in What's the Mitch-uation (via The PolishAholic)
• China Glaze in Zombie Zest, SpaRitual in Optical Illusion (via Scrangie)
• Color Club in Beyond the Mistletoe, Funky Fingers in Baby Baby Baby, Pop Beauty in Aquatic Glitz (via Frazzle and Aniploish)
• Cult Nails in Captivated, Icing in Tiger's Blood (via The PolishAholic)
• Cult Nails in Happy Ending, Icing in After Party (via Frazzle and Aniploish)
• Deborah Lippmann in Bad Romance, Revlon in #940 Facets of Fuschia/#751 Scandalous (via Fab Fatale)
• Deborah Lippmann in Glitter in the Air, Revlon in Whimsical (more opaque, more opalescent glitter) (via Spaz & Squee)
• Deborah Lippmann in Hard Knock Life, Sally Hansen Magnetic in Graphite Gravity (via Frazzle and Aniploish)
• Deborah Lippmann in Punk Princess, Claire's Magnetic [Pink] (via Frazzle and Aniploish)
• Deborah Lippmann in Ruby Red Slippers, Wet 'n Wild Fast Dry in Behind Closed Doors (via Vampy Varnish)
• Deborah Lippmann in Stairway to Heaven, Revlon in #770 Heavenly (via Frazzle and Aniploish)
• Deborah Lippmann in Superstar, Wet 'n Wild Fast Dry in Cougar Attack (via Vampy Varnish)
• Essie in Greenport, L'Oréal in Water's Edge (via Steph's Closet)
• Essie in Lilacism, Revlon in Gum Drop (via Frazzle and Aniploish)
• Essie in Masquerade Belle, Avon in Tweed (via Spaz & Squee)
• Essie in Miss Fancy Pants, L'Oréal Paris in Eiffel for You (via Frazzle and Aniploish)
• Essie in Sag Harbor, L'Oréal in High Tide (via Steph's Closet)
• Essie in Shelter Island, L'Oréal in Ocean Breeze (via Steph's Closet)
• Essie in Smokin' Hot, Sally Hansen Hard as Nails Xtreme Wear in Grey Area, Nina Ultra Pro in Never Glum Plum (slightly lighter) (via Frazzle and Aniploish)
• Essie in Velvet Voyeur, Sally Hansen Complete Salon Manicure in Pat on the Black (via Frazzle and Aniploish)
• Hard Candy in Envy, RGB in Sea (via Vampy Varnish)
• Illamasqua in Lament, Sally Hansen Xtreme Wear in #405 Coral Reef (via Nailblog.net)
• Nails Inc. Special Effects in Bloomsbury Square, Wet n Wild ColorIcon in Back Alley Deals (via Frazzle and Aniploish)
• Nails Inc. Special Effects in Connaught Square (slightly darker base), Wet n Wild ColorIcon in Believe Me, It's Real (via Scrangie)
• Nars in Purple Rain, China Glaze in Let's Groove (via The Swatchaholic), Orgasm Cosmetics in Dripping Wet (here)
• Nicole by OPI in I'm a Belieber, OPI in Pack Your Booty Shorts (via Frazzle and Aniploish)
• Nicole by OPI in Me+Blue, OPI in The Flowers are Blue-ming (via Frazzle and Aniploish)
• Nicole by OPI in Mer-Maid for Each Other, Missha in HRG01 (via Nails and Noms), China Glaze in Unpredictable (via The PolishAholic)
• Nicole by OPI in Nothing Kim-pares to Blue, Nicole by OPI in Stand By Your Manny (via The PolishAholic)
• Nicole by OPI in On Time Lime, OPI in Hot Fun in the Summer-lime (via Frazzle and Aniploish)
• OPI in Berlin There Done That (slightly darker), American Apparel in Mouse (via The PolishAholic)
• OPI in Big Hair Big Nails, Zoya in Kate (via Frazzle and Aniploish)
• OPI in Can't Find My Czechbook, Zoya in Rocky (via The Polishaholic)
• OPI in Danke-Shiny Red, Zoya in Elisa (via The PolishAholic)
• OPI in Did It On 'Em, Nicole by OPI in Sweet on Pete (via The PolishAholic)
• OPI in Did You 'ear About Van Gogh?, Zoya Farah (via The PolishAholic)
• OPI in Dim Sum Plum, Zoya in Areej (via Let Them Have Polish!)
• OPI in Dutch 'Ya Just Love OPI?, Zoya Tru (via The PolishAholic)
• OPI in Every Month is Oktoberfest, Misa in Uptown Glamour (via All You Desire)
• OPI in Funky Dunkey, Zoya in Mira (via Let Them Have Polish!)
• OPI in GoldenEye, Sally Hansen Complete Salon Manicure in Gilded Lily (via Dizzy Nails)
• OPI in Got the Blues for Red, Orgasm Cosmetics in In Your Dreams (here)
• OPI in Here Today, Aragon Tomorrow, Revlon Colorstay in Jungle, NYC In a New York Color Minute in Flat Iron Green (via Frazzle and Aniploish)
• OPI in Ink, OPI in Nevermore (via Scrangie)
• OPI in Kiss Me On My Tulips, OPI in All Kendall-ed Up (via The PolishAholic)
• OPI in Last Friday Night, Sally Hansen Xtreme Wear in #24 Shooting Star (via Addicted to All Things Pretty)
• OPI in Magazine Cover Mouse (slightly more shimmer), JulieG in Hot Cinnamon (slightly darker) (via The PolishAholic)
• OPI in The Man With the Golden Gun, Jessica in Gold Leaf Top Coat, Ninja Polish in The Midas Touch (via The PolishAholic)
• OPI in Merry Midnight, Orly in Fowl Play (via Gilded Nails)
• OPI in My Very First Knockwurst, Zoya in Kennedy (via The PolishAholic)
• OPI in Nein! Nein! Nein! Ok Fine!, Zoya in Noot (via The PolishAholic)
• OPI in Parlez-Vous OPI?, Joe Fresh in Fig (via Spaz & Squee, Frazzle and Aniploish)
• OPI in Pink Flamenco, Nicole by OPI in Spring Break (via The PolishAholic)
• OPI in Plugged-In Plum, Sinful Colors in Fig (via Nouveau Cheap)
• OPI in Rainbow Connection, JulieG in Light It Up (via The PolishAholic), Nicole by OPI in Rainbow in the S-Kylie (via Polish Insomniac)
• OPI in Rally Pretty Pink, Zoya in Faye (via The PolishAholic)
• OPI in Royal Rajah Ruby, OPI in Sanguine (via Scrangie)
• OPI in Sapphire in the Snow (slightly more purple), Finger Paints in Amethyst Atelier (slightly more blue) (via Frazzle and Aniploish)
• OPI in Shorts Story, OPI in Moust You Moust (via The PolishAholic)
• OPI in Sprung, Jessica in Pumpkin Delight (slightly darker) (via The PolishAholic)
• OPI in Suzi Says Feng Shui, Zoya in Breezi (via Let Them Have Polish!)
• OPI in Unripened, Nicole by OPI in Blues in the Night, Jessica in Casablanca (via Scrangie), Sinful Colors in Love Bite (via The PolishAholic) 
• OPI in Vampire State Building, Revlon in #570 Vixen (via Confessions of a Sarcastic Mom)
• OPI in Visions of Sugarplums, Finger Paints in Icy Iris (via Misa Polish)
• OPI in Y'All Come Back Hear, Zoya in Coraline (via Frazzle and Aniploish)
• OPI in You Only Live Twice, Finger Paints in Magenta Mood, Joe Fresh in Sweet Tart Bon Bons (via Frazzle and Aniploish)
• Orly in Aqua Pixel, JulieG in Rock Candy (via The PolishAholic)
• Orly in Galaxy Girl, MAC in Formidable! (via All Lacquered Up)
• Orly in Glitz & Glamour, SpaRitual in Solstice (via All You Desire)
• Orly in Jealous Much, American Apparel in Office (via Frazzle and Aniploish)
• Orly in Luxe, Illamasqua in Swinger (via All You Desire)
• Orly in Plum Noir, Zoya in Lael (via Spaz & Squee)
• Orly in Pure Porcelain, Orly in Decades of Dysfunction (via The PolishAholic)
• Orly in Royal Velvet, Orly in Mysterious Curse (via The PolishAholic)
• Orly in Space Cadet, MAC in Mean & Green (via All Lacquered Up)
• Rescue Beauty Lounge in 360, Joe Fresh in Teal (via Spaz & Squee)
• Rescue Beauty Lounge in Diddy Mow, Essie in Sew Psyched (via Sonidlo's Nail Polishes), Joe Fresh in Khaki (via Spaz & Squee), Sonia Kashuk in Fatigued (via The PolishAholic)
• Sally Hansen Complete Salon Manicure in Hidden Treasure (densest), GOSH in Rainbow, Finger Paints in Flashy, Color Club in Snow-flakes, Nubar in 2010, Essie in Shine of the Times (via Polish Insomniac)
• Sally Hansen Gem Crush in Be-Jeweled, Wet n Wild ColorIcon in It's All in the Cut (more dense) (via Frazzle and Aniploish)
• Sally Hansen Gem Crush in Glitz Gal (less opaque), Wet n Wild ColorIcon in Diamond in the Rough, Nails Inc. Special Effects in Sloane Square (via Frazzle and Aniploish)
• Sally Hansen Sugar Coat in Cherry Drop, Milani Texture in Tainted in Red (via Frazzle and Aniploish)
• Sephora by OPI in I'm With Brad, Confetti in #041 Masquerade Ball (via Love Polish)
• Sephora in Mermaid to Order, Sally Hansen Complete Salon Manicure in Lagoon (via Takij's blog and Steph's Closet)
• Sinful Colors in Daddy's Girl, Sinful Colors in Dawn (via Frazzle and Aniploish)
• Sinful Colors in Hottie (more dense), Confetti in Party Palace Blue (via Frazzle and Aniploish)
• Sinful Colors in Let's Talk, Sinful Colors in Lang Lang (via Frazzle and Aniploish)
• Wet n Wild Wild Shine in Wild Orchid, Wet n Wild Wild Shine in Midnight (via Frazzle and Aniploish)
• Zoya in Beatrix, JulieG in Tangerine Dream (via The PolishAholic)
• Zoya in Belle, Sally Hansen Diamond Strength in Peach Pavé (via Frazzle and Aniploish)
• Zoya in Caitlin, SpaRitual in A World of Compassion (via All You Desire)
• Zoya in Charla, OPI in Catch Me in Your Net, Orly in Hailey's Comet (via All You Desire)
• Zoya in Dahlia, Nicole by OPI in A-nise Treat (via The PolishAholic)
• Zoya in Electra, Nicole by OPI in Stars at Night (via The PolishAholic)
• Zoya in Faye, OPI in Rally Pretty Pink (via All You Desire), Orly in Ingenue (more shimmer) (via Alizarine)
• Zoya in FeiFei (more blue), OPI On Her Majesty's Secret Service (more grey), Sinful Color's in Winter Wonderland (dupe for OPI) (via Frazzle and Aniploish)
• Zoya in Jem, Orly in Rococo a Go-Go (via The PolishAholic)
• Zoya in Tamsen, OPI in Off with Her Red! (via Let Them Have Polish!)
• Zoya in Tanzy, Sephora by OPI in Once a Cheetah, Always a Cheetah (via The PolishAholic)
• Zoya in Yummy, Revlon ColorStay in #170 Coastal Surf (via Vampy Varnish)