📚 Le Blog de Fastemy
Le Blog de Fastemy
Des guides utiles et interactifs sur l’apprentissage, la productivité et la valeur des objets, par l’équipe derrière les applis rapides et ludiques de Fastemy.
À la une Collecting & Value
How to Tell If Pearls Are Real: 6 Tests That Work and 4 That Don’t
Collecting & Value
How to Tell If Silver Is Real: 7 Tests That Work and 4 That Don’t
AI & Web DesignGEO Asked Agent: Fastemy’s Free AI Agent That Checks Whether ChatGPT Recommends You
Collecting & ValueHow to Tell If Shoes Are Fake: 12 Sneaker Legit Checks You Can Do at Home
Collecting & ValueWhat Shoes Are These? How to Identify Shoes From a Picture
Collection et ValeurMa bague est-elle en or ? 8 tests qui marchent et 4 qui ne servent à rien
Collecting & ValueReal or Costume Jewelry? How to Tell in Ten Minutes
Collecting & ValueHow to Date a Vintage Ring: Georgian to Retro, Era by Era
Collecting & ValueHow to Identify the Gemstone in a Ring Without Damaging It
Collecting & ValueHow to Sell a Ring for the Most Money
Famous RingsFamous Engagement Rings and What Each One Teaches
Collection et ValeurIdentifier un tableau à partir d’une photo
Collecting & ValueHow to Identify an Unsigned Painting
Famous PaintingsWater Lilies: Monet’s Thirty-Year Obsession
Famous PaintingsSunflowers: Van Gogh’s Yellow on Yellow
Famous PaintingsNighthawks: Edward Hopper’s Painting of a Diner at Night
Famous PaintingsThe School of Athens: Raphael’s Painting of the Greek Philosophers
Famous PaintingsSalvator Mundi: From $1,175 to $450 Million
Famous PaintingsThe Arnolfini Portrait: Van Eyck Was Here
AI & Web DesignHow to Build a Website Quickly and for Free with ChatGPT or Claude
Collecting & ValueIs My Coin Valuable? How to Tell in Five Minutes
Collecting & ValueCoin Grading Explained: The 1–70 Sheldon Scale, Decoded
Collecting & ValueHow to Identify an Old Coin: Six Clues on Every Coin
Plants & GardenHow to Identify a Plant: Leaves, Stems, Flowers and Safety
Collecting & ValueHow to Find Your Ring Size at Home Without Guessing
Collecting & ValueHow to Hang, Light and Protect a Painting at Home
Collecting & ValueRing Metals Compared: 14K, 18K, White Gold, Platinum
Collecting & ValueHow to Sell a Painting: Channels, Fees and What You Keep
Collecting & ValueEngagement Ring Cost: Where the Money Actually Goes
Collecting & ValueTreated Diamonds: Laser Drilling, Fracture Filling & HPHT
Collecting & ValueReading a Painting’s Condition: Craquelure, Overpaint & UV
Collecting & ValueHow to Store a Designer Bag So It Keeps Its Value
Collecting & ValueWhy Your Watch Runs Fast (and What Accuracy Is Normal)
Collecting & ValueCarat vs Size: Why a 0.90ct Looks Like a 1.00ct
Collecting & Value“Attributed To”, “Studio Of”, “After”: Auction Wording Decoded
Collecting & ValueBag Condition Grades Explained: What Rank A, AB, B and C Really Mean
Collecting & ValueWhat 30m, 100m and 200m Water Resistance Actually Mean
Collecting & ValueHow to Identify a Ring: What the Stamps and Hallmarks Inside Mean
Collecting & ValueWhat Is My Ring Worth? Work It Out With a Free Gold Value Calculator
App GuidesHow AI Identifier Apps Actually Work (And Where They Stop)
Collecting & ValueAntique Diamond Cuts Explained: Old Mine, Old European & Rose
Collecting & ValueDiamond Ring Settings Explained: Prong, Bezel, Halo & More
Collecting & ValueConflict-Free Diamonds: What “Ethically Sourced” Really Means
Collecting & ValueHow Art Auctions Work: Estimates, Reserves & the Buyer’s Premium
Collecting & ValueLimited Edition Prints Explained: What 12/150 Really Means
Collecting & ValueHow to Start Collecting Art on a Real Budget
New AppFIT AI: The Simplest Calorie Tracker App
Collecting & ValueDiamond Cut Grades Explained: The C That Makes It Sparkle
Collecting & ValueDiamond Fluorescence: Does It Help or Hurt the Value?
Collecting & ValueHow to Date a Painting: Clues That Reveal Its Real Age
Collecting & ValuePainting Genres Explained: Portrait, Landscape, Still Life & More
Collecting & ValueArt Provenance: Why a Painting’s History Drives Its Value
Collecting & ValueModern vs Contemporary Art: What’s the Difference?
Collecting & ValueHow to Clean and Care for an Oil Painting Safely
Collecting & ValueDiamond Clarity Explained: From Flawless to Included
Collecting & ValueChronograph vs Chronometer: What the Words Really Mean
Collecting & ValueHow to Spot a Fake Gucci Bag
Collecting & ValueDiamond Color Scale: The D-to-Z Grading Chart Explained
Collecting & ValueMoissanite vs Diamond: How to Tell the Difference
Collecting & ValueOil, Acrylic, or Watercolor? How to Tell Paintings Apart
Famous ArtFamous Art Heists: The Masterpieces That Vanished
Collecting & ValueHow to Spot a Fake Chanel Bag: 6 Checks, From Quilting to Serial Number
Collecting & ValueDesigner Bag Date Codes & Serials: How to Read Them and Date Your Bag
Collecting & ValueWatch Movements Explained: Automatic, Quartz, Mechanical
Collecting & ValueWhat Makes a Watch Valuable? A Collector’s Guide
Collecting & ValueDiamond Shapes Explained: How to Pick the Right Cut
Collecting & ValueHow Much Is a 1-Carat Diamond Worth? What Sets the Price
Collecting & ValueFamous Art Movements, Explained: How to Tell Them Apart
Collecting & ValueHow to Identify an Artist’s Signature on a Painting — and Look It Up
Collecting & ValueHow to Tell If a Louis Vuitton Is Real: 6 Checks, From Stitching to Date Code
Collecting & ValueThe Most Iconic Designer Bags of All Time
Collecting & ValueHow to Tell If a Rolex Is Real: 6 Checks That Still Work
Collecting & ValueThe Most Iconic Luxury Watches Ever Made
Famous PaintingsLas Meninas: The Painting That Watches You Back
Famous PaintingsAmerican Gothic: Grant Wood’s Painting of a Farmer With a Pitchfork
Famous PaintingsThe Garden of Earthly Delights: Bosch’s Painting of Paradise and Hell
Famous ArtThe Great Wave off Kanagawa: The Famous Wave That Isn’t a Painting
Famous DiamondsThe Sancy Diamond: A Pale Yellow Gem That Crossed Royal Europe
Famous DiamondsThe Black Orlov: The “Eye of Brahma” and Its Curse
Famous DiamondsThe Taylor-Burton Diamond: Hollywood’s Most Famous Jewel
Famous PaintingsThe Persistence of Memory: Dalí’s Melting Clocks Explained
Famous PaintingsThe Night Watch: Rembrandt’s Masterpiece That Isn’t Set at Night
Famous PaintingsThe Creation of Adam: Michelangelo’s Painting of Two Fingers Touching
Famous DiamondsThe Hope Diamond: History, the Curse, and Why It’s Priceless
Famous DiamondsThe Koh-i-Noor: The World’s Most Contested Diamond
Famous DiamondsThe Cullinan: The Largest Diamond Ever Found
Famous DiamondsThe Tiffany Diamond: 128 Carats of Canary Yellow
Famous DiamondsThe CTF Pink Star: The $71.2 Million Pink Diamond
Famous DiamondsThe Regent Diamond: 140.64 Carats, Napoleon’s Sword and the Louvre
Famous DiamondsThe Dresden Green: The World’s Largest Natural Green Diamond
Famous DiamondsThe Orlov: The Temple Diamond in a Russian Sceptre
Famous PaintingsThe Mona Lisa: Why the World’s Most Famous Painting Is Famous
Famous PaintingsThe Starry Night: Van Gogh’s Painting of a Swirling Night Sky
Famous PaintingsThe Scream: Munch’s Famous Painting of a Screaming Figure
Famous PaintingsGirl with a Pearl Earring: Vermeer’s Mysterious Masterpiece
Famous PaintingsGuernica: Picasso’s Black-and-White Cry Against War
Famous PaintingsThe Last Supper: Leonardo’s Masterpiece That Began to Fade at Once
Famous PaintingsThe Birth of Venus: Botticelli’s Goddess on a Shell
Famous PaintingsThe Kiss: Klimt’s Gold Painting of Two Lovers Kissing
Collecting & ValueHow to Tell If a Diamond Is Real: Tests You Can Do at Home
Collecting & ValueHow to Spot a Fake Painting: An Authentication Field Guide
Collection et ValeurDiamant de Laboratoire ou Naturel : Lequel Acheter ?
Collection et ValeurLire un Certificat de Diamant (le Rapport GIA Décodé)
Collection et ValeurTableau Original ou Reproduction ? Comment les Distinguer
Collection et ValeurReconnaître une Vraie Montre de Luxe : le Guide de l’Expert
Collection et ValeurMon Sac de Luxe Est-il Authentique ? La Checklist en 7 Points
Collection et ValeurLes 4 C du Diamant, Expliqués (Pour Ne Pas Payer Trop Cher)
ProductivityWhy You Think Faster Than You Type (and How to Catch Up)
ProductivityWhy Your To-Do List Keeps Failing (and How to Fix It)
ProductivityTime Blocking: Why Your Calendar Beats Your To-Do List
Learning ScienceSpaced Repetition: The Memory Trick Top Students Swear By
Language LearningWhy You Can’t Speak a Language You’ve Studied for Years
ProductivityHow to Build a Habit That Actually Sticks (Backed by Research)
Collection et ValeurCombien Vaut Mon Tableau ? Guide d’Estimation d’Art
Collection et ValeurComment Identifier un Tableau : Artiste, Style et Valeur
Studio & StrategyThe App Studio Model: Why a Portfolio Beats One Big Bet
ProductivityThe Focus Playbook: How to Do Deep Work in a Distracted World
Creator PartnershipsFrom Audience to App: A Creator’s Playbook
Learning ScienceThe Science of Speed Reading: Read Faster Without Losing Comprehension
App Guides10 AI Apps That Actually Save You Time in 2026
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