Expert guides on jewelry identification, gold karat stamps, vintage diamond rings, and gemstone appraisal.https://thejewelryappraisal.appen-ushttps://thejewelryappraisal.app/blog/24k-gold-bar-identification-guidehttps://thejewelryappraisal.app/blog/24k-gold-bar-identification-guideRead a 24k gold bar's stamps: refiner, 999.9 fineness, weight, serial and year. Tell cast from minted bars, check the assay card, and spot tungsten fakes.Fri, 02 Oct 2026 00:00:00 GMTGold BarsBullion24K GoldMetal PurityCounterfeit Detectionhttps://thejewelryappraisal.app/blog/vintage-cameo-brooch-portrait-dating-guidehttps://thejewelryappraisal.app/blog/vintage-cameo-brooch-portrait-dating-guideDate a vintage cameo brooch from the carved face: nose shape, hairstyle, habillé jewels, which way it faces, and how to tell a real sitter from an ideal head.Tue, 29 Sep 2026 00:00:00 GMTCameosBroochesDating Antique JewelryVictorianAntique Identificationhttps://thejewelryappraisal.app/blog/how-much-is-14k-gold-worth-guidehttps://thejewelryappraisal.app/blog/how-much-is-14k-gold-worth-guideWork out what 14k gold is worth from its weight and today's gold price: the melt value formula, a factor for every karat, and why a buyer pays less than melt.Thu, 24 Sep 2026 00:00:00 GMT14K GoldGold ValueMelt ValueMetal PuritySelling Goldhttps://thejewelryappraisal.app/blog/what-does-950-mean-on-jewelry-guidehttps://thejewelryappraisal.app/blog/what-does-950-mean-on-jewelry-guideA 950 stamp means 95% pure metal, but which metal? Tell Pt950 platinum from 950 silver, see why 950 gold is a myth, and read 950/750 on a two-tone ring.Thu, 24 Sep 2026 00:00:00 GMTPlatinumSilverHallmarksMetal PurityJewelry Stampshttps://thejewelryappraisal.app/blog/berlin-iron-jewelry-identification-guidehttps://thejewelryappraisal.app/blog/berlin-iron-jewelry-identification-guideIdentify Berlin iron: lacquered sand-cast openwork, wirework chain, the neoclassical-to-Gothic shift, and the magnet test that separates it from jet.Sat, 29 Aug 2026 00:00:00 GMTBerlin IronCast Iron JewelryGothic RevivalGeorgianAntique Identificationhttps://thejewelryappraisal.app/blog/roman-micromosaic-jewelry-identification-guidehttps://thejewelryappraisal.app/blog/roman-micromosaic-jewelry-identification-guideTell a Roman micromosaic from millefiori souvenir ware, pietra dura and painted copies: tesserae shape and count, the ground, the mount, and the back.Fri, 21 Aug 2026 00:00:00 GMTMicromosaicGrand TourMillefioriPietra DuraAntique Identificationhttps://thejewelryappraisal.app/blog/cut-steel-vs-marcasite-identification-guidehttps://thejewelryappraisal.app/blog/cut-steel-vs-marcasite-identification-guideTell antique cut steel from marcasite: grey riveted studs against brassy grain-set pyrite, the magnet test, facet counts, and what the reverse reveals.Tue, 18 Aug 2026 00:00:00 GMTCut SteelMarcasitePyriteGeorgianAntique Identificationhttps://thejewelryappraisal.app/blog/art-nouveau-jewelry-identification-guidehttps://thejewelryappraisal.app/blog/art-nouveau-jewelry-identification-guideIdentify authentic Art Nouveau jewelry (1890–1910) using plique-à-jour enamel, whiplash curves, insect motifs, and maker marks from Lalique & Marcus & Co.Wed, 12 Aug 2026 00:00:00 GMTArt NouveauEnamel JewelryPlique-a-jourAntique IdentificationJewelry Historyhttps://thejewelryappraisal.app/blog/antique-brooch-clasp-and-hinge-dating-guidehttps://thejewelryappraisal.app/blog/antique-brooch-clasp-and-hinge-dating-guideDate an antique brooch from its findings: tube and round hinges, C-catch, trombone and safety catches, with the patent years and the attribution windows.Sat, 08 Aug 2026 00:00:00 GMTBroochesJewelry FindingsDating Antique JewelryVictorianAntique Identificationhttps://thejewelryappraisal.app/blog/french-gold-hallmarks-and-eagle-head-identification-guidehttps://thejewelryappraisal.app/blog/french-gold-hallmarks-and-eagle-head-identification-guideLearn how to decode French gold hallmarks: Tête d'Aigle (Eagle's Head), Boar's Head silver, Dog's Head platinum, and assay stamps from 1838 to today.Thu, 06 Aug 2026 00:00:00 GMTFrench HallmarksGold HallmarksEagle HeadPlatinumAntique Identificationhttps://thejewelryappraisal.app/blog/platinum-950-vs-white-gold-identification-guidehttps://thejewelryappraisal.app/blog/platinum-950-vs-white-gold-identification-guideLearn how to distinguish Platinum 950 (Pt950) from 14K/18K White Gold by weight density, hallmark stamps, patina, rhodium plating, and non-destructive testing.Thu, 06 Aug 2026 00:00:00 GMTPlatinumWhite GoldMetal TestingArt DecoHallmarkshttps://thejewelryappraisal.app/blog/victorian-mourning-jewelry-and-jet-identification-guidehttps://thejewelryappraisal.app/blog/victorian-mourning-jewelry-and-jet-identification-guideLearn how to identify authentic Whitby Jet, Vulcanite (hard rubber), French Jet (black glass), and Gutta-Percha in Victorian mourning brooches and rings.Thu, 06 Aug 2026 00:00:00 GMTMourning JewelryWhitby JetVictorianCameosAntique Identificationhttps://thejewelryappraisal.app/blog/british-sterling-silver-925-hallmarks-guidehttps://thejewelryappraisal.app/blog/british-sterling-silver-925-hallmarks-guideLearn how to decode British sterling silver hallmarks: the Lion Passant, town marks (London, Birmingham, Sheffield), and date letters from 1700 on.Wed, 05 Aug 2026 00:00:00 GMTSilver HallmarksSterling 925British SilverAntique Identificationhttps://thejewelryappraisal.app/blog/gold-purity-stamps-and-karat-identification-guidehttps://thejewelryappraisal.app/blog/gold-purity-stamps-and-karat-identification-guideComprehensive guide to decoding gold hallmarks, karat stamps (10k, 14k, 18k, 24k, 585, 750), maker's marks, and testing techniques for antique and fine jewelry.Wed, 05 Aug 2026 00:00:00 GMTGold HallmarksMetal PurityJewelry IdentificationVintage Jewelryhttps://thejewelryappraisal.app/blog/art-deco-engagement-ring-authentication-guidehttps://thejewelryappraisal.app/blog/art-deco-engagement-ring-authentication-guideLearn how to identify authentic 1920s-1930s Art Deco engagement rings, spot geometric filigree, old European cut diamonds, platinum marks, and reproductions.Tue, 04 Aug 2026 00:00:00 GMTArt DecoVintage RingsDiamondsPlatinumAuthenticationhttps://thejewelryappraisal.app/blog/antique-cameo-jewelry-identification-guidehttps://thejewelryappraisal.app/blog/antique-cameo-jewelry-identification-guideLearn how to identify genuine shell, hardstone, coral, and glass cameos, evaluate carved portrait details, date hardware clasps, and spot molded plastic fakes.Mon, 03 Aug 2026 00:00:00 GMTCameosAntique JewelryCarved GemstonesVictorian