KOSINER 14K Solid Gold Ultra Bright Square Flatback Stud — sharp, clean sparkle, designed for everyday ear styling. This sleek stud features a precision-cut square stone, held securely in a minimalist four-prong setting for a bold, modern look. Available in lab diamond or ultra-shine AAAAA cubic zirconia, it delivers a bright, eye-catching sparkle that elevates any ear stack. Crafted from solid 14K gold with a smooth internally threaded flatback, it’s comfortable enough for all-day wear, even while sleeping. Solid 14K gold — real gold, no plating Ultra bright square stone — sharp, clean sparkle Four-prong setting — secure, minimalist design Lab diamond / AAAAA CZ — two sparkle options Flatback comfort — no poking, sleep-friendly Internally threaded — secure, no loosening 3 post lengths — 5mm / 6.5mm / 8mm Hypoallergenic — safe for sensitive ears Waterproof & tarnish-proof — wear it daily Details & Fit Material14K Solid Gold Top & Flatback Post StoneLab Diamond / Ultra Shine AAAAA Cubic Zirconia Gauge18G (1.0mm) Post Length5mm / 6.5mm / 8mm ClosureFlat Back Thread TypeInternally Threaded Labret DesignSquare Stone Four-Prong Stud Best ForLobe, helix, tragus & cartilage Sold AsSingle Stud Tip: 5mm = snug fit · 6.5mm = standard · 8mm = thicker cartilage. Ideal for lobe, helix, tragus, and conch piercings. Styling Tips Designed to shine in any stack. Wear it alone as a statement piece, or pair it with round studs and hoops for a balanced curated ear look. Its sharp square cut adds a modern edge to both minimal and bold styling. Jewelry Care Clean with mild soap and warm water. Pat dry with a soft cloth. Store separately in a dry jewelry box to keep the stone scratch-free and sparkling bright. Quality Promise Made from genuine 14K solid gold and carefully selected stones. The internally threaded flatback design reduces irritation and ensures a secure fit for daily wear. Built to last — durable, skin-friendly, and long-lasting. .kosiner-pdp{font-family:inherit; line-height:1.6; color:inherit;} .kp-hero{padding:2px 0 10px;} .kp-title{font-size:1.05rem; margin:0 0 8px; font-weight:700;} .kp-sub{margin:0 0 10px; opacity:.92;} .kp-bullets{margin:0; padding-left:18px;} .kp-bullets li{margin:6px 0;} .kp-accordion{margin-top:12px; border-top:1px solid rgba(0,0,0,.12);} .kp-item{border-bottom:1px solid rgba(0,0,0,.12); padding:8px 0;} .kp-summary{cursor:pointer; font-weight:700; list-style:none; outline:none;} .kp-summary::-webkit-details-marker{display:none;} .kp-summary:after{content:"+"; float:right; opacity:.7;} details[open] .kp-summary:after{content:"-";} .kp-content{padding:10px 0 2px;} .kp-spec{margin:0; padding:0; list-style:none;} .kp-spec li{display:flex; justify-content:space-between; gap:12px; padding:6px 0; border-top:1px dashed rgba(0,0,0,.10);} .kp-spec li:first-child{border-top:none;} .kp-spec span:first-child{opacity:.78;} .kp-spec span:last-child{text-align:right;} .kp-note{margin:10px 0 0; opacity:.78; font-size:.95em;} @media (min-width: 768px){ .kp-title{font-size:1.15rem;} }