James R.
5 Stars!
Good quality product and when I had a quick question, support got back to me very quickly

Kosinerjewelry is listed under Jewelry & Watches.
Kosinerjewelry (kosinerjewelry.com) has 269 customer reviews on Five Star Index, with an average rating of 4.3 out of 5.
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James R.
Good quality product and when I had a quick question, support got back to me very quickly
Andrea M.
I’m absolutely delighted with my 14K Solid Gold Opal Ear Piercing Stud from Kosiner Jewelry. The earrings feel luxurious and substantial without being heavy, and the opal stone has a beautiful glow that catches the light perfectly. The quality of the materials and craftsmanship is excellent . On top of the lovely product, Kosiner’s customer service was fantastic — responsive, friendly, and genuinely helpful from start to finish. Highly recommend both the stud and the brand!
Okti
Great support always ready and fast to help customers. Very good quality jewelry.
Alondra R.
Great quality
jonathancruz
Los productos vienen bien embalados y de buena calidad.
Dodo
Der Schmuck sieht super schön und hochwertig aus. Insbesondere das Kosinerjewelery Team ist super kulant und antwortet umgehend, sollte es ein Problem geben. Super Service!! Vielen Dank.
Response from KosinerjewelryJan 27, 2026
Vielen herzlichen Dank für Ihr tolles Feedback! ❤️ Es freut uns riesig zu hören, dass Ihnen der Schmuck gefällt und Sie mit unserem Service zufrieden sind. Wir geben immer unser Bestes, um schnell und kulant zu helfen – Ihr Lob bedeutet uns sehr viel! Wir hoffen, Sie bald wieder bei uns begrüßen zu dürfen. Bis dahin alles Gute und liebe Grüße! Ihr Kosiner Jewelry Team
Anne
Ordered the wrong size and they handless
エゴダ マ.
I accidentally ordered a 5mm flat back earring. But as my piercing was new it didn’t fit my ear . When I emailed them , they sent me a free 8mm post with free shipping. Will definitely buy from them again. ✨
Response from KosinerjewelryJan 27, 2026
Wow, thank you so much for sharing this! 🥳 We're over the moon to hear that the 8mm post arrived just right — and we're even happier you felt taken care of. Helping you get the perfect fit (especially with a fresh piercing!) is what we love to do. Can't wait to see what you'll pick next! ✨ Warm regards, The kosinerjewelry Team