I bought three earrings from kosiner. Two seem good and excellent for the price (although I've only had the earrings for a couple weeks so can't say if they'll tarnish or are proper 14k gold as sold... See more
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Beautiful earrings, I ordered two pairs of 14k gold earrings, flat back, with diamonds and they are lovely. They seem good quality for the price and look very cute and elegant. The customer service has been very helpful and friendly. Will definitely order again in the future and also recommend to friends.

Reply from Kosinerjewelry
Absolutely the worst seller I’ve ever dealt with. I bought what was advertised as earrings, only to receive a single tiny earring—completely useless when you expect a pair. When I reached out to return it, they refused, hiding behind a “policy” that conveniently wasn’t clearly disclosed upfront.
I went back to their website and had to dig through fine print buried at the very bottom of the page to find any mention that they sell single earrings instead of pairs. This feels completely intentional and misleading.
After multiple frustrating back-and-forth messages, they finally agreed to accept the return. I sent the item back, they received it—and then completely disappeared. No update, no refund, no response to repeated follow-ups.
This seller is unprofessional, misleading, and a complete waste of time. DO NOT BUY anything from them unless you’re prepared to deal with poor communication and shady practices.

Reply from Kosinerjewelry
Ordered a pair of 14k studs. Arrived on time and looked cute. They also sent a pair of hoops as a free gift, will definitely order again.
cute earrings I ordered the flat back style it’s very comfy to wear everyday
I ordered two helix hoops and they are beautiful. Sadly, I ordered the wrong size and they are helping me with exchanging them for a bigger size.

Reply from Kosinerjewelry
I love my tri-stud flat back earring that I purchased. It came exactly as described. I have been looking for this piece for a long time. So glad I found this website.

Reply from Kosinerjewelry
This site is a complete scam. They took the money and never sent the product. They take several days to respond to emails, and the response is AI-generated, very generic, and does not address the issue. Do NOT buy from them.
Update:
They contacted me as soon as this review went up and offered to process a full refund as well as to ship the product at no cost. My original order arrived over a month later. It was packaged well, looked beautiful and felt solid quality. I’m glad that my issue was resolved but the initial customer services process was absolutely unacceptable. Seems like this is the main reason this brand receives poor ratings.

Reply from Kosinerjewelry
I ordered some Helix hoops from them and ordered the incorrect size. I contacted them and they let me exchange and get the correct size. I was very impressed by the jewelry and how quick I received my order. I will definitely be buying from them again! I would recommend this company for your jewelry needs.

Reply from Kosinerjewelry
KosnierJewelry is a wallet friendly, quality material brand with exceptional customer service. I would highly recommend their pieces to anyone. I had an issue with post sizing and the customer service team was very responsive.

Reply from Kosinerjewelry
Edit: After I made this review, they sent me the correct size for backs which I greatly appreciate. The circles on the backs are so small, the earrings fall out of one of my piercings.
I bought over $400 worth of diamond and 14k gold jewelry and followed the online guide for sizing. Unfortunately, upon receiving the earrings and comparing to earrings I already own, I realized the size was too long. I tried to contact customer service to be told to buy more earring backs at a discount. I told them I was not interested in buying more, I simply wanted to exchange them. Since, they have been giving me the runaround, telling me they're going to send my situation to another department, and then department has been on holiday. It's been over a month since I initially emailed them about the issue and it still hasn't been resolved. I would not buy from them again, nor would I recommend anyone else to.

Reply from Kosinerjewelry
I purchased 5mm post for my tragus piercing that was too small, though it was the only piece that fit the jewelry that i had intended to use it for after searching several other sites and local piercing studios. I reached out to customer service and they responded timely and willing to assist with an exchange.

Reply from Kosinerjewelry
I ordered 3 gold piercings. Yes, they are real gold. BUT the sizes a lot smaller than the picture. They also skimp on gold: the bar is super super thin, my professional piercer refused to use it as it would cause the piercing to move around too much. Quality is poor in general: the little gold heart I bought is unevenly cut and looks low quality CNC work... I managed to get a 20% refund but still, it was stupidly expensive for useless, ugly piercings. The gold value is near zero as they use so little actual metal...

Reply from Kosinerjewelry
Great products and responsive customer service! I accidentally ordered the wrong sized product but the customer service was incredibly helpful in ensuring the process was quick and smooth!

Reply from Kosinerjewelry
Excellent customer service!! I accidentally ordered the wrong post size. The replaced it for me free of charge! Super impressed highly recommend!!
I am working on curating an ear that covers lobe, stackd lobe, low helix, double forward helix and daith. They all need to flow together! It took 2 tries, but they stood by their product, and no doubt the next one will be perfect!
Customer service was responsive when I requested an exchange however it’s been over a month since my earrings were delivered back and I keep getting a generic response that they have escalated my request for an update and silence.

Reply from Kosinerjewelry
If you value your money do not buy from them their piercing broke after one day of use.
I couldn’t even submit a picture as it fell while wearing thats how horrible it was

Reply from Kosinerjewelry
Do not use this company! I spent over £100 on an order on the 8th Feb and I have received no update on the status of my delivery. I have reached out to customer service multiple times with no response. Be very wary of this company!

Reply from Kosinerjewelry
Piercing was loose, took a week to get them to ask me if I wish to exchange it for a new one, but when I refuse and asked for a refund, they refused! Each email took 2-3 days to get responded.

Reply from Kosinerjewelry
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