At Kosiner Jewelry, we are committed to offering fine jewelry at fair prices, backed by responsive and reliable customer support.

If you have any questions about your order, products, or policies, our team is here to help.

Customer Support

Email (Primary Support Channel):

📧 service@kosinerjewelry.com

Response time: within 24 hours

Customer Support Hours (Eastern Time – EST):

• Monday–Friday: 9:00 PM – 6:30 AM
• Thursday–Monday: 9:00 AM – 6:00 PM
  
  

Additional Contact Options

• WhatsApp: +1 949-781-0955
  Available Monday–Friday, 9:00 PM – 6:30 AM (EST)
  
• Phone:+1 866-982-0533 | Thu-Mon 9 AM-6 PM. (EST)
  Available Thursday–Monday, 9:00 AM – 6:00 PM (EST)
  
  

For Faster Assistance

To help us resolve your request as quickly as possible, please include:

• Your order number
• The email address used at checkout
• A brief description of your question or concern
  
  We aim to provide clear communication and dependable service for every customer.
  

For more information, please review our:
Shipping Policy | Returns & Refunds | Privacy Policy | Terms of Service