You can measure your ring size at home using a ring sizer or by wrapping a strip of paper or string around your finger, marking where it overlaps, and measuring it against a ruler. Compare the measurement with a ring size chart to find the correct size. For the most accurate result, you can also visit a jeweler to have your finger professionally measured.

Yes! All items labeled as natural diamonds are 100% real and authentic, and they come with a stamp and tags for verification. We also offer lab-grown diamonds and moissanite diamonds, and these are always clearly mentioned in the product description so you can choose with confidence.

We offer one complimentary resizing for engagement rings and non-eternity bands within 7 days of delivery. Resizing is available up to ¾ size up or down to maintain the integrity of the ring.

For purchases and deliveries within the U.S., we also provide complimentary insured return shipping both ways, along with a professional cleaning and inspection of your ring during the resizing process.

👉 Please remember to save and return your ring in the original secure packaging. We are not responsible for any damage caused during transit due to improper packaging.

⚠️ Note: Eternity bands (rings with diamonds set all the way around) cannot be resized in order to preserve their design and integrity.

For resizing assistance, please [Contact Us].

Yes. All of our lab diamond engagement rings with center stones of 1.00 carat or larger are GIA certified, and your purchase will include the official GIA or EGL certificate.

For colored diamonds (such as pink or yellow), certification may vary. Unless otherwise specified, most of our colored diamonds are IGI certified.

We always include certification details in the individual product descriptions. If you have any questions or would like guidance on certification, please [Contact Us].

We invite you to explore our Lab-Grown Diamonds page for more detail around how we select our diamonds.

At KBN Jewellery, we proudly stand behind the quality and craftsmanship of our pieces. All engagement rings and jewelry items come with a warranty against manufacturing defects.

This warranty covers only issues that result from a manufacturing defect. It does not cover:

• General wear and tear
  
• Misuse or negligence
  
• Scratches, dents, or warped/misshapen bands
  
• Discoloration caused by chemical contact
  
• Lost or cracked stones
  
• Lost or stolen items
  

⚠️ Please note: Any repair or service performed by a jeweler other than KBN Jewellery will void the warranty.

If you believe your jewelry has a defect, please contact us within 7 days of delivery. We will guide you on how to return your piece for inspection. After review, we may repair or replace the item in alignment with this policy.

For non-warranty repairs or additional services, please see our [Care & Repair] section.

Every piece of jewelry is carefully packaged to ensure both safety and presentation. Your ring or chain pendant will arrive in a signature KBN Jewellery gift box, designed for protection and a beautiful unboxing experience.