• All Duong’s items come with a Certification of authenticity of the brand.
• A Gem identification report (by Gem Center Lab Hanoi) will be supplied (free of charge) upon request for items with value above USD 1,000 (one thousand USD). Please fill in the note section in the Checking out page in case you need one.
• Should you have any special requirement for gem certification (i.e: GIA certification), please tell us by filling in the note section in the Checking out page, we will contact you for further info.

• All gemstones we use are natural, untreated and they are slightly different one from another.
• Natural gemstones are like human beings, each one has its own character. Every color zoning, tiny flaw, inclusions are their personal identity.
• Enjoy your natural gems while embracing their own beauty.

•Our ring size in the dropdown menu above is Hong Kong ring sizing system.
You can read more about how to define your ring size here Size Guide
•Measurements:
Ring length: 2.18cm/ 0.86in
Ring width: 2.15cm/ 0.85in

 DOMESTIC DELIVERY 

• We offer free shipping on all orders within Vietnam by normal post.

INTERNATIONAL DELIVERY 

• We offer free shipping by FeDex on orders of 1200 USD or more.
• Shipping fee by FeDex on orders under 1200 USD is 40 USD.
• We offer free shipping by Fly Express on orders of 600 USD or more.
• Shipping fee by Fly Express on orders under 600 USD is 25 USD.
• We offer free shipping by normal post on orders of 300 USD or more.
• Shipping fee by normal post on orders under 300 USD is 15 USD.

More details here .