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Help Center

GEMGEM Pre-Authentication

Is the authentication process complicated?
How long does the pre-authentication process take?
How do I start?
What items are eligible for Pre-Authentication?
Cost to pre-authenticate your jewelry
If my jewelry doesn’t sell, is the fee refundable?
Can I submit multiple pieces for a discount?
Is shipping my jewelry safe?
What if the result is different from my expectations?
Can I deliver in person?
Why should I use Pre-Authentication?
Does authentication really help me sell faster and at a better price?
What if I already have an IGI certificate?

How to Sell

Need more help?
How do I sell diamonds or jewelry on GEMGEM?
What are the payment terms?
How do I list my item on GEMGEM?
How is the price of a jewelry item determined?
What if my diamond jewelry contains additional stones?
How will I know when my listing is approved?
Can a buyer withdraw their offer?
How do I receive my payment?
If I decline the buyer’s offer will I get my item back?
Will I get an order confirmation?
What happens if my item gets lost or stolen while in the shipment?
Does GEMGEM insure my jewellery?
Will GEMGEM save my credit card details?

About Selling

What does it cost to sell diamonds/jewels on GEMGEM?
What if I don’t know what type of diamond I have? How do I list such an item?
How will I know I priced my item correctly?
What if I don’t agree with the buyer’s bid?
How can I place shipping requests on GEMGEM?
Is GEMGEM safe?
How will the delivery be done?

About Verification

What documents do I need to list an item on GEMGEM?
I don’t have my Diamond Physical grading certificate. Will I still be able to list my items and sell them on GEMGEM?
Is GIA and IGI authentication mandatory to list my item?
Why do I have to ship my item to IGI?
If I lose the certificate can it be duplicated?
How long will IGI hold my item with them once it is sent to them for verification?
In what form will I get my Diamond verification report?
What are the charges for Diamond verification from IGI?
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authenticity iconAuthenticity Guarantee
All items sold on GEMGEM are guaranteed authentic and made from genuine materials as described.