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Pre-owned luxury,
Authentically verified.

Trusted IGI authentication to boost a buyer’s confidence in your jewelry.

Faster sales. Better payouts.

Why should you Pre-Authenticate?

Boost trust - unlock better offers

Luxury jewelry pieces carry high value as well as emotional significance. Pre-authentication ensures that the pieces you intend to sell, come with trusted certification and fetches a good value - Authenticate to increase your earning rate.

A loose stone diamond
  • Build trust with right certification
  • Enhanced earning opportunities
  • Hassle-free authentication and shipping

IGI Authentication

Your item receives professional authentication, giving buyers 100% confidence and you, an enhanced selling prowess.

Expert Pricing

Our experts provide trusted price guidance so that you can list without undervaluing your piece(s) and attract the best price.

One click listing

Once authenticated, your jewelry is listed on the GEMGEM website with a badge of verification for buyers.

Certified Value, Instant Offer

Receive a verified offer for your item ensuring fair value for your jewelry.

1,000+
Verified reviews
10,000+
Authenticated items
2,500
Sales Processed
70%
Faster Sales

How does pre-authentication work?

01

Express Authentication

Book the authentication in minutes and ship your item securely to GEMGEM once it’s arranged on our end.

Express Authentication
02

Professional Certification

IGI experts verify and certify your jewelry to ensure trust and visibility. 

Professional Certification
03

Sell & Earn

Once your item is listed with a verified badge and a buyer purchases it, it’s shipped directly to the buyer and you receive a fast payment post that.

Sell & Earn

Cost to pre-authenticate your jewelry

From IGI authentication to secure shipping, GEMGEM handles the process end-to-end — so your item is listed with trust and you get rewarded when it sells

Sell & get rebated

Pay $199

For the Item Price Less than $5K

Pay $239

For the Item Price Estimate between $5K - $15K

Pay $279

For the Item Price Estimate between $15K - $25K

Pay $369

For the Item Price Estimate between $25K - $200K

Stories from users like you

Hear from our customers who listed their items and also bought a pre-owned listed piece from us!

97%
satisfied customers
10 000+
GEMGEM price lower

10 minutes of your time

List your jewelry within minutes and unlock its true value with ease

Certification

Already certified? Move straight to listing.

High-Quality Photos

Capture clear catalogue and lifestyle shots of your gem.

Ruler

Measure your item accurately to begin the listing process.

Sell. Authenticate. Buy

Get the right price for your pre-owned jewelry and enjoy a hassle free journey at every step.

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