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3 main Tips for preparing your diamonds and jewellery for sale

SYJ By Appraisal Editorial Team
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3 main Tips for preparing your diamonds and jewellery for sale
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If you’re planning to sell a substantial amount of old jewellery, including potentially loose diamonds, this blog article can guide you in preparation, ensuring you secure the best possible deal.

Key Highlights:

1. Check for Gold Stamps:
– Know the purity of your gold to ensure accurate valuation.
– Gold purity levels range from 9k (37.5% pure) to 24k (100% pure).

2. Bring Gemological Certificates and Documents:
– Certification from premium labs like GIA increases diamond value.
– Documents from brands like Cartier and Tiffany’s add credibility.

3. Research and Compare Buyers:
– Identify at least two credible buyers and compare offers.
– Credible buyers have good reputations, operate transparently, and are licensed.

4. Maximise Your Outcome:
– Follow these tips to get the best value for your jewellery.
– Verify gold and diamond details and choose the right buyer.

gold jewelry

Check for gold stamps. The purity of the gold is crucial in determining the price per gram. As different gold Karat means the alloy contains different amounts of gold. By sorting yourself you show the buyer that you have some knowledge and also prevent mistakes like taking 18K gold as 14K gold.


These are the gold purity levels: 

    • 9k gold contains 37.5% pure gold.
    • 10k gold contains 41.7% pure gold.
    • 14k gold contains 58.3% pure gold.
    • 18k gold contains 75% pure gold.
    • 20k gold contains 83.3% pure gold.
    • 21k gold contains 87.5% pure gold.
    • 22k gold contains 91.7% pure gold.
    • 24k gold is 100% pure gold.

Bring the gemological certificate or any other document you can find. This is a very important point especially if you had a certification of a premium lab of papers from premium brands like Cartier, Tiffany’s and such. Invest in looking for them! 

This is important because as buyers we pay in general more for a diamond with GIA certificated than an uncertified diamond that needs to be sent to the lab for evaluatioN and there are time and risk involved. 

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Bring the gemological certificate or any other document you can find. This is a very important point especially if you had a certification of a premium lab of papers from premium brands like Cartier, Tiffany’s and such. Invest in looking for them! 

This is important because as buyers we pay in general more for a diamond with GIA certificated than an uncertified diamond that needs to be sent to the lab for evaluatioN and there are time and risk involved. 

These are some of the more credible gemological labs

  • GIA: Gemological Institute of America. A nonprofit organisation that is one of the world’s foremost authorities on diamonds, coloured stones, and pearls. GIA is renowned for its rigorous grading standards and research in gemology.
  • HRD: Hoge Raad voor Diamant (HRD Antwerp). Based in Belgium, it’s one of Europe’s prominent diamond grading organisations. Known for its high-quality diamond grading reports and gemological education.
  • IGI: International Gemological Institute. A popular organisation for diamond, coloured stone, and jewellery certification. Known for its global reach and presence in major trade cities, it’s widely recognized in the industry for appraisals and grading reports.
  • GRS: GemResearch Swisslab. A Switzerland-based gemological laboratory that specialises in the grading and analysis of coloured gemstones. GRS is known for its research in gemstone origin and treatment detection.
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Research places to sell your jewellery and mark at least 2 credible buyers and try to get at least 2 offers. In our opinion based on experience indications for Credible buyers will be for example: 

  • They pay for diamonds regardless of their size. 0.10 CARAT OR 0.01 OR 0.20. Any size. 
  • They will show a good online reputation. 
  •  will act in transparency and will have patience to any question you might have. 
  • They will offer a private environment to get a free consultation.
  • They will examine your jewellery in front of you and not in any back room. 
  • They will be licensed by the government to buy diamonds and gold from the general public. 
  • They will have specialised knowledge in the diamond trade – this is crucial for larger diamonds. 
  • They will put no pressure for you to sell. 
  • They will give alternate ways of dealing for some items like consignment.

Conclusion:

Selling your gold and diamond jewellery can be a smooth and rewarding experience with a bit of preparation. Start by checking the purity of your gold and gathering any relevant certificates or documents. Research potential buyers, compare offers, and choose someone trustworthy. By doing this, you’ll get the best value for your items and ensure a positive selling experience. With a little effort, you’ll feel confident and satisfied with your decision. Good luck!

We hope these tips will help you sell your jewellery with the best outcome for you.

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