Mark is a qualified gemmologist, diamond grader and jewellery valuer. Insurance valuations are promptly performed on the premises. I recommend your jewellery should be regularly re-valued. Many insurance policies require an updated valuation to be done every 2 years in order to fully cover your precious items.All Valuations are backed up on my computer. So if you ever lose your Valuation, or need a current price on a piece that I have valued 2 or more years ago, I have all the information and can send you a new copy by post.


I understand that the loss or theft of a piece of jewellery is a horrible experience, one that I hope I can make a little less stressful for you. At Mark Nathan we specialize in world-wide insurance cover for loss or theft, so you can be assured your precious piece is covered from the moment you step outside our store. And if you need to make a claim, Mark will work directly with your insurance company or assessor to save you time too.

  • Insurance – Called Q Report (Q Report only applies to jewellery, not loose diamonds). Each Mark Nathan piece comes to you with a full Certificate of Authenticity, and a complimentary 12 month worldwide insurance policy underwritten by Chubb Insurance for purchases over $1,500.00.
  • 12 months of worldwide international cover.
  • Immediate cover before you leave our design studio.
  • An agreed value policy.
  • Fully comprehensive protection against theft, damage, or loss.
  • Guarantee that you can always return to us in the case of any claim.
  • Annual revaluation of your jewellery at no additional costs.

Other Services

At Mark Nathan Jewellery we don’t just do diamond rings, we offer many other services including:

  • Pearl restringing.
  • Custom made pieces.
  • Lifetime complimentary clean and check service.
  • 30 day refund policy – excludes lay-by’s and custom orders.
  • Lay-by up to six months.
  • Expert repair and restoration service.
  • Secure national delivery.
  • International diamond grading certificates.
  • Gift vouchers.
  • Exceptional quality and craftsmanship.
  • Buying direct from the manufacturer – ensures you are receiving the most competitive prices.