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The Granddiamonds Guarantee

Customer Service

Our ravely-reviewed Customer Service team of non-commissioned diamond and jewelry experts is here for you 24/7.

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  • Opening hours:
  • Sunday 10:30am–6pm
  • Monday 10am–6pm
  • Tuesday 10am–6pm
  • Thursday 10am–6pm
  • Friday 10am–6pm
  • Saturday Closed
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