• Bernard Nacht & Co. with Crown est 1906™
  • Castellani™
  • Carlo Giuliano™
  • CC®
  • C.G.®
  • Distinctly Bridal™
  • DocuJewel®
  • Dreicer®
  • Old World Jewellery®
  • Simply Engaging®
  • The Royal Flush™
  • The Vault is Open for You!™
  • Timeless Diamonds™
  • Time for Elegance®
  • Treasures from the Past™
  • VirtuJewel™
  • Under the Crown®
  • Wear The Wealth™

Castellani®, Carlo Giuliano®, C.G.® Logo, CC® Logo and Dreicer® Are Registered Trademarks of B. Nacht & Company (UK) Ltd.

We use the following Gemological Laboratories*:

  • Gemological Institute of America (GIA)
  • American Gemological Laboratories (AGL)
  • American Gemological Trade Laboratory (AGTA)
  • Gubelin Gemological Laboratory
  • Gemmological Association and Gem Testing Laboratory of Great Britain
  • GemResearch Swiss Lab
  • American Gem Society (AGS)
  • SSEF Swiss Gemmological Institute

* We also purchase and sell diamonds and gemstones
with reports from these laboratories