Why Adamastar

We guarantee to match the price of any overseas item of jewellery.

Buying a diamond ring is an exciting time for you on your journey together, but it can be complicated and confusing with all the options available.
You’ve most likely done some online research, visited some jewellery stores, perhaps seen some designs you like and even tried some rings on, but how do find the best way to achieve your dream ring.

With so many options and too many technical terms, you may feel that your dream ring may cost more than what you had hoped or planned for. You may realise that not only will you need to compromise on your diamond’s size, its quality, and setting design, you may also feel you will have to compromise on your ethics. How can you be sure you’re not supporting blood diamonds, and how can you make a more environmentally sustainable choice?
This is where Adamastar can help with Laboratory Grown Diamonds. Our Laboratory grown diamond engagement rings tick all the boxes for price and ethical concerns and our extensive knowledge can demystify the process to make the purchase of your dream laboratory diamond ring a pleasant experience on your life’s journey.

Adamastar, is Bill and Ron, two qualified Gemmologists. They have been in business for over twenty years, as partners in a successful Jewellery Appraisal company. Their comprehensive jewellery backgrounds can guide you through the process and suggest the best way you can own your dream piece of jewellery. You can meet them in a relaxing, private, environment, where the decades of experience and love of jewellery will help demystify the subject. They passionately believe that the future of the diamond industry is laboratory created diamonds, and they love to share their knowledge of the superior advantages that these precious gems have on so many levels, including price, ethics, sustainability and environmental. You won’t be disappointed!


Adamastar services

Adamastar offers an unparalleled level of service and many of your questions may be answered below. For more information about any of our services, email or chat with us. Contact.

  • Free Ring Sizing
  • Diamond Report on centre laboratory made diamond
  • Free Insurance Appraisal
  • Free secure Shipping
  • GST Free Purchase
  • Free Presentation Box
  • Lifetime Product Warranty
  • Free Annual Cleaning and checking
  • Free Diamond Ring Cleaning kit

Ring Sizing
Adamastar offers free ring resizing on all rings even if its wrong first time.

Diamond Report
Every Diamond over 0.50cts is accompanied by its individual IGI Diamond Certificate. The certificate’s number is laser inscribed on the girdle of the diamond. Before we sell any diamond, the gemmologists at Adamastar check that they are happy with the diamond grading and that it matches GIA grading criteria.

Professional Jewellery Appraisals
Adamastar provides a professional jewellery appraisal with all items for Insurance purposes.

Free Secure Shipping
Adamastar offers free, secure signature required courier delivery within New Zealand. Currently we do not send overseas.

GST Free Purchase
If you are travelling overseas and you are a New Zealand resident, then you are entitled to export your diamond jewellery GST free through Auckland International Airport and pick up at ‘The Collection Centre’ before boarding your international flight. You can then save 15% on your purchase but there is a cost involved. If this choice is made. Contact us to see if it is worthwhile, see GST Free Purchase. (New copy)

Free Boxes
All Adamastar products come with a free presentation box.

Product Warranty
We give an uncompromising lifetime warranty on the workmanship of every item we sell.

Cleaning and Servicing Your Ring
We recommend that you have your ring cleaned, polished, and have the claws inspected every twelve months. This service is complimentary.

Free Cleaning Kit
With every diamond item we sell, we supply instructions and a kit to keep your diamond ring shiny and clean.

magnicent gemstone

If you were fortunate enough to discover a rough diamond in the ground, you might assume it is just another unremarkable, irregular shaped pebble.

It has taken diamond cutters generations of experimenting and passing down the (often jealously guarded) knowledge, of the physical and optical characteristics of such an unremarkable pebble, to bring out the brilliance and fire of a polished round brilliant cut diamond.

There is a wonderful symmetry with artisans skilfully beautifying this magnificent gemstone and now, with human ingenuity, actually creating it.

A lab-grown diamond is a diamond for the future. We invite you to experience the wonder of lab-grown diamonds for yourself in an exquisite piece of jewellery from Adamastar.