About Us

About Us

New Zealand’s premier online Provider of high-quality DIAMONDS

Diamonds.co.nz is New Zealand’s premier online provider of high-quality diamonds — at globally competitive prices.

Paul Bunker (GIA Graduate Gemologist), the founder of diamonds.co.nz, has a wealth of knowledge spanning over 40 years in the diamond industry as a diamond wholesaler to jewellery manufacturers, retail chains, and independent retailers. Paul obtained the Graduate Gemologist (GG) diploma from the Gemological Institute of America (GIA) after completing the Diamond Course in Residence in 1983 — the first New Zealander to do so.

Our in-depth knowledge of diamonds, coloured diamonds, and gemstones means you can be confident in our ability to provide you with an excellent standard of service.

Why Diamonds.co.nz?


We have been diamond merchants in New Zealand since 1984, and have been selling diamonds online for over 15 years. Over the years I have sold diamonds to major jewellery retail chains, jewellery manufacturers and independent jewellers in New Zealand. 

Even though we use the latest technology, first and foremost we are diamond experts as opposed to IT specialists.

exceptional PRICES

Even though diamonds are products of the earth, we believe you shouldn’t have to pay the earth to own a high-quality diamond.

Through our online business model with no retail stores, low profit margins, and low inventory-related costs, we pass savings on to you through lower diamond prices.

Since our prices represent true value all year round, we never have sales or discounts.


With interactive diamond videos, an extensive diamond education section, and diamond experts available to answer any questions, purchasing a diamond from diamonds.co.nz is straightforward, enjoyable, and educational.

With diamonds located in New Zealand as well as those sourced from our offshore supplier network, there is an extensive range of over 60,000 diamonds to choose from.


Diamonds.co.nz currently specialises in selling loose diamonds and coloured diamonds.

If you would like a piece of diamond jewellery created, your diamonds.co.nz purchased diamond can be taken to your preferred jeweller — or ask us about one that we would recommend in your area. This allows you to explore a wide range of potential jewellery options.

Another option is to purchase and hold loose diamonds or coloured diamonds as a store of value.