Quality & Value

Our quality standards are among the highest of all jewellers. At Blue Nile, shopping is risk-free because you've come directly to the finest loose diamonds and jewellery available. We use only the finest materials to create jewellery with exceptional craftsmanship. We're confident that you won't find a better diamond or piece of jewellery for the price.

This combination of exceptional quality and extraordinary value has drawn thousands of couples to Blue Nile.

Qualified Guidance

Our team of diamond and jewellery consultants has a complete understanding of diamond grading, and each member has a detailed understanding of the full Blue Nile product line. They are ready to answer any product question you may have, help you decide between items, and guide you through the process of selecting the perfect diamond or jewellery item.

Blue Nile Education

In addition, we've created a Product Education section of our Web site so that you can learn to identify quality diamonds and fine jewellery at your convenience and make a purchase decision with confidence.

Highest Diamond Quality

As the largest online diamond retailer, Blue Nile offers the largest collection of the world's finest cut diamonds. Pre-selected for exceptional quality, the cut, colour, and clarity of our loose diamonds are evaluated based on a standardized grading scale. Also, each loose diamond is accompanied by a grading report from either GIA or AGSL, independent diamond grading labs with the most stringent grading scales of all labs.

Our diamonds are pre-selected for quality

Diamond Jewellery

Diamond Jewellery

For exceptional quality, the diamonds set in our diamond jewellery meet strict minimum quality standards. Each diamond is colourless to near-colourless (D–I grade colour) with exceptional clarity (FL–SI grade clarity). This standard of quality applies to all our diamond jewellery — even pieces with the smallest diamonds.

Black diamond fashion jewellery is crafted using natural diamonds that have been treated to create the unique black colour with a high lustre. It is common for black diamonds to reveal minor surface imperfections without magnification.