When purchasing a diamond from Diamond Advisor you can trust the price you are given for the quality you choose, as each diamond over 0.30ct comes with a GIA certification document.

The Gemological Institute of America (GIA) issue the greatest amount of gem reports and is considered to be the most trustworthy and globally recognised in the industry. Retailers that offer GIA certified diamonds offer peace of mind, as each diamond is laser inscribed with the certificate number, an identification number of a diamond (Or gemstones in some cases). The certificate informs the customer on all the information correlating to diamond they are purchasing. The market also offers alternative certificates or in some cases diamonds without certificates, contributing to huge price variances. 


Fluorescence refers to a diamond’s tendency to emit a soft colored glow when subjected to ultraviolet light (such as a “black light”). Roughly 30% of diamonds fluoresce ‘shine’ to some degree. Colourless (D-F) fluorescent diamonds sell at up to a 15%  or more discount since the fluorescence is perceived as a defect. In fact, the visible effects of faint to Medium fluorescence are noticeable only to a gemologist using a special UV light source. Florescence in a diamond in most cases causes a milky appearance to a diamond, hence not an advisable investment.


Depending on the cut, diamond prices can vary considerably as well, with the round cut being the most sought after and popular for decades due to the optimal brilliance. The quality of the cut is directly related to the final brilliance (sparkle) of a diamond.  Fancy cut refers to all other shaped diamonds and as a general trend fancy cut diamonds retail for 20% less than round cut diamonds.  Depending on the shape selected, many fancy cut diamonds such as the marquise, oval and pear offer a greater value for money as they appear larger than a round cut diamond yet they are considerably less expensive. It’s always advisable to look for excellent cut diamonds to ensure your diamond is of the highest grade and best investment


Diamonds come in various colours like blue, pink, yellow, orange, green, brown, grey, black, purple, violet, white and the rarest being red.   Pure or colourless diamonds are exceptionally rare, as most diamonds have secondary hues or overtones. A diamond with overtones or secondary hues such as yellow or brown cannot be classified in the colourless or near-colourless range, these details are unfortunately not on any diamond certificates, it’s something that we at Diamond Advisor will check for you to ensure you are not purchasing a diamond with an secondary hues or overtones, ensuring peace of mind.