HPHT Lab-Grown Rough Diamond crystal Natural Octahedral Diamond Crystal I have seen a lot of lab-grown diamonds lately, so I want to...

I am often asked to appraise pieces that have been inherited, which sometimes means running into the diamond cuts in the above graphic....

This is a photo of a natural on the girdle/pavilion of a diamond. So, what did I just say? Well, a natural is the original (or natural)...

While diamonds are the hardest natural substance on earth, if it weren't possible to break them, we wouldn't be able to cut them to...

While shape is the outward shape of the stone, the word cut is used to denote how well a diamond returns light. Remember physics class?...

Next on the list is clarity. Almost all diamonds will have some type of inclusion inside, the severity of which will determine its...

Diamonds are graded starting at D and going to Z before heading into Fancy Colors. D-F are colorless and are more rare and valuable than...

Diamonds are cut into many shapes--even more than the ten shown here-- and the shape impacts the value every time. It can also help date...