This tutorial aims to explain what yaw is, why it occurs, how it occurs, how to detect it, and how it affects the appearance of a diamond. I will also try to clear up the confusion regarding this topic in relation to the terms yaw, twist, distortion, and azimuth shift. What is Facet Yaw? Facet yaw, a term coined by Brian Gavin, is a type of facet distortion that can occur … [Read more...]
Can a diamond with excellent proportions receive a GIA very good cut grade?
Here are the specs of a very interesting diamond: ROUND BRILLIANT Measurements 6.70 - 6.73 x 4.17 mm Carat Weight 1.16 carat Color Grade J Clarity Grade SI1 Cut Grade Very Good PROPORTIONS Depth 62.1 % Table 57 % Crown Angle 34.5° Crown Height 14.5% Pavilion Angle 41.0° Pavilion Depth 43.0% Star Length 55% Lower Half 80% Girdle Medium to Slightly Thick, Faceted, 4.5% Culet … [Read more...]
Hearts and Arrows Formation
Understanding hearts and arrows formation allows you to have a better appreciation of the cutting precision that is required to form it. I will take you through exactly which facets are responsible for which part of the pattern. If you are seeking an H&A for its perfection, then it this is important for you to be able to analyse the H&A images to determine in detail the … [Read more...]
The True Value and Cost of Diamond
The aim of this tutorial is to teach you more about the product that you are spending so much time learning about rather than simply teaching you how to select the perfect one. I also think it will be a nice break away from the technical topics. Let me show you how diamonds are created in nature and how they're mined. On the way, you will discover why diamonds are so special, … [Read more...]
The Art of Diamond Cutting
You may be wondering, what's the point of this tutorial? After all, we are diamond prosumers not diamond cutters. Well, not only does learning a bit about the process of diamond cutting allow you to appreciate the value of your diamond more, it can also help you understand the cutter’s thinking process so you can better understand their decisions. This helps us make better … [Read more...]