Round Cut Diamond Size Chart

Chart of diamond sizes showing the relationship between carat size, diameter, and surface area for round cut diamonds.

Diamond Color Grade Guide (With GIA Color Scale)

Diamond color directly affects price in a measurable way but isn't always as noticeable as people think.

Diamond Fluorescence: The Ultimate Guide

Diamond fluorescence isn't always a bad thing. Below we explore the relationship between diamond fluorescence and diamond color.

What To Know About Diamond Carat Size

Carat is probably the most easily discernible and defining aspect of a diamond. Here we explore and advise you on exactly what to consider when choosing the carat size that's right for you.

K Color Diamonds: Do They Look Yellow?

K color diamonds are an amazing value play but you should be sure to avoid some of the biggest and easiest mistakes when purchasing a K colored stone.

I Color Diamonds: Good or Bad?

I color diamonds (like most diamonds) may have a faint yellow hue when viewed from the side, but should generally face up white to an observer.

4 Carat Diamond Rings: The Ultimate Guide

Buying a 4 carat diamond is no small feat – the cost alone raises the stakes for every aspect of the decision making process. For example, a relatively minor tweak like stepping down a color grade from G color to H color could save you over $10,000.

J Color Diamonds: Good or Bad?

J color diamonds are a great choice for diamond buyers looking to get a larger carat size while staying in the near colorless range (grades G, H, I, and J). But, the presence of color in a diamond can be made more apparent by a number of factors that are important to consider up front.

Marquise Cut Diamond Size Chart

See the average surface area and dimensions for marquise shaped diamonds from 0.3 carats to 5 carats.