What is brilliant cut diamond GIA?
A round brilliant cut diamond has 57 or 58 facets, the 58th being a tiny flat facet at the bottom of the pavilion that’s known as the culet. The large, flat facet on the top is the table. The proportions of a diamond refer to the relationships between table size, crown angle and pavilion depth.
What does excellent cut mean on a diamond?
Excellent cut diamonds have an even clear pattern of bright and dark areas and provide the highest level of fire and brilliance because almost all of the incoming light is reflected through the table. Very Good cut diamonds are quite similar to Excellent cut diamonds.
Are excellent cut diamonds worth it?
Simply put, the GIA “Excellent” or AGS “Ideal” cut grades will suffice for most buyers. Judging a diamond’s performance beyond that requires some expertise and a good eye. There’s no big difference in performance between these two diamonds, but one costs $1,110 more than the other.
Is excellent cut better than very good?
Excellent Cut Diamonds provide the highest level of fire and brilliance. Because almost all of the incoming light is reflected through the table, the diamond radiates with magnificent sparkle. Very Good Cut Diamonds offer exceptional brilliance and fire.
Is excellent cut better than ideal?
When it comes to determining the highest grade possible, GIA uses the term “excellent” while AGS (the inventory of the cut grade) uses the word “ideal.” These cuts are well proportioned with optimal facet angles, allowing the brilliance and fire to pass through the table for all to see.
What kind of grade does a diamond get from Gia?
Each lab has their own way of assessing how well a diamond is cut. GIA uses a 5 grade hierarchy for cut: Excellent, Very Good, Good, Fair and Poor. A GIA report can list overall cut grade as Excellent with either or both polish and symmetry grades being at least Very Good.
What do you need to know about a GIA cut grade?
A GIA cut grade evaluates: How the diamond appears when viewed face-up based on the attributes of brightness, fire and scintillation How well the diamond was designed to ensure durability and optimal weight The quality of the workmanship or craftsmanship that went into aligning and polishing the diamond’s facets
Which is the best cut grade for a diamond?
GIA uses a 5 grade hierarchy for cut: Excellent, Very Good, Good, Fair and Poor. A GIA report can list overall cut grade as Excellent with either or both polish and symmetry grades being at least Very Good. GIA’s approach to diamond cut grade is a proportion-based quality system for round brilliant colorless diamonds.
What was the purpose of the GIA diamond?
GIA’s aim was to understand the factors that contribute to a round brilliant’s appearance and to determine which of those factors – or combination of factors – produce diamonds that people consider attractive. GIA’s research included the use of advanced computer modeling to analyze tens of thousands of possible proportion combinations.