DCA Diamond Course Latest Update 2025-2026 Exam 60 Questions with 100% Verified Correct Answers Guaranteed A+
____ ____ is determined by proportions, symmetry, and polish - CORRECT ANSWER:
cut quality
_____ and ___ apply to weights that are approximate multiples of 0.25 carat. -
CORRECT ANSWER: grain, grainer
_____ and similar numeric terms describe the number of diamonds that equal one
carat. - CORRECT ANSWER: eights
_____ is the precision of the cut design's execution. - CORRECT ANSWER: symmetry
_____ normal impact clarity grade more than blimshes. - CORRECT ANSWER:
Inclusions
_____ relates to physical measurements (or dimensions) in millimeters, - CORRECT
ANSWER: size
______ is the combined weight of all the diamonds in an item of jewelry. - CORRECT
ANSWER: total weight
______ is the human contribution to diamond value. - CORRECT ANSWER: cut
_______ _____are assigned based on the visibility of the characteristics and how they
influence appearance and durability. - CORRECT ANSWER: clarity grades
- / 2
_______ are internal - for example, tiny crystals of other minerals. - CORRECT
ANSWER: Inclusions
_______ are the relative sizes and angles of the diamond's parts and facets. -
CORRECT ANSWER: proportions
_______ is the smoothness and luster of the diamond's surfaces. - CORRECT
ANSWER: polish
________ are surface irregularities such as scratches. - CORRECT ANSWER:
Blemishes
________was the largest gem quality diamond that has yet been discovered and
authenticated. - CORRECT ANSWER: The Cullinan Diamond
_____effect on value relates to rarity. - CORRECT ANSWER: clarity's
• In the US, diamond weight is usually rounded to the ______, or 1/100 carat. -
CORRECT ANSWER: nearest point
1/4 carat is recorded as _____ - CORRECT ANSWER: 0.25 carat
A ____ is a mineral created by nature - CORRECT ANSWER: diamond
A diamond is almost pure ____, and the arrangement of atoms within the diamond is
almost perfectly ______. - CORRECT ANSWER: carbon, symmetrical
but the largest polished diamond of all is - CORRECT ANSWER: the Golden Jubilee
- / 2