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Quizzes > Quizzes for Business > Education

Diamond Shape Identification Quiz Practice Test

Improve Diamond Shape Recognition Skills Today

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art displaying various diamond shapes for a fun identification quiz

Take the Diamond Shape Identification Quiz to test your gemology knowledge on common diamond cuts and facets. Whether you're a jewelry enthusiast or certification candidate, this shape recognition quiz challenges you with multiple-choice questions. You'll learn to distinguish marquise, cushion, pear, and more, boosting your skills for design or appraisal. Customize the quiz in our editor to focus on specific diamond profiles and difficulty levels. Explore the Diamond Knowledge Assessment and Diamond Industry Certification Quiz, and browse all quizzes for more practice.

Which diamond shape features pointed ends and curved sides?
Heart
Oval
Marquise
Pear
The marquise cut is characterized by two pointed ends and gently curved sides, creating its distinctive boat-like shape. This silhouette differentiates it from pear, oval, and heart shapes, which have only one or no pointed ends.
Which diamond shape resembles a drop of water, with one rounded end and one pointed end?
Cushion
Marquise
Pear
Oval
The pear shape has a rounded base tapering to a single point, giving it a teardrop appearance. It differs from marquise (two points), oval (no points), and cushion (rounded square) shapes.
Which diamond cut is square with four beveled (pointed) corners?
Radiant
Princess
Emerald
Asscher
The princess cut is known for its square outline and sharply pointed corners, giving it a distinct geometric look. Emerald and Asscher cuts have step facets and truncated corners, while radiant has trimmed, not pointed, corners.
Which diamond shape has a rectangular outline with truncated (cut) corners?
Cushion
Radiant
Emerald
Princess
The radiant cut features a rectangular or square outline with truncated corners, combining step and brilliant facets. Emerald cut also has step facets but no brilliant facet pattern, and princess has pointed corners.
Which diamond shape is the most brilliant and features 58 facets with a circular outline?
Round Brilliant
Cushion
Oval
Princess
The round brilliant cut is engineered with 58 facets to maximize light return and brilliance within a circular outline. Other shapes may be brilliant but do not match the round cut's specific facet arrangement and optimization.
Which cut is known for its 'hall of mirrors' effect due to its step facets and high crown?
Princess
Emerald
Radiant
Asscher
The Asscher cut's deep step facets and high crown produce a dramatic hall-of-mirrors appearance. While emerald cuts also use step facets, they lack Asscher's cropped corners and square pavilion which intensify the mirror effect.
A heart-shaped diamond is a modified version of which basic cut?
Marquise
Princess
Oval
Round Brilliant
The heart shape is a modified round brilliant cut, retaining brilliant-style faceting but with a split top forming its lobed heart silhouette. It is not derived directly from princess, marquise, or oval cuts.
Which diamond shape maximizes perceived size per carat with its elongated, narrow form?
Princess
Emerald
Marquise
Oval
The marquise cut's length-to-width ratio creates an impression of greater size for its carat weight, as its elongated form occupies more surface area. Oval also increases spread but marquise is most extreme in perceived size.
The radiant cut combines the faceting styles of which two cuts?
Princess and Cushion
Emerald and Brilliant
Marquise and Oval
Step and Baguette
The radiant cut merges emerald-cut's outline and trimmed corners with brilliant-style faceting on both crown and pavilion. This hybrid approach differentiates it from purely step- or baguette-based designs.
What is the typical ideal length-to-width ratio for a pear-shaped diamond to appear well balanced?
1.50 - 1.75
1.25 - 1.50
1.00 - 1.25
2.00 - 2.25
A pear shape with a length-to-width ratio between 1.50 and 1.75 is generally considered balanced, with a pleasing elongation and fullness. Ratios outside this range can look either squat or overly slender.
In a marquise cut, what is the most critical aspect for achieving symmetry?
Number of crown facets
Depth percentage
Size of the table facet
Alignment of the two points on the ends
Ensuring the two pointed ends of a marquise cut are perfectly aligned is essential to symmetry and visual balance. While table size and depth are important for light performance, point alignment directly affects silhouette symmetry.
Which shape most commonly exhibits a 'bow-tie' effect when proportions are off?
Princess
Marquise
Cushion
Round Brilliant
The marquise shape is prone to a bow-tie effect - dark areas across the center - if its length-to-width ratio or pavilion and crown angles are not properly balanced. Round brilliants and princess cuts do not typically show this phenomenon.
To minimize the visibility of inclusions, which cut is generally preferred?
Emerald
Round Brilliant
Asscher
Radiant
The round brilliant cut's many facets and angles help mask inclusions by scattering light throughout the stone. Step cuts like emerald or Asscher tend to make inclusions more noticeable due to their broad, open facets.
Which diamond shape is recognized for its rounded corners and larger open facets that resemble a pillow?
Princess
Emerald
Cushion
Oval
The cushion cut features a square or rectangular outline with softly rounded corners and larger facets that create a pillow-like appearance. This distinguishes it from the sharp-cornered princess and the step-faceted emerald.
Which facet characteristic helps distinguish a radiant cut from a princess cut under magnification?
No crown facets
Step facets only
Pointed corners and brilliant-only facets
Truncated corners and mixed brilliant-step facets
Radiant cuts have cropped (truncated) corners and feature a combination of brilliant and step facets, giving a distinct mixed pattern. Princess cuts have pointed corners and only brilliant-style faceting.
A heart-shaped diamond shows one lobe slightly larger than the other. Which symmetry grade would most directly describe this issue?
Girdle symmetry
Lobe symmetry
Pavilion symmetry
Table symmetry
Lobe symmetry refers to the evenness of the two curved halves (lobes) of a heart shape. If one lobe is larger, it indicates a flaw in the lobe symmetry grading.
A pear-shaped diamond exhibits a prominent dark band across its center when viewed face-up. What optical phenomenon is causing this?
Bow-tie effect
Windowing
Banding
Color zoning
The bow-tie effect appears as a dark band across elongated fancy shapes like pear when facet angles do not correctly reflect light. This is distinct from banding or windowing, which are other light performance issues.
For a marquise cut, which girdle thickness is recommended to balance durability at the points and light performance?
Extremely thick
Feathered
Very thin
Medium to slightly thick
A medium to slightly thick girdle provides protection against chipping at the sharp ends of a marquise while maintaining its overall light performance. A very thin girdle risks damage, and an extremely thick girdle may reduce brilliance.
Of the following shapes, which is most forgiving of small deviations in cut symmetry and proportions?
Round Brilliant
Asscher
Marquise
Emerald
The round brilliant is highly symmetrical and tolerates minor variances without significant impact on brilliance. Step cuts like emerald or Asscher and elongated shapes like marquise show imperfections more readily.
A diamond has a pavilion angle of approximately 38° and displays long, step-like facet reflections. Which shape does this most likely indicate?
Radiant
Emerald
Princess
Round Brilliant
Emerald cuts feature pavilion angles around 38° and long, rectangular facets producing step reflections. Princess, radiant, and round brilliant cuts use different facet schemes and angles.
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Learning Outcomes

  1. Identify common diamond cut shapes from multiple-choice questions
  2. Distinguish between marquise, pear, radiant, and other silhouettes
  3. Analyse facet patterns to assess diamond proportions and symmetry
  4. Apply recognition strategies to real-world gemology scenarios
  5. Evaluate your answers to track improvement in shape identification
  6. Master visual cues of diamond cuts for confident appraisal

Cheat Sheet

  1. Anatomy of a Diamond - Get up close and personal with the table, crown, girdle, and pavilion to see how each part impacts sparkle and fire. Understanding these sections is the secret sauce to judging cut quality and overall brilliance. Dive deeper at info-diamond.com.
  2. Diamond Shapes 101 - Learn to spot the ten most popular diamond shapes - from the classic round brilliant to the chic Asscher - and discover each cut's unique personality. Knowing shape characteristics will help you match the perfect style to any wearer's taste. Explore more at tiffany.com.
  3. Facet Patterns Explained - Dive into the world of facets and see how geometry turns light into dazzling sparkle. For example, the round brilliant cut's 58 facets are strategically placed to maximize brilliance and fire. See the details on en.wikipedia.org.
  4. Pear-Shaped Perfection - Discover how the pear shape merges the round and marquise cuts into a timeless teardrop that can visually lengthen fingers. Its graceful silhouette brings a touch of elegance to any jewelry piece. Learn more at 4cs.gia.edu.
  5. Princess Cut Power - Meet the princess cut: a square or rectangular wonder with a modern inverted pyramid profile that dazzles with edgy brilliance. It's a fashionable twist on tradition that's perfect for trendsetters. Find out why at en.wikipedia.org.
  6. Emerald Cut Elegance - Step into sophistication with the emerald cut's long, clean lines and hall-of-mirrors effect that emphasizes clarity over sparkle. Its large, open table invites you to admire every internal detail. Get the scoop on tiffany.com.
  7. Marquise Magic - See how the marquise cut's elongated shape and pointed ends maximize carat weight and create the illusion of a larger stone. This playful design is perfect for adding drama and length to any ring. Discover more at tiffany.com.
  8. Oval Cut Appeal - Combine round brilliance with an elegant oval outline for a flattering, finger-elongating effect. The oval cut sparkles brilliantly while offering a fresh alternative to the classic round. Learn all about it at tiffany.com.
  9. Symmetry & Proportions - Unlock the magic of perfect symmetry and ideal proportions to see why some diamonds pop more than others. Balanced angles and uniform facets turn good cuts into show-stopping masterpieces. Read up on the science at gemsociety.org.
  10. Hands-On Diamond Appraisal - Put your newfound knowledge to the test by evaluating real diamonds, noting shape, cut quality, and facet arrangement. Practice makes perfect, and soon you'll feel confident assessing any gemstone like a pro. Start practicing at gemsociety.org.
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