Shreeji Diamonds

The Complete Guide to Diamond Shapes

The Complete Diamond Shape Guide | Shreeji Diamond
Shreeji Diamond — Shape Guide

The Complete Guide to
Diamond Shapes

Every diamond shape tells its own story. From the timeless Round to the architectural Asscher — discover all 14 shapes we offer and find the one that speaks to you.

By Shreeji Diamond 14 Shapes Covered Complete Guide
14
Shapes Offered
GIA
Certified
Both
Natural & Lab Grown
30+
Years Experience
24/7
Bangkok Support

A diamond’s shape is the first thing you see and the last thing you forget. It defines the silhouette of a ring, the personality of a piece, and the statement it makes. At Shreeji Diamond, we manufacture and supply 14 distinct shapes — from the world’s most popular Round Brilliant to the sleek geometry of a Baguette — each available in both natural and lab grown, certified and ready to ship.

Every Diamond Shape, Explained

02
Brilliant Cut
Modern Royalty
Princess

A square brilliant cut with sharp, unclipped corners. The Princess delivers exceptional brilliance in a contemporary silhouette — bold, architectural, and instantly recognisable. The second most popular shape in the world and a perennial favourite for solitaire engagement rings.

Cut Type
Brilliant
Shape
Square
Brilliance
Very High
03
Brilliant Cut
Elongated Elegance
Oval

The Oval combines the brilliance of a Round with a flattering elongated outline that creates the illusion of greater size — and visually lengthens the finger. One of the fastest-growing shapes of the past decade, beloved by designers and wearers alike.

Cut Type
Brilliant
Effect
Elongates finger
Brilliance
Very High
04
Brilliant / Modified
Romantic & Vintage
Cushion

A square or slightly rectangular shape with softly rounded corners — like a pillow. Known for exceptional fire and a warm, romantic character that evokes antique jewellery. The Cushion was the dominant cut for centuries before the Round emerged.

Shape
Sq. / Rect.
Style
Vintage Appeal
Fire
Very High
05
Brilliant / Modified
The Modern Cushion
Cushion Elongated

The Cushion Elongated takes everything beloved about the classic Cushion and stretches it into a rectangular outline. It delivers the same soft-cornered romance but with a more contemporary silhouette that flatters the hand and pairs beautifully with east-west and bezel settings.

Shape
Rectangular
Corners
Rounded
Trend
Rising Fast
06
Step Cut
Hall of Mirrors
Emerald

The Emerald cut is a rectangular step-cut with clipped corners and long, parallel facets arranged in descending steps. Rather than returning light as sparkle, it creates a dramatic hall-of-mirrors effect — slow, sweeping flashes of light and dark that feel deeply sophisticated. Uncompromising clarity is essential; this cut hides nothing.

Cut Type
Step Cut
Effect
Hall of Mirrors
Clarity
Critical
07
Step Cut
Art Deco Icon
Asscher

The Asscher is a square step-cut with deeply clipped corners forming a distinctive octagonal outline. Its concentric square facets create a mesmerising X pattern when viewed from above. Deeply associated with the Art Deco era, the Asscher is bold, geometric, and unmistakably chic.

Cut Type
Step Cut
Shape
Octagonal
Era
Art Deco
08
Mixed Cut
The Best of Both
Radiant

The Radiant is a rectangular or square shape with clipped corners and a brilliant-cut facet pattern — combining the clean lines of an Emerald with the extraordinary light return of a Round. It is the ideal choice for those who want a rectangular shape without sacrificing sparkle.

Cut Type
Mixed
Corners
Clipped
Sparkle
Very High
09
Modified Brilliant
Teardrop Elegance
Pear

The Pear, or teardrop, is a hybrid of the Round and Marquise — rounded at the base, tapering to a single point at the top. It combines brilliant faceting with an asymmetric silhouette that slims the finger and creates a distinctly graceful, feminine statement. Often worn point-up or point-down on the finger.

Cut Type
Brilliant
Points
One
Effect
Slims finger
10
Modified Brilliant
Bold & Pointed
Marquise

The Marquise — also called navette — is an elongated brilliant-cut shape with two pointed ends. Legend has it the shape was commissioned by Louis XV to mimic the smile of the Marquise de Pompadour. It maximises carat weight perception, appearing larger than its actual weight, and dramatically elongates the finger.

Cut Type
Brilliant
Points
Two
Effect
Appears Larger
11
Fancy Shape
The Symbol of Love
Heart

The Heart is the ultimate romantic gesture in diamond form. A modified brilliant cut requiring exceptional skill to achieve a perfectly symmetrical cleft and uniform lobes. Most impactful at 0.5ct and above, where the silhouette becomes clearly defined. A powerful choice for pendants, solitaires, and anniversary gifts.

Cut Type
Fancy
Min Size
0.5ct+
Meaning
Romance
12
Fancy Shape
Three Points of Fire
Trillion

The Trillion — also called Trilliant or Trillian — is a triangular brilliant cut with three equal sides and either sharp or gently curved edges. Its triangular facet arrangement creates a distinct, fiery brilliance unlike any other shape. Exceptional as a centre stone or as a matched pair flanking a solitaire.

Shape
Triangle
Sides
3 Equal
Use
Centre / Side
13
Step Cut
Linear Perfection
Baguette

The Baguette is a slim, rectangular step-cut with perfectly parallel sides and sharp, unclipped corners. Its clean, linear geometry is the backbone of classic jewellery design — used in channel-set eternity bands, Art Deco pieces, and as flanking stones in three-stone rings. Precision is everything; every inclusion is visible.

Cut Type
Step Cut
Shape
Rectangular
Primary Use
Accent / Band
14
Step Cut
Architectural Accent
Taper Baguette

The Taper Baguette shares the Baguette’s step-cut faceting but features one end slightly narrower than the other, creating a wedge or trapezoid outline. This gradual taper makes it ideal for flanking a centre stone, guiding the eye inward and framing solitaires with architectural precision. A hallmark of fine jewellery design.

Cut Type
Step Cut
Shape
Tapered
Primary Use
Side Stone

Shape Comparison at a Glance

Use this table to compare all 14 shapes across cut type, best use, and relative popularity — ideal for deciding which shape to prioritise when sourcing or buying.

# Shape Cut Type Best Known For Primary Use Popularity
01 Round Brilliant Brilliant Maximum brilliance, universal appeal Solitaire, all settings
02 Princess Brilliant Modern, square, bold corners Solitaire, channel set
03 Oval Brilliant Elongates finger, large appearance Solitaire, halo
04 Cushion Mixed Vintage fire, romantic character Solitaire, halo, pavé
05 Cushion Elongated Mixed Modern cushion, rectangular outline East-west, bezel, solitaire
06 Emerald Step Cut Hall-of-mirrors, architectural drama Solitaire, three-stone
07 Asscher Step Cut Art Deco X pattern, octagonal Solitaire, vintage settings
08 Radiant Mixed Rectangle with brilliant sparkle Solitaire, halo, three-stone
09 Pear Brilliant Teardrop silhouette, graceful Pendant, solitaire, drop earrings
10 Marquise Brilliant Two points, elongated, appears large Solitaire, east-west setting
11 Heart Fancy Romantic symbolism Pendant, solitaire, gift
12 Trillion Brilliant Triangular fire, unique geometry Centre stone, side stone pair
13 Baguette Step Cut Linear precision, classic accent Side stone, channel band, accent
14 Taper Baguette Step Cut Wedge taper, frames centre stone Flanking / side stone

“Shape is the language a diamond speaks before you know anything else about it. Choose the one that says what you want to say.”

— Shreeji Diamond · Bangkok · Natural & Lab Grown Diamond Manufacturers

Ready to Source Your
Perfect Shape?

All 14 shapes are available in natural and lab grown, GIA and IGI certified, with same-day availability in Bangkok and international shipping worldwide.

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