Diamond Education Master Guide
Diamond Education
A clear and practical guide to choosing a natural diamond—from the 4Cs and diamond shapes to grading reports, proportions and engagement ring considerations.
New to Diamonds? Start Here.
Learn the fundamentals in four clear steps before comparing individual diamonds.
Understand the 4Cs
Learn how cut, color, clarity and carat describe diamond quality.
Choose a Shape
Compare sparkle, outline, proportions and apparent size.
Read the Report
Check measurements, grades, proportions and identifying details.
Compare in Person
Evaluate beauty and personality beyond the numbers on paper.
Master the 4Cs
Each factor matters differently. Open a guide to understand what affects beauty, rarity and price.
Diamond Cut Guide
Discover how proportions, symmetry and polish influence brilliance, fire and scintillation.
Diamond Color Guide
Understand the GIA D-to-Z color scale and how metal choice affects visible color.
Diamond Clarity Guide
Learn how inclusions are graded and why an eye-clean diamond can offer excellent beauty.
Diamond Carat Guide
Compare carat weight with millimeter dimensions, proportions and visible face-up size.
Diamond Shapes Guide
Compare ten popular natural diamond shapes, including Round, Oval, Cushion, Emerald, Radiant, Pear, Princess, Marquise, Asscher and Heart.
Explore Individual Diamond Cuts
Select a shape to learn about ideal proportions, visual character, settings and buying considerations.
Round Cut Diamond
Maximum brilliance and timeless versatility.
ElongatedOval Cut Diamond
An elegant outline with strong face-up presence.
Soft & RomanticCushion Cut Diamond
Rounded corners with a vintage-inspired personality.
Step CutEmerald Cut Diamond
Refined flashes and an architectural appearance.
Modern BrillianceRadiant Cut Diamond
A structured outline with lively brilliant facets.
GracefulPear Cut Diamond
A distinctive teardrop silhouette with elegant movement.
GeometricPrincess Cut Diamond
A square outline with energetic brilliant-style sparkle.
Dramatic LengthMarquise Cut Diamond
An elongated shape designed for striking visual spread.
Art DecoAsscher Cut Diamond
A square step cut with mesmerizing depth and symmetry.
SymbolicHeart Cut Diamond
A romantic shape requiring precise symmetry and outline.
Lab Grown vs. Natural Diamond
Both are diamonds, but their origin affects rarity, price, market context, symbolism and long-term expectations.
From Knowledge to Confident Selection
Continue with practical guidance for choosing, comparing and setting a natural diamond.
Guidance From S.Diamond
Diamond grades provide useful structure, but beauty is best evaluated by comparing actual stones. Our specialists can help you assess visual performance, proportions, documentation and setting compatibility at CentralWorld Bangkok.
See Natural Diamonds Beyond the Certificate
Visit S.Diamond at CentralWorld, 1st Floor, Jewelry Zone, Bangkok, to compare natural diamonds and receive personalized guidance.
