So how does a raw diamond transform from rough to polished? How does the diamond cutting process affect its value, price, and beauty? And how can you choose a perfectly cut stone?

This blog explains the complete Raw Diamond cutting process and serves as your full guide to diamond manufacturing.

Your key takeaways will be:

• ❖ Understand every step involved in transforming a raw diamond
• ❖ Learn the key checkpoints at each stage of diamond cutting
• ❖ Discover how the cut affects the final price of a diamond

Step 1: Planning the Raw Diamond

Planning is the most critical stage in Raw Diamond processing. Every step that follows depends on the decisions made here. If experts make a mistake during planning, they cannot correct it later.

• ❖ Decide the final shape (round, oval, princess, radiant, etc.)
• ❖ Maximize value retention from the stone
• ❖ Minimize material loss during cutting

Raw Diamond Planning Process

Experts examine the stone manually and with advanced software. An experienced cutter studies inclusions, crystal direction, and color distribution before selecting the best possible shape.

Modern technology such as Sarine scanning systems creates accurate 3D models to optimize proportions and symmetry.

Step 2: Marking the Stone

After planning, specialists mark the diamond to guide the cutting stage. Precise marking protects clarity and maximizes final value.

Process

Using magnification tools, experts draw guidelines to avoid inclusions. Even a minor error can affect grading results.

Step 3: Cutting the Raw Diamond (Cleaving & Sawing)

This stage physically separates the raw diamond into workable pieces. Experts either cleave along natural planes or use high-speed laser sawing machines.

Step 4: Bruting – Shaping the Diamond

Bruting refines the outline and creates symmetry. Experts shape the stone by rubbing diamonds together or using diamond-coated disks.

Step 5: Polishing and Faceting

Polishing gives brilliance to the diamond. This stage forms the facets that reflect and refract light.

• ❖ Blocking – forming the main facets
• ❖ Brillianteering – adding remaining facets

Final Inspection & Certification

After polishing, experts inspect cut, symmetry, and proportions before sending the diamond for grading.

Leading laboratories such as
Gemological Institute of America (GIA)
provide independent grading reports.

How the Raw Diamond Cut Affects Price

The quality of the cut directly impacts brilliance, grading, and market value. Proper processing transforms a Raw Diamond into a high-value gemstone.

Hari Krishna Exports – Expertise in Raw Diamond Processing

With over 30 years of expertise, Hari Krishna Exports transforms natural stones into exceptional diamonds using advanced technology.

Read more about our Journey of Excellence or explore certified diamonds on hk.co.