Welcome: Lumimetric Technology Co., Ltd.
Chinese   English 

Laser Diamond Cutting

  • 1.How did they cut diamonds before lasers?
1.How did they cut diamonds before lasers?

How did they cut diamonds before lasers?/ How were diamond cut before lasers?

Before the advent of laser technology, Diamond Cutting was a labor-intensive craft. Diamond cutters relied on other diamonds to meticulously shape the gemstone, a process that demanded exceptional skill and often led to considerable diamond wastage. This article delves into the traditional steps involved in diamond cutting.


Traditional Diamond Cutting Steps:


Planning and Cleaving:

Assessing the Rough Diamond: The process commences with an evaluation of the rough diamond's shape and inclusions. The cutter strategically plans the cuts to optimize yield and minimize waste, employing tools like a laser saw or cleaving instruments.



Round Shape Formation:

For round brilliant-cut diamonds, bruting is crucial. The diamond is positioned on a rotating lathe, while a second diamond, known as the bruting wheel, grinds a groove around the diamond's girdle to achieve a round shape, ensuring symmetry.



Precision in Facet Placement:

Diamond cutters utilize a rotating cast-iron wheel embedded with diamond dust to grind and sculpt the diamond's facets. The number and arrangement of facets are determined by the desired cut, be it a brilliant cut, princess cut, or emerald cut.

Table Facet, Main Crown Facets, Pavilion Facets, Girdle Facets, Final Facets: Each step meticulously crafts different facets, culminating in a completed design.



Elevating Brilliance:

 Post facet cutting, the diamond undergoes a careful polishing process to eliminate any surface imperfections or scratches, enhancing its brilliance and clarity.

Quality Assessment:

Comprehensive Evaluation: The finished diamond undergoes scrutiny for factors like symmetry, proportion, and the absence of defects. The cutter ensures compliance with industry standards and desired cut specifications.

Final Inspection:

Thorough Examination: A final inspection meticulously checks for any remaining imperfections, ensuring the diamond aligns with the desired cut and quality standards.


Grading and Certification: In some cases, the diamond is sent to a gemological laboratory for thorough grading and certification. The certificate furnishes essential information about the diamond's cut, color, clarity, and carat weight.

Final Preparations:


Laser Inscriptions: Certain diamonds receive laser inscriptions on the girdle, which may include a certificate number or other identifying marks.

Lumimetric has provided light sources and technical support to many users in the field of laser cut diamonds, and today has compiled a list of the more common questions about laser gemstone cutting.

1. How did they cut diamonds before lasers?/How were diamond cut before lasers?

2. Challenge in Diamond cutting and sawing

3. What are the advantages of laser cutting compared with traditional diamond cutting?

4. How Laser Technology Refines 10 Classic Diamond Cuts?

Related Products:

1st Generation CW DPSS laser

2nd Generation CW Dpss Laser G2-A

QCW DPSS laser