Indian Institute of Gems and Jewellery, Jaipur

The following Colleges in Delhi are offering the Jewellery design courses.
1. J. D. Institute of Fashion Technology, Hauz Khas Village, New Delhi
For admission you can apply directly through this link :-
https://institute.co/course/diploma-in-jewellery-design/
2. Indian Institute of Gems and Jewellery

The following Colleges can meet yours requirements.
1. Indian Institute of Gems & Jewellery, Delhi
2. J. D. Institute of fashion design, Delhi
3. NIFT Delhi
4. Delhi Institute of Fashion & Technology
5. International School of Design, Delhi.

Indian Institute of Gems and Jewelry Mumbai (IIGJ), an initiative of GJEPC, was established under the aegis of Ministry of Commerce & Industries in 2003. The Institute has completed 15 years of educational training and overall 5000 students have qualified from various Jewelry courses. AC class room,

The PMATi course will cost you 15000 plus tax
http://iigjdelhi.org/courses/fee_structure
here's a link for other courses and it's fees. But no certification is provided in quality control.

The duration is 120 hours for Certificate in Quality Control and Quality Assurance in Indian Institute of Gems and Jewellery, Mumbai .

Hi,
It is a full-time course in the mentioned institute. No institute provides the course on weekend or part time basis in Delhi.