DHC International Gem Lab & Institute

What DHC International Gem Lab & Institute does

DHC International Gem Lab & Institute is an India-headquartered, privately-held gem testing laboratory and gemology education provider founded in 2006 in Thrissur, Kerala. The company operates two interconnected business lines. The Laboratory Services division performs diamond grading, gemstone identification, gemstone treatment detection, origin identification, and jewelry quality analysis using sophisticated instruments calibrated to CIBJO (International Confederation of Jewelry, Silverware, Diamonds, Pearls and Stones) international standards, with CIBJO master diamonds used for comparison. The Education Services division delivers gemology and diamond grading courses — most notably a 40-day (120-hour) Diploma in Diamond Grading and a 10-day (40-hour) Diamond Professional Course — via in-person instruction at branch locations and through an online portal (education.dhcinternational.com). DHC also offers custom-made staff training programs for jewelry organizations, a digital Report Verification Service for certificate authentication, and gemstone identification services for the Government of India Customs Department.

DHC's technology stack is anchored by physical gemological instruments and a digital certificate archive rather than software platforms; the company has not disclosed any AI, ML, or automated grading capabilities. The business generates revenue through one-time fees for laboratory services, tuition for diploma and professional courses, and professional services fees for custom training programs. Pricing is not publicly disclosed and is obtained via direct contact. DHC serves four primary customer segments: jewelry industry professionals (gemologists, diamond dealers, appraisers, retailers), general consumers seeking gemstone verification, the Government of India Customs Department for import/export identification, and jewelry organizations seeking staff training. The company markets through its website, education portal, an online certificate search portal, and direct customer inquiries.

The go-to-market is a direct, branch-led model with 11 physical locations: 9 across India (Thrissur, Chennai, Mumbai, Surat, Hyderabad, Ludhiana, Kozhikode, Coimbatore, Bengaluru) and 2 international offices in Dubai (UAE) and Sydney (Australia). Coverage spans South, West, and North India plus the Middle East and Oceania, with operations described as international standard and valid worldwide. The company is independent, founder-operated, with no disclosed parent company, no venture capital or private equity backing, and no funding rounds in the source material.

Name

DHC International Gem Lab & Institute

Legal name

DHC International

Website

https://dhcinternational.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

DHC International Gem Lab & Institute is a privately-held Indian gem testing laboratory and gemology training provider, offering CIBJO-standard diamond grading, gemstone identification, and professional diploma courses across 11 locations in India, UAE, and Australia.

Ownership category

akta.pro rank

Product category

Gemological Laboratory Services

NAICS

Testing Laboratories and Services (54138)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Rough Diamond Trading & Brokerage (CRAKAJAC)

akta.pro secondary industry

Colored Gemstone Identification & Certification Laboratories (CRAKAJAH)

Keywords

• Diamond grading services
• Gemstone certification
• Gemology education
• Diamond testing laboratory
• Jewelry quality analysis

Headquarters

HQ city

Thrissur

HQ country

India

HQ region

Asia

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Laboratory Services: Diamond grading, gemstone identification, certification, and jewelry quality analysis services provided to customers seeking verification and authentication of diamonds and gemstones
2. Education Courses: Gemology and diamond grading courses including diploma programs and professional certifications for individuals seeking careers in the jewelry industry
3. Custom Training Programs: Custom-made staff training programs and gemological training services for jewelry professionals and organizations

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

DHC International Gem Lab & Institute operates a gemological laboratory and education institute that performs diamond grading, colored gemstone identification, gemstone certification, and jewelry quality analysis, alongside gemology and diamond-grading courses. All testing and grading is conducted under CIBJO international standards using CIBJO master diamonds for comparison calibration at branches in India, the UAE, and Australia. The company also delivers professional training programs for jewelry industry professionals and supports the Government of India Customs department with gemstone identification for imports and exports.

Product overview

DHC International Gem Lab & Institute operates as a unified gemology and education services company with two interconnected divisions: Laboratory Services and Education Services. The Laboratory Services division provides diamond grading, gemstone identification, jewelry quality analysis, and report verification using international standard equipment and CIBJO standards. The Education Services division offers professional courses including a Diploma in Diamond Grading (40 days/120 hours) and Diamond Professional Course (10 days/40 hours), both emphasizing practical training on the 4Cs (cut, color, clarity, carat weight) and synthetic diamond identification. The company also provides custom-made training programs for jewelry professionals and consultancy services for establishing gemological labs. A report verification service enables customers to validate certificates against the company's archived database.

Differentiator

Problem solved

Functional benefit

Products and services

• Lab Services on Diamonds Diamond testing and grading services covering diamond grading, diamond certification, analysis of diamond-studded jewelry, and diamond opinion/opinion reports, performed under CIBJO international standards. Targeted at jewelry professionals and individual consumers seeking independent diamond evaluation.
• Lab Services on Color Stones Colored gemstone identification, certification, treatment detection, and origin identification services for gemstone owners, dealers, and government customs.
• Jewelry Quality Analysis Quality analysis of diamond-studded jewelry with sealed report facilities, supporting jewelry businesses and consumers who require documented quality verification of finished pieces.
• Report Verification Service Authentication service that instantly matches paper reports issued by DHC against entries in the company's digital archive, enabling customers and trade partners to verify the authenticity of a certificate.
• Diploma in Diamond Grading 40-day (120 hours) diploma program covering diamond grading methodologies, 4Cs (cut, color, clarity, carat weight) evaluation, microscopic examination, and natural versus synthetic diamond identification, aimed at individuals pursuing careers in diamond grading and the jewelry trade.
• Diamond Professional Course 10-day (40 hours) short course covering diamond formation, 4Cs assessment, grading techniques, and natural versus synthetic diamond identification, targeting career advancement for professionals in the diamond industry.
• Custom Staff Training and Gemological Lab Consultancy Bespoke gemological training programs delivered to jewelry businesses and organizations for their staff, plus consultancy services to support organizations in setting up their own gemological laboratories.

Quantifiable outcome

• 100% practical courses with individual attention for all students
• +1 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• HRD Antwerp: HRD Antwerp is a leading European diamond certification laboratory that follows international grading standards and offers educational programs. Both HRD and DHC provide third-party diamond grading reports, colored stone services, and gemology training, addressing the same buyer needs of trade and retail assurance.
• International Gemological Institute (IGI): IGI operates one of the largest global networks of gem labs and also runs training programs, with a strong presence in India. Both IGI and DHC provide diamond grading, gemstone identification, and gemology education to jewelry professionals and consumers, with overlapping customer segments in the Indian market.
• Gemological Institute of India (GII): GII is an Indian gemological laboratory providing diamond grading and colored stone identification services. GII is a direct domestic competitor to DHC inside India, addressing the same Indian jewelry trade, government customs, and consumer certification demands.
• European Gemological Laboratory (EGL): EGL is a network of gem labs focused on diamond and colored stone grading and certification. DHC and EGL occupy the same niche of providing third-party gem identification and grading reports to the trade and consumers, though with different geographic footprints.
• Asian Institute of Gemological Sciences (AIGS): AIGS in Bangkok runs both a gemological laboratory and gemology education programs across Asia. Like DHC, AIGS combines laboratory testing (diamond and colored stones) with structured gemology courses serving jewelry professionals and consumers in regional Asian markets.

Broad incumbents

• Gemological Institute of America (GIA): GIA is the world's largest and most recognized gemological laboratory and education institute. DHC offers the same core services (diamond grading, colored stone identification, gemology education) but operates at a regional scale, whereas GIA is the global benchmark for certificate credibility.
• Gübelin Gem Lab: Gübelin is a prestigious Swiss gem lab recognized for high-end colored gemstone and origin determination services. While DHC's portfolio includes colored stone identification and origin determination, Gübelin operates at the luxury/premium tier and shares the same core service of authoritative gemstone certification.

Regional players

• National Gem Testing Center (NGTC) China: NGTC is China's state-affiliated gem testing center providing diamond grading, gemstone identification, and education. It serves the same functions as DHC (laboratory certification plus training) but operates primarily in mainland China rather than India.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/2a6882d0fece40c
• Facebookfacebook.com/dhcinternational.in
• LinkedInlinkedin.com/company/dhc-international-gem-testing-lab-and-diamond-institute

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DHC International Gem Lab & Institute