Press Release enclosed

July 23, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G Dalal Street, Fort, Bandra Kurla Complex Mumbai - 400 001 Bandra (East), Mumbai - 400 051 BSE Scrip Code: 544311 NSE Symbol: IGIL Subject: Press Release on Unaudited Standalone and Consolidated Financial Results for quarter ended June 30, 2026 Dear Sir/Madam, Pursuant to Regulation 30 read with Part A of Schedule III of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, we are enclosing herewith the Press Release on the Unaudited Standalone and Consolidated Financial Results for the quarter ended June 30, 2026. The aforesaid information will be made available on the Company's website at www.igi.org. This is for your information and record. Thanking you, Yours faithfully, For International Gemological Institute Limited Nitika Dalmia Company Secretary and Compliance Officer Encl: a/a International Gemological Institute (IGI) delivers strong performance with 23% Revenue & 29% EBITDA growth YoY in Q1 FY27 PRESS RELEASE: Mumbai, July 23, 2026 International Gemological Institute Limited (IGI), one of the world’s largest independent grading and accreditation services providers, reported strong performance for the quarter ended June 2026. The company has reported 23% growth in revenues and 29% growth in EBITDA for the quarter, driven by strong growth momentum across all its key business segments, viz, loose stones, jewelry and colored gemstone certification. Consolidated revenue from operations for the quarter was reported at INR 3,708 Mn and EBITDA at INR 2,238 Mn. The EBITDA Margins in Q1 FY27 stood at 60% (+270 bps) as compared to 58% in Q1 FY26. PAT for the period was reported at INR 1,657 Mn, a growth of 31% on a year-on-year basis. PAT Margins stood at 45% (+260 bps) for the quarter. Key financial highlights – IGI Consolidated (INR Mn): Particulars Q1 FY27 Q1 FY26 YoY Growth % Revenue 3,708 3,009 23% EBITDA 2,238 1,735 29% PBT 2,228 1,750 27% PAT 1,657 1,265 31% Commenting on results, Mr. Tehmasp Printer, Managing Director and CEO of IGI said, "IGI has commenced FY27 from a position of strength, with Q1 consolidated revenue up 23% and PAT up 31% year-on-year, with broad-based momentum across Lab Grown Diamond (LGD) loose stones, LGD jewelry and coloured gemstones. The natural diamond segment remains a key strategic pillar, and we continue to pursue market share through new customer acquisition and deeper engagement with existing clients. Investments in our US business are gaining traction, and we commenced operations in Italy as we continue to evaluate opportunities for geographic expansion. In parallel, we are investing in the IGI brand, in our teams, and in artificial intelligence and automation to enhance service quality and turnaround times. These investments position the Company to scale efficiently, and we remain confident of sustaining this momentum through the year.” Industry Trends and Strategic Outlook The global diamond and jewelry industry is undergoing a transformation driven by evolving consumer preferences, technological advancements, and increasing demand for certification. Rising disposable incomes in India, an expanding middle-class, and the growing appeal of diamonds as a luxury investment continue to fuel market expansion. A significant trend shaping the global industry is the rapid adoption of Lab-Grown Diamonds (LGDs), which are gaining worldwide acceptance due to their affordability and sustainability. As independent certification becomes increasingly essential in ensuring authenticity and quality, IGI’s leadership in this space positions it at the forefront of this evolving landscape. Furthermore, the demand for certified diamonds, gemstones, and jewelry is expanding beyond traditional markets, reinforcing the need for transparency and trust in the industry. IGI’s multiple service delivery formats—including IGI Labs, In-factory Labs, and Mobile Labs—enhance customer relationships and provide a distinct advantage in this evolving market. By continuing to embrace innovation and expanding its global footprint, IGI is well-positioned to capitalize on emerging opportunities and reinforce its position as the preferred certification partner for the jewelry industry. About IGI The International Gemological Institute Limited (IGI), a Blackstone-backed company, is India’s largest independent accreditation and certification services provider with a 50% market share. With 36 laboratories and 21 Schools of Gemology in 10 countries, IGI's global presence enables it to capitalize on the ongoing transformation in industry. For 50 years, IGI has provided the fine jewelry community and consumers with a broad range of services, including natural and laboratory-grown diamond reports, colored stone grading and origin reports, as well as jewelry identification and appraisal reports. With the rise of lab-grown diamonds, IGI screens millions of natural and lab-grown diamonds to ensure that the industry and consumers receive the product they expect. Regardless of location or marketplace, authentic IGI Laboratory Reports empower trust and confidence among buyers and sellers alike. Media Contact: Investor Relations Contact: IGI India - Brand Manager - Marketing IGI India – Head, Investor Relations & Public Relations Yashita Tawde Ms. Natasha Kedia media.relations@igi.org investor.relations@igi.org +91 98925 34180 022-40352550 Public Relations: MUFG Intime Nikunj Seth Belinda Dokras – Director Belinda.Dokras@dentsu.com nikunj.seth@in.mpms.mufg.com +91 98202 84220 +91 9773397958