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CARATS 2025 Glitters with Glamour, Grandeur, and Global Appeal

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Surat Diamond Expo, organized by Surat Diamond Association (SDA) from July 11 to 13, 2025, at the prestigious Avadh Utopia, concluded on an exceptionally high note. The event witnessed remarkable participation and enthusiasm from industry stakeholders, culminating in trade transactions surpassing INR 100 crore. This impressive milestone reaffirmed the expo’s growing stature as a premier B2B platform for diamonds in India.

Amid a challenging international market environment, the event stood out for its robust participation and vibrant energy. A total of 73 exhibitors, mainly from Surat and Mumbai, presented an extensive range of offerings, from loose polished diamonds (both natural and lab-grown) to diamond-studded jewellery and the latest in gem-cutting technology.

The event drew a global audience, with overseas visitors flying in from the USA, Russia, Ukraine, Dubai, and other regions, while domestic buyers came from key cities including Jaipur, Mumbai, Kolkata, Chandigarh, Amritsar, Delhi, Ahmedabad, Bengaluru, Thrissur, Telangana, Chennai, Hyderabad and Kochi. The expo welcomed more than 30 foreign buyers and saw footfalls cross 6500 visitors over a period of the 3 days, setting a new benchmark for B2B engagement in the sector.

The exhibition was inaugurated by the Hon’ble Mayor of Surat, Daxesh Mavani, in the esteemed presence of Chairman of Surat Diamond Bourse, Govindbhai Dholakia. Both dignitaries commended Surat’s pivotal role in the global diamond trade and lauded its immense potential to emerge as an international hub for the diamond industry. They deeply appreciated the thoughtfully designed booth, taking keen interest in the wide array of diamonds showcased.

The following two days witnessed the esteemed presence of Hon’ble Home Minister of Gujarat, Harsh Sanghavi, along with prominent diamantaires Nagjibhai Sakariya, Vice President of Surat Diamond Bourse, and Laljibhai Patel, Vice Chairman of Surat Diamond Bourse along with Ghanshyambhai Shankar, owner of Shivam Jewels and the esteemed title sponsor of the event. The quality, craftsmanship, and presentation left a lasting impression on them, and they commended the exhibitors for their dedication to excellence and innovation in the diamond industry. Their encouraging words served as a great motivation for all participants, further validating the efforts put into curating a world-class display.

Surat City Police Commissioner, Anupam Singh Gehlot, and District Collector, Dr. Sourabh Pardhi, graced the event with their esteemed presence, lending prestige and importance to the occasion. Their visit not only reflected the administration’s strong support for the diamond industry but also underscored Surat’s progressive approach to fostering collaboration between governance and trade. It highlighted a shared commitment to economic growth, ethical practices, and strengthening the city’s global standing in the diamond sector.

Also in attendance was Arvindbhai Dhanera, Director of Dhanera Diamonds India Private Limited, a distinguished and influential figure in the diamond sector. With decades of contribution to the trade, particularly in Surat and Mumbai, his presence underscored the exhibition’s credibility and its relevance to industry leaders.

The Convener of the show, Vinod Dabhi, expressed immense happiness and satisfaction over the resounding success of the event, acknowledging the overwhelming response from exhibitors, buyers, and dignitaries alike. He emphasized that the collective efforts of the team had truly borne fruit.

Co-Conveners, Chandrakant Tejani, Jayesh Patel, Damjibhai Mavani and Natubhai Jasani also shared their pride and joy, stating that the months of hard work, planning, and coordination had culminated in a highly impactful and well-received exhibition.

 Jagdish Khunt, President of SDA, Vice-President Gourav Sethi, Secretary Dhirubhai Savani, Treasurer Shantibhai Dhanani, and Joint Secretary Jasmatbhai Vaghani expressed their satisfaction with the event’s turnout and commercial success. They shared that exhibitor response was overwhelmingly positive and hinted at the possibility of expanding the event to a biannual format, driven by strong demand and industry enthusiasm.

With over 700,000 skilled artisans employed across 5,000+ units, Surat continues to reinforce its stature as the world’s foremost hub for diamond cutting and polishing. As market dynamics shift and evolve events like CARATS remain crucial in fostering trade relationships, encouraging innovation, and supporting industry resilience.

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Education

The Science Behind Sparkle: How Lab-Grown Diamonds Are Created

A New Era of Diamond Creation

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In recent years, lab-grown diamonds have captured the attention of jewellers, consumers, and investors alike. Beyond their beauty, what makes these gems truly fascinating is the science behind their creation. Unlike imitation stones, lab-grown diamonds share the same physical, chemical, and optical properties as natural diamonds — the only difference lies in their origin.

At the heart of this innovation are two cutting-edge processes: High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD). These methods recreate the intense conditions under which natural diamonds form deep within the Earth, allowing scientists to produce genuine diamonds in a controlled laboratory environment.

HPHT: Diamonds Born Under Extreme Conditions

The High Pressure High Temperature (HPHT) method mimics the natural diamond-forming process that occurs about 150 kilometers below the Earth’s surface.

  1. Starting Point – The Seed:
    A small diamond seed, usually a thin slice of an existing diamond, is placed inside a carbon-rich chamber.
  2. Simulating Nature – Pressure and Heat:
    The seed is exposed to extreme conditions — pressures of about 5–6 GPa (equivalent to the pressure at the Earth’s mantle) and temperatures of 1,400–1,600°C.
  3. Crystal Growth:
    Under these conditions, the carbon source melts and crystallizes around the diamond seed, forming a larger crystal over several weeks.

The result is a high-quality diamond crystal that is virtually indistinguishable from its natural counterpart. HPHT diamonds often exhibit exceptional clarity and can be produced in a range of sizes and colors, including colorless, yellow, and blue varieties.

CVD: Diamonds Grown in a Plasma Cloud

The Chemical Vapor Deposition (CVD) process is a more recent innovation that uses advanced plasma technology to grow diamonds atom by atom.

  1. Preparing the Chamber:
    A thin diamond seed is placed inside a vacuum chamber filled with carbon-rich gases, typically methane and hydrogen.
  2. Creating Plasma:
    The gases are energized using microwaves or lasers, forming a plasma cloud that breaks down the molecular bonds of the gases.
  3. Diamond Formation:
    Carbon atoms released from the plasma settle onto the seed layer, crystallizing into pure diamond over the course of several weeks.

The CVD method allows for greater control over purity, color, and size, making it ideal for high-end jewellery applications. It also produces diamonds that are free from many of the inclusions typically found in natural stones.

Technology Meets Sustainability

Both HPHT and CVD processes are transforming the jewellery industry not only through technology but also through sustainability. Lab-grown diamonds require no mining, dramatically reducing environmental impact. Many manufacturers are also transitioning to renewable energy sources to power their production facilities, making these diamonds even more eco-conscious.

Furthermore, traceability is a defining advantage. Every lab-grown diamond can be tracked from its creation, offering complete transparency — a growing priority among modern consumers seeking ethical luxury.

Crafting the Future of Jewellery

As consumer awareness grows, lab-grown diamonds are redefining what it means to own something precious. With their scientific precision, sustainable creation, and stunning beauty, they represent the perfect harmony between innovation and artistry.

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JewelBuzz is Asia’s First Digital Jewellery Media & India’s No.1 B2B Jewellery Magazine, published by AM Media House. Since 2016, we’ve been the trusted source for jewellery news, market trends, trade insights, exhibitions, podcasts, and brand stories, connecting jewellers, retailers, and industry professionals worldwide.

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