Your Exclusive SDJW Visitor Gift

Master Gems & Jewellery

Complimentary access to two of JDMIS' most popular masterclasses — 90 minutes of expert insight, broken into bite-sized 1–5 minute micro-learning segments you can enjoy anytime.

Coloured Gemstones

Diamonds

Jewellery Design

Jewellery Fabrication

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Why These Two Masterclasses?

Gems and jewellery reward those who know what they're looking at. One masterclass reveals how professionals judge a gemstone's true value; the other shows how a fine piece is designed and made. Together, they sharpen the eye you bring to every future purchase, collection, or creation.

Choose one, or take both — instantly, free, no code required.

What You'll Gain

See Value Like a Professional — Understand the colour, clarity, cut, and rarity factors that separate an ordinary stone from an exceptional one.

Understand How Fine Jewellery Is Made — Follow a piece from first sketch to finished metal, and appreciate the craft behind every design.

Buy and Collect with Confidence — Recognise quality, ask the right questions, and make better-informed decisions for a lifetime.

Your Instructors

Learn From Industry Pros

Tanja M. Sadow G.J.G.

Award-Winning Gemmologist & JDMIS Founder

With more than 50 years in the gem and jewellery industry, Tanja has trained specialists for world-leading brands including Cartier, Louis Vuitton, Hermès, and Sotheby's. As Dean and founder of JDMIS, she is known for making specialist expertise clear, practical, and genuinely engaging.

Alex Zupancich

Jewellery Design & CAD/CAM Specialist

Alex has been training designers and business owners across the region in 3D jewellery design and manufacturing since 2008, building the CAD/CAM skills of hundreds of jewellery professionals. He holds degrees from Duke University and INSEAD.

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Open to every SDJW visitor — choose your masterclass access below.

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Two masterclasses. One complimentary pass for SDJW visitors. Claim yours in under a minute.

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