About Expertise AMZgemz AI Media Contact
Jewelry E-Commerce & AI Expert

Where Jewelry
Expertise Meets
AI Intelligence.

15 years. $100M+ in sales. Now building what comes next.

I've spent 15 years scaling fine jewelry brands on Amazon and global marketplaces. I've seen every algorithm change, every market shift, and what separates brands that dominate from brands that disappear. Now I'm applying AI to everything I know — and sharing what I find.

Visit AMZgemz Intelligence → Get in Touch
Sergiu Costin
Sergiu Costin
Founder, AMZgemz Intelligence · Seattle, WA
$100M+
Sales Generated
500K+
Listings Managed
20+
Brands Scaled
15 Yrs
Fine Jewelry Expertise
Global
US · UK · Israel · India · EU
The Story

Jewelry Operator.
AI Pioneer.

I started in jewelry e-commerce when selling online meant a blurry photo and a prayer. No playbooks, no agencies, no tools built for this industry. Just a deep obsession with gemstones and a conviction that the internet was about to change everything for jewelry brands.

Over 15 years I built and scaled brands across Amazon, Shopify, and six global marketplaces. I learned what Amazon's algorithm actually rewards, what makes a luxury buyer convert at 11pm, and what separates a $50K/month brand from a $1M/month brand. I generated over $100M in jewelry sales in the process.

When AI started reshaping commerce, I didn't wait to see what it would do to this industry. I went all in — testing every tool, building every workflow, and separating the genuine game-changers from the hype. The result is AMZgemz Intelligence — the world's first AI intelligence agency built exclusively for fine jewelry brands.

I'm based in Seattle, one mile from Amazon's global headquarters. That proximity is deliberate.

"I'm not a tech company that discovered jewelry. I'm a jewelry operator who mastered AI — and that distinction changes everything."

Connect on LinkedIn →
Sergiu Costin
Seattle
1 mile from Amazon HQ
What I Know

15 Years of
Expertise.

Built through operating real brands, not advising from the sidelines. Every insight comes from doing it — scaling catalogs, fighting algorithm changes, building studios, clearing counterfeits, and finding the patterns that drive revenue in fine jewelry.

💎

Amazon Intelligence

Deep expertise in Amazon's fine jewelry algorithm — keyword indexing, listing optimization, PPC architecture, brand registry, and counterfeit protection across global marketplaces.

Ranking PPC Brand Protection
🤖

AI for Jewelry Commerce

Pioneering the application of agentic AI systems to fine jewelry — listings, visuals, demand forecasting, competitor intelligence, and customer service automation trained on jewelry-specific data.

Agentic AI Automation Intelligence
📊

Marketplace Strategy

Multi-channel growth strategy across Amazon, Shopify, TikTok Shop, eBay, Etsy, and Walmart. Platform-independent brand building that reduces dependency on any single channel.

Shopify TikTok Shop Multi-channel
📈

Revenue Growth

Proven track record scaling jewelry brands from zero to millions — keyword gaps, conversion optimization, ad restructuring, and trend intelligence that moves before the market does.

Conversion Scaling Forecasting
🛡️

Brand Protection

Counterfeit detection and IP enforcement across six global marketplaces. Proprietary monitoring systems built over 15 years — because most jewelry brands have active violations they don't know about.

Counterfeits IP Rights Monitoring
🌐

Global Expansion

International marketplace strategy across US, UK, Israel, India, and Europe — navigating cultural nuances, local search behavior, and logistics to build truly global jewelry brands.

International Localization Logistics
My Company

AMZgemz
Intelligence.

Everything I've learned in 15 years — every keyword pattern, every algorithm shift, every market trend — is now inside AMZgemz Intelligence, the world's first full-stack AI agency built exclusively for fine jewelry brands.

We combine 500,000+ proprietary jewelry listings of data with cutting-edge AI — giving brands intelligence that no generic AI agency, and no traditional e-commerce agency, can match.

GemzAudit — AI-powered brand analysis, delivered in 48 hours. From $1,500.
Agentic Commerce — Amazon — Full AI intelligence stack for Amazon jewelry brands. From $5,000/month.
AI Growth Partner — Complete Shopify AI growth operation. From $15,500/month.
AI Transformation — Enterprise AI integration, legacy system modernization. From $50,000/month.
AI · Jewelry · Growth

The only AI intelligence agency built exclusively for fine jewelry. Combining 15 years of gemstone expertise with agentic AI to help brands sell smarter, scale faster, and grow beyond any single platform.

500K+
Proprietary Listings
$100M+
Sales Generated
20+
Brands Scaled
15 Yrs
Jewelry Expertise
Visit AMZgemz Intelligence →
Media & Press

The Voice of
Jewelry AI.

Available for media interviews, podcast appearances, expert commentary, and industry publications. I cover the intersection of AI, e-commerce, and fine jewelry — a space no one else occupies with this depth of operational experience.

🎙️

Podcast Appearances

Available for interviews on e-commerce, AI in retail, jewelry industry trends, and what's actually working for brands in 2026. Conversational, data-backed, and always specific.

📰

Expert Commentary

Industry publications, trade press, and mainstream media covering AI, Amazon, Shopify, and jewelry e-commerce. Available for quotes, analysis, and contributed articles.

🎤

Conference & Trade Shows

Available for panel discussions and presentations at JCK, Couture, NY Now, and e-commerce conferences. Topics: AI in jewelry, agentic commerce, and marketplace intelligence.

"15 years of jewelry expertise meets cutting-edge AI — a perspective no one else in this industry can offer."

Inquire About Media →
Get in Touch

Let's Talk
Jewelry & AI.

Whether you're a jewelry brand looking to grow, a journalist covering AI in retail, or a conference organizer — I'd like to hear from you.

→ sergiu@amzgemz.com
→ linkedin.com/in/sergiu-costin
→ 1700 Westlake Ave N, Suite 200
Seattle, WA 98109
→ amzgemz.com

I read and respond to every message personally.

✦

Message received.

I'll be in touch personally within 24 hours.