The Gem | Fospha’s new halo effect research exposes what really worked this Prime Day

Prime Day Exclusive 📦

Prime Day: Big Win or Wakeup Call?

Prime Day 2025 smashed records. Extended to four days, it generated $24.1B in U.S. online sales — a 30% year-on-year surge.

But as brands dive into retros and kick off BFCM planning, one question looms: what actually worked? Which channels truly drove conversions — and how can we know?

That’s where understanding cross-channel halo effects becomes essential. New research from Fospha sheds light on how different platforms influence conversions across both DTC sites and Amazon.

TikTok leads with an 80% uplift in ROAS when Amazon sales are included, followed by YouTube (48%) and Meta (46%). These platforms ignite discovery and spark intent that may convert later — whether on your DTC site or on Amazon. Without visibility into cross-channel halo effects, that impact remains invisible.

👉 Explore Fospha’s Halo Effect research to uncover what really drove your Prime Day results.

Jewelry Radar 👀

JEWELRY TRENDS

Colored Gemstone Rings Embrace Vibrancy in Engagement Fashion and Gifting

Colored gemstone rings are emerging as a fashionable choice for engagement, personal style, and gifting, valued for their unique symbolism and appeal. Marketing professionals should note the shift from traditional diamonds to colorful gemstones, offering a vibrant, customizable jewelry category. This trend presents opportunities for market expansion, tapping into consumer desire for personalized and meaningful accessories.

JEWELRY TRENDS

Emerging Engagement Ring Trends Featuring Bold Colors Unique Settings and Ethical Choices

Engagement ring trends in 2025 emphasize personalization, sustainability, and bold aesthetics, favoring multi-stone settings and colorful gems over traditional diamonds. The shift towards ethical, lab-grown diamonds and custom designs offers unique value propositions for marketers targeting eco-conscious and individualistic consumers. Understanding these trends enables marketers in the jewelry industry to align their strategies with the evolving preferences of contemporary couples.

SUSTAINABLE JEWELRY

Golden Bird Jewels Focuses On Moissanite To Elevate Next-Gen Luxury Jewelry

Golden Bird Jewels, founded in 2018, is pioneering Moissanite as an ethical luxury option, offering high-end jewelry crafted from sustainable materials, appealing to eco-conscious consumers globally. Its strong international eCommerce presence, especially in the U.S. and U.K., reflects significant market traction by focusing on ethical sourcing and innovative design, aligning perfectly with modern luxury trends. The brand's commitment to sustainability and transparency positions it as a leader in the evolving jewelry market, offering a lucrative model for marketing professionals focusing on ethical consumer trends.

Optimization Hub ⚙️

ECOMMERCE STRATEGIES

What Retailers Need to Know About Google's Changing Search Landscape in eCommerce

Google's evolving search landscape demands that eCommerce businesses prioritize structured data, mobile performance, and site speed to maintain visibility and competitiveness.

The AI-powered Search Generative Experience emphasizes clarity in product listings, with schema markup becoming crucial for ranking. To succeed, retailers must adopt a search-first approach, ensuring compatibility with Google's preferences to effectively reach their target audience.

RETAIL MEDIA STRATEGY

Retail Media’s Mid-2025 Reality: Why Advertisers Are Going All in on Full-Funnel

Retail media continues its growth in 2025, with advertisers focusing on full-funnel strategies across various platforms. As Amazon leverages its data dominance, competitors like Walmart and Instacart strive for their share. The landscape demands a unified approach to brand and performance budgets, emphasizing data-driven decisions and measurement incentives.