The Gem | Vogue Names 15 Lab-Grown Diamond Brands to Watch in 2025

The Gem

This week, we're tracking growth signals, creative shifts, and market momentum in jewelry & luxury ecommerce:

• She Said Yes launches campaign for greater transparency in lab-grown diamonds

• Vogue names 15 lab-grown diamond brands to watch in 2025

• Gen Z’s demand for hyper-personalisation meets the rise of AI-driven recommerce

⏱️THE MINUTE READ

New Research Uncovering Halo Effect Impact on Amazon and TikTok Shop

Retail growth is no longer confined to brand .com websites. Fospha’s newest report shows customers are shopping across a fragmented mix of web, Amazon, and TikTok Shop, and the data proves it.

In their analysis of $176M in ad spend, Fospha’s research found that:

But the report’s biggest finding? 42% of Amazon sales are influenced by ads on TikTok, Meta, Google, and Snap. Traditional tools miss this impact completely.

To solve this, Fospha built Halo. The report demonstrates how Halo’s daily, full-funnel measurement unifies .com and marketplace performance into a single view, capturing the true cross-channel impact of marketing with Unified ROAS [(Web + Amazon Revenue) / Channel Spend].

👉 Download Fospha’s Halo Report: Measure and Grow .com and Beyond to explore the full data and insights.

📌WEEKLY MUST-KNOWS

SUSTAINABILITY
Vogue’s Lab-Grown Shortlist Redefines Status

Vogue officially anointed 15 lab-grown diamond labels as must-knows for 2025, moving the conversation from niche ethics to mainstream style. The endorsement accelerates consumer normalization of non-mined stones, pressuring heritage houses to clarify provenance storytelling and pricing architecture.

INFLUENCER ACTIVATIONS
Taylor Hill And Camille Rowe Front David Yurman Holiday Push

The New York house tapped two social-native supermodels for its fall-holiday campaigns, pairing short-form video with shoppable posts to court Gen Z luxury buyers. The move underlines how celebrity credibility is shifting from red-carpet moments to always-on social storytelling—forcing media mixes to pivot toward creator-led GRPs.

SUPPLY CHAIN TRANSPARENCY
She Said Yes Launches Radical Transparency Campaign

The D2C engagement-ring brand now publishes mine-to-ring provenance data, pricing breakdowns and third-party audits in real time. The shift answers FTC green-washing scrutiny and raises customer expectations for proof-backed claims—putting pressure on competitors still relying on opaque sourcing narratives.

⚡QUICK READS

Creative Trends: Ad Age’s round-up of 12 standout campaigns shows humor-first, culture-hacking creative outperforming hard-sell spots—signals to loosen brand guidelines ahead of Q4 tests.(More)

Agency Ranking Reveals 2025 eCommerce Powerhouses: DesignRush lists Amazon, Shopify and Walmart as the top platforms shaping paid media costs—intel worth folding into Q4 budget scenarios.(More)

U.S. Costume Jewelry Demand Surges: OpenPR says the mass-market segment is outpacing fine jewelry growth 2:1, signaling fresh upsell funnels for luxury brands seeking entry SKUs.(More)

🧠OPTIMIZATION HUB

RETAIL INNOVATION
Google Introduces AI-Powered Business Review Summaries in Chrome for Enhanced Shopping
Google's new feature in Chrome displays AI-generated summaries of online store reviews, accessible by tapping an info icon next to the URL. This tool, listing star ratings and summaries, offers consumers a straightforward view of retailer reputations. It's vital for brands to ensure positive Google reviews to influence purchase decisions, as this feature prominently highlights customer feedback during site visits.

DIGITAL MARKETING STRATEGIES
Marketing Tips for Uncertain Times
In times of economic uncertainty, maintaining marketing efforts on Pinterest is crucial for long-term success, as the platform reaches a broad, actively shopping audience. By leveraging awareness campaigns, performance marketing solutions, and AI-driven tools, marketers can optimize engagement with high-intent shoppers while emphasizing value-based messaging to align with changing consumer budgets.

ClickZ is a ClickZ Media publication in the DTC eCommerce division