Omnisend vs Klaviyo (2025): The Best Choice for Shopify Jewelry Stores

High-AOV jewelry purchases rarely happen in a single click. Shoppers browse styles and metals, compare stones, save wishlists, wait for price drops, and return for anniversaries or gifting seasons. For Shopify jewelers, email/SMS platforms are not just broadcast tools—they orchestrate a long, trust-heavy journey. In 2025, the short list often comes down to Omnisend and Klaviyo. Both are strong, but they shine in different scenarios.

Below, we compare them through the lens of jewelry commerce: pricing at typical list sizes, automation depth (e.g., Back in Stock, Price Drop, post-purchase care), segmentation, predictive intelligence, SMS consent, and Shopify fit. We’ll finish with clear recommendations by store type—without declaring a single winner.

Quick snapshot for jewelry brands (as of October 2025)

Notes on pricing sources: Omnisend tiering and limits are described on the app listing and FAQ; several independent reviews corroborate ranges. See the Omnisend app listing (Shopify), Omnisend Account FAQ, and an overview of SMS pricing. For Klaviyo, reference the official pricing page and billing model, native flows docs, and a 2025 third‑party breakdown of high‑tier costs.

• Omnisend plans and limits are detailed in the 2025 listing and help docs; see the description under “Omnisend” below for cited sources.
• Klaviyo’s email pricing starts at entry tiers and scales by active profiles; high-tier estimates (e.g., ~100k contacts) are widely cited by 2025 roundups.

Omnisend: Strong omnichannel value, easier launch for small teams

Time-stamped facts (October 2025):

• Plans: Free, Standard (from roughly $16/month for 500 contacts), and Pro (from roughly $59/month for 2,500 contacts). Official plan snapshots and feature highlights are on the app listing in Shopify’s marketplace; see the details in the 2025 entry for Omnisend on Shopify App Store.
• Email limits: Free includes 500 emails/month to up to 250 contacts. Standard provides monthly email credits tied to list size; Pro includes unlimited emails. These limits are described in the 2025 Omnisend Account FAQ.
• SMS economics: U.S. SMS pricing is documented around $0.015 per SMS, and Pro includes monthly SMS credits equal to the plan price; see the 2025 explanation in Omnisend’s SMS pricing guide.

What matters for jewelry merchants

• Ecommerce-first automations: Abandoned cart and browse abandonment are straightforward to launch. Transactional workflows (order/shipping confirmations) can be customized inside Omnisend—useful for post‑purchase care, warranty reminders, or sizing guidance.
• Omnichannel in one UI: Email, SMS, and web push can run from a single workflow builder—handy for small teams during holiday spikes.
• Recommendations on Pro: AI‑driven product recommendations are available on Pro as of mid‑2025 updates. This helps surface complementary pieces (e.g., matching bands or gemstone studs) without heavy manual rules.

Strengths

• Lower total cost at mid-to-large list sizes vs. Klaviyo is frequently reported in 2025 comparisons; unlimited emails on Pro reduce overage anxiety in peak gifting seasons.
• Smooth Shopify integration with ecommerce triggers; and a UX many small teams find easier to adopt.
• Monthly SMS credits on Pro can offset seasonal spikes.

Trade-offs

• Fewer native predictive analytics features than Klaviyo; if your strategy depends on sophisticated propensity models, you may outgrow Omnisend.
• Native “Price Drop” is not advertised; it can be built via events/integrations, but requires more setup than Klaviyo’s turnkey option.
• Some advanced features (e.g., AI recommendations) are gated to Pro.

Who tends to choose Omnisend

• Boutique jewelers (≤20k contacts) wanting speed-to-value, omnichannel orchestration, and predictable email volume.
• Teams prioritizing transactional customization and simpler workflows over deep predictive modeling.

Where to verify official details

• Plan snapshots and features on Omnisend on Shopify App Store.
• Limits and billing in the 2025 Omnisend Account FAQ.
• SMS cost mechanics in the 2025 Omnisend SMS pricing guide.

Klaviyo: Deeper predictive analytics and native Back in Stock/Price Drop

Time-stamped facts (October 2025):

• Pricing model: Email plans start around $20/month for 500 active profiles; Email+SMS starts higher. Klaviyo bills by active profiles and automatically shifts tiers as you grow—see the 2025 Klaviyo pricing page.
• Native flows for merch urgency: Klaviyo provides documented setup for Back in Stock flow and Price Drop flow, which are especially relevant for limited-drops or price-sensitive jewelry.
• SMS checkout consent mechanics: Shopify Plus stores can capture SMS consent at checkout via an app block; non‑Plus merchants can use post‑purchase placements—documented in the 2025 guide on checkout SMS consent with Shopify.
• Cost at scale: Independent 2025 analyses estimate email-only plans around $1,380/month at ~100k profiles; see the January 2025 breakdown in Retainful’s Klaviyo pricing analysis. (Validate current rates on Klaviyo’s pricing page before finalizing budgets.)

What matters for jewelry merchants

• Predictive intelligence: Purchase propensity, churn risk, and expected next order windows can sharpen VIP tiers and re‑engagement timing for high‑ticket SKUs.
• Native urgency flows: Back in Stock and Price Drop run without custom engineering—useful for collectors waiting on specific cuts, sizes, or gold karats.
• Segmentation with no hard caps: Build nuanced cohorts (gift buyers, anniversary buyers, ring‑size segments, material preferences) and run sophisticated tests.

Strengths

• Advanced predictive fields and testing give data-rich teams an edge in LTV growth and CAC payback modeling.
• Large integration ecosystem; deep Shopify event model support.
• Turnkey Back in Stock and Price Drop reduce lift for limited-edition drops.

Trade-offs

• TCO rises quickly with list size, and add-ons (e.g., Reviews, Analytics, CDP) add cost.
• Steeper learning curve than SMB‑friendly tools.
• SMS consent at checkout requires Shopify Plus; non‑Plus stores need alternative capture points.

Who tends to choose Klaviyo

• Scaling or luxury jewelry brands (≥50k contacts) that will exploit predictive analytics, multivariate testing, and granular segmentation.
• Teams with growth/analytics bandwidth and budgets that can absorb higher monthly software spend.

Where to verify official details

• Plans and billing model on the 2025 Klaviyo pricing page.
• Flow documentation for Back in Stock and Price Drop.
• Checkout SMS consent mechanics for Shopify in the 2025 Klaviyo help guide.
• Scale pricing estimates in the January 2025 Retainful analysis.

Scenario-based recommendations

• Small boutiques (≤20k contacts): If you want omnichannel value, predictable email volume, and faster setup, Omnisend’s Standard/Pro tiers are typically the pragmatic choice. If “Price Drop” is central to your strategy, Klaviyo’s native flow is a differentiator; weigh the cost uptick.
• Scaling DTC or luxury (≥50k contacts): If you’ll truly use predictive analytics, granular segmentation, and robust testing, Klaviyo can justify its price—especially for high‑AOV products where a few incremental conversions pay for the uplift.
• Gifting seasons and drops: Both handle holiday orchestration; Omnisend’s Pro SMS credits can absorb spikes, while Klaviyo’s native Back in Stock/Price Drop are powerful for limited runs.

Setup, migration, and compliance notes

• Authentication and branding: Set up custom sending domains and consistent link domains to protect deliverability. Keep jewelry imagery optimized for load speed without losing detail.
• Consent capture: For SMS, ensure explicit consent and proper records (TCPA and regional regulations). On Shopify Plus, Klaviyo supports checkout SMS consent app blocks; non‑Plus stores should use popups, embedded forms, and post‑purchase pages.
• Data hygiene: Deduplicate contacts and suppress unengaged profiles before migrating to avoid surprise cost jumps on “active profile” billing models.

Measuring what actually works (attribution matters)

Email/SMS rarely operate in isolation for jewelry; buyers interact with ads, influencers, search, social, and content before they convert. To invest confidently, pair your ESP choice with rigorous multi‑touch measurement. For merchants wanting a deeper dive into Shopify instrumentation, see this overview of Shopify attribution & tracking to understand how server‑side events and identity resolution can improve downstream segmentation and reporting.

How to choose: a quick checklist

• Do you need native Price Drop and Back in Stock? If yes—and you want them turnkey—Klaviyo has the edge.
• Will your team actually use predictive analytics and multivariate testing? If no, Omnisend’s value and simpler UX may win.
• Is SMS a big lever for you during holidays? Omnisend Pro’s included SMS credits can help; Klaviyo SMS is flexible but budget for credits and potential overages.
• What’s your list growth trajectory? Model TCO at 20k, 50k, and 100k contacts, including add-ons.
• How will you measure ROI across channels? If you plan to validate email/SMS lift alongside paid and influencer, review a real‑world example of advanced attribution across channels to set expectations for what “good” looks like.

Also consider (related, complementary)

If you need a neutral layer to measure true multi‑touch ROI across email/SMS and ads, consider Attribuly for attribution and server‑side tracking on Shopify. Disclosure: Attribuly is our product. It complements either ESP by unifying journeys, improving data reliability, and informing where to scale budgets.

Bottom line

• Choose Omnisend if you want omnichannel value, unlimited email volume on Pro, and an easier path to strong automations without a large analytics team.
• Choose Klaviyo if you will leverage predictive analytics, native Price Drop/Back in Stock, and advanced testing to drive incremental LTV in a scaling or luxury jewelry context.
• Either way, ensure consent is handled correctly, deliverability is protected, and measurement is set up to prove what’s working.

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References (inline):

• Omnisend: plans and features in the 2025 listing on Omnisend on Shopify App Store; email limits in the 2025 Omnisend Account FAQ; SMS costs/credits in the 2025 Omnisend SMS pricing guide.
• Klaviyo: 2025 Klaviyo pricing page; flows docs for Back in Stock and Price Drop; checkout consent mechanics in the 2025 Klaviyo guide; scale pricing estimate from the January 2025 Retainful breakdown.