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A 25x ROAS Lead Generation System For A Luxury Diamond Retailer

About The Client

For any consultation-led retailer of luxury GIA-certified diamonds, growth is constrained by a reliance on reputation and referrals. And while this model is essential for building a brand to begin with, it lacks a scalable process for new customer acquisition.

When the client approached us, they had been running a relatively successful operation, but had hit a revenue plateau of approximately ฿200,000 per month. The cause wasn’t the quality of their product, but the rigidity of their process: they had no predictable system for bringing qualified buyers from online discovery into their physical showroom.

The client we discuss in this case study is a premium Bangkok-based jeweller specialising in GIA-certified diamonds and bespoke engagement and wedding rings. Their business is centred on guiding their clients through one of life’s most significant financial and emotional purchases, where expert consultation is essential.

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The Challenge

In order to achieve meaningful growth, the client needed to solve the central challenge of their offline-dependent business model. A successful strategy had to deliver on three commercial imperatives:

  • Build a New Customer Acquisition Engine: They needed to move beyond their existing network and create a consistent, predictable flow of inquiries from high-net-worth individuals.
  • Bridge the Online-to-Offline Gap: The strategy had to build enough trust and intent online to compel a user to book a high-stakes, in-person showroom consultation.
  • Generate a Profitable Return: Every advertising Baht had to be held accountable, delivering a measurable and significant return on investment tied directly to high-ticket sales.

Our Strategy

We began by constructing a dual-funnel digital advertising system to both create new demand and capture existing purchase intent, seamlessly guiding prospects from the initial seeds of interest to a direct, trust-building conversation:

For a considered purchase, the conversation is the conversion. We used Meta Messenger campaigns as a low-friction entry point to the sales process. The audience strategy was layered to find buyers at every stage:

  • New Acquisition: Targeted affluent Bangkok consumers with interests in luxury goods and engagement rings.
  • Lookalike Audiences: Scaled reach by finding new users with behavioural profiles matching their most valuable existing customers.
  • Retargeting: Re-engaged past website visitors and page engagers to nurture interest and prompt an inquiry.

We made sure our client were the first choice for buyers actively searching for their products. Google Search campaigns targeted high-intent, bottom-of-funnel Thai keywords like “เพชร 1 กะรัต ราคา” (1-carat diamond price).  Appearing at this crucial moment allowed us to capture prospects with pre-existing purchase intent and directed them to immediate contact options (LINE, Messenger, Phone).

In order to maintain visibility throughout the customer journey, we executed a Google Performance Max campaign. This kept the client’s brand present across Search, YouTube, and the Display Network, using customer lists and competitor targeting to reinforce their message and influence prospects who were moving toward a final decision.

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฿200k monthly growth
250 %
Return on ad spend
1 x

The Results

The successful implementation of this integrated system created a predictable and highly profitable customer acquisition process, directly addressing the client’s core business challenges:

  • Monthly Revenue Increased by 500%: Sales grew from a ฿200,000 monthly average to consistently exceeding ฿1,000,000 per month.
  • A Self-Funding 25x Return on Ad Spend (ROAS): On a monthly ad spend of approximately ฿40,000, the campaigns generate over ฿1 million in revenue, demonstrating exceptional profitability.
  • A Consistent Flow of Qualified Showroom Visits: The online-to-offline model was successfully validated, delivering a steady stream of high-intent buyers to their physical showroom for consultations.

Our Continuing Work with Them

Our ongoing partnership is focused on scaling this now-proven system. We continue to refine keyword performance, test new ad creatives, and expand retargeting pools to improve lead quality and maximise the return on a highly profitable advertising investment.

Do you need to build a predictable, high-value lead pipeline for your business? Contact Move Ahead Media today for your no-obligation consultation.

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