In the inaugural IJ Talks session at PRET by Couture India, retail consultants and former Titan executives Prabhakar Mahadevan and Rajagopalan J shared actionable strategies drawn from the Theory of Constraints. The duo, which has experience advising brands like Malabar Gold and Diamonds and Tanishq, outlined five data-led principles to boost stock turns, margins, and profitability
The launch of IJ Talks at PRET by Couture India marked a shift in the way jewellery trade events approach knowledge-sharing. Instead of wide-angle industry overviews, this session drilled down into operational challenges — and how to solve them with rigour and data.
Prabhakar Mahadevan and Rajagopalan J, partners at Strategy and Systems Consulting, have worked with retail majors like Tanishq and Malabar Gold and Diamonds. Drawing from their book Demystifying Retail, the duo showed how retailers can boost profitability by identifying what sells fast, phasing out what does not, and using that data to restock more smartly.
The Stock Curve: Fast, Slow, and Everything in Between
At the heart of their approach is inventory classification using a time-based curve:
Head: Fast-moving items (sold in under 60 days for plain gold, or 120 for diamonds)
Belly: Moderate movement (60–180 days)
Tail: Slower (180–270 days)
Non-Moving: Over 270 days
“We find that the top 30% of fast-moving inventory contributes to 40% of sales. But many retailers do not even track this segment separately,” said Mahadevan. “You need to hold on to your winners, and replace them as soon as they are sold. Otherwise, you are unknowingly funding your tail and non-moving stock with the profit you could have earned,” he added.
Five Rules Every Retailer Can Use
The duo listed five rules that can apply to all retailers.
Protect and Replace Fast Movers
When a design flies off the shelves, it signals a winning formula. The smart move is to protect that design category, and replace it instantly. Retailers must treat their top performers like golden geese – the idea is to decode the elements that made it work, and reintroduce a close variation promptly.
“If a fast-moving design sells, we ask: why has it not come back into inventory?” said Rajagopalan. “Do not let that SKU go when it has done well. Identify what made it work — price point, design, weight — and reintroduce a close match immediately,” he added.
Use a 2x2 Planogram to Guide Buying
The consultants recommend using a planogram – a simple visual grid – with stock turn on one axis and sales value on the other. This, they explain, would help retailers make smarter buying decisions by mapping products based on how fast they sell, and how much revenue they bring in
“High-turn, high-value items? Keep those. Low-turn, low-value ones? Reconsider. This is how you take emotion out of inventory, and let data speak,” said Rajagopalan.
Replenish Intelligently with Design Banking
“Do not let the vendor’s push drive your inventory,” cautioned Mahadevan, warning that this approach often leads to overstocking, duplication, and a mismatch between what is supplied, and what actually sells. Instead, the consultants advocate for building a curated repository of winning styles tailored to the retailer’s own data.
“Build a design bank rooted in your own data — a library of designs that match your store’s unique success formula,” said Mahadevan, pointing out that by analyzing what consistently performs — whether it is a particular setting, motif, price band, or karat weight — retailers can create a smart blueprint for replenishment. “This bank becomes the go-to source when restocking or launching collections – this ensures that every piece added to inventory has proven potential,” he said.
Monitor Tail Inventory with a 90-Day Plan
Tail inventory — pieces that have been in the store for 180 to 270 days — often lurks under the radar, quietly draining working capital. These pieces are not yet old enough to be written off, but they are not moving either, and ignoring them leads to bloated inventory costs. The consultants recommend assigning a 90-day decision window to this category, during which retailers must take action. That could mean promoting the item with urgency, melting it for reuse, rotating it to another store location, or creatively reworking it -- the key is to avoid inertia.
“Items in the 180–270-day range need active decisions. This is where most working capital gets stuck. Promote it, melt it, rotate it, or rework it — but do not ignore it,” Rajagopalan said.
Set Boundaries for Seasonal Stock
Seasonal buys — whether for Diwali, Akshaya Tritiya, or the wedding season — often fall prey to over-ordering, leading to unsold remnants clogging up inventory for months, sometimes years. Retailers may assume that because such stock is in demand during the festive period, it deserves a longer rope. But the consultants caution against this mindset. Set firm rules for how much seasonal inventory you will buy, by category and sub-category, and how long you will keep it post-season, before marking it down, or moving it out.
“Festive or bridal inventory does not mean carte blanche. Set clear limits on quantity, sub-category, and shelf life. If you do not decide when it should exit, it will stay forever,” added Mahadevan.
Retailer Input and Custom Strategy
Ganesh Narayan Cotha of C. Krishniah Chetty & Co. raised a relevant point about high-value statement pieces, saying, “Jewellers often carry select pieces that are not meant to turn fast. They are part of the brand’s positioning, not just the sales pipeline.” The consultants responded by acknowledging that not all stock decisions can be led by velocity.
While smart stock rotation keeps the business lean and profitable, the presence of iconic designs — be it a prized solitaire, a one-off polki creation, or a heritage piece — anchors the brand’s identity. These are not fast-movers, nor are they meant to be. But their value lies in how they influence perception, bring customers in, and give the brand its aspirational edge.
Mahadevan acknowledged the need for such stock too. “What we are offering is a toolkit for operational stock, not your showpieces or iconic designs,” he clarified. “This is for the core of your working inventory — the 70%–80% that drives day-to-day performance,” he added.
Bringing Data and Discipline Together
What sets this framework apart is that it is already being implemented through a proprietary software tool the consultants have developed. “It is not just theory. Our platform helps you segment stock, track turn, and make buying and liquidation decisions with precision,” said Rajagopalan.
“All retailers know their sales. Few track their stock turn. And that is the missing metric. Start there — that is your first unlock,” said Mahadevan.
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