Most independent jewelry buyers do not run out of cash because they overpaid for a diamond. They run out of cash because they bought the wrong assortment in March and sat on it until September, then had no budget left when November walked in the door. Open-to-buy, usually shortened to OTB, is the planning tool that prevents this. It is not a complex enterprise system. It is a monthly arithmetic exercise that tells you how much you can spend on new wholesale inventory without breaking your own cash-flow plan. Buyers who ignore it treat every shiny new collection as an emergency purchase; buyers who use it sleep at night.

The basic formula

Start with what you want your end-of-month inventory to be worth at retail. Add planned sales for the month. Add planned markdowns. Subtract what you already have in stock at retail. Subtract what you already have on order from suppliers. The number left is your open-to-buy. In plain terms: if you want a $120,000 end-of-month inventory, expect $40,000 in sales, plan $5,000 in markdowns, currently hold $90,000, and have $25,000 on order, your OTB is $50,000. That is the ceiling for new purchase orders this month. No feelings, no exceptions. If a factory rep walks in with a collection you love but your OTB is zero, you either reallocate from slow stock or wait until next month.

Jewelry turnover is slower than fashion

The mistake new buyers make is importing turnover targets from apparel. A fashion boutique might turn inventory four to six times a year. Fine jewelry turns slower. Bridal solitaire inventory typically turns 1.5 to 2 times annually. Silver and stackable categories turn 3 to 4 times. Watch your actual numbers for two full quarters before setting targets; over-aggressive turnover goals push you into fast-moving but low-margin pieces, which erodes the margin you bought the jewelry business to earn. A bridal store doing $600,000 a year with a $250,000 inventory is healthy; a store trying to force $600,000 out of a $120,000 inventory will be out of stock on everything customers want.

Phase the budget by season

A flat monthly OTB ignores the jewelry calendar. August should carry a smaller OTB because November and December are coming and you want cash available for bridal and gifting stock. January and February carry the largest OTB because engagement season starts in January and Mother's Day and graduation follow in May. Build your annual plan around four peaks: Valentine's Day, graduation and Mother's Day, back-to-school and fall engagement season, and the November-December gifting block. Roughly 40 percent of annual jewelry sales land in the last ten weeks of the year, so do not spend your bridal budget in June. Phasing is where most buyers fail; they buy evenly all year and wonder why Q4 is understocked.

Work the reorder cycle, not just the first order

OTB is not only about initial buys. It is also about min-max reorders for your proven winners. Class your SKUs. "A" items sell within 60 days and get reordered the moment they hit the floor minimum. "B" items sell within 120 days and get watched. "C" items sit beyond 180 days and get marked down or returned. Your OTB should weight heavily toward reordering A items and testing a small number of new C candidates, not toward gambling on a whole new collection every quarter. New buys should eat no more than 20 percent of your monthly OTB; the rest protects what already works.

Watch the on-order trap

The most common OTB failure is forgetting what is already in transit. A factory in China ships on a 30- to 45-day lead time, so the order you placed last month is still invisible on your shelves but already committed against your budget. If you ignore on-order, you double-buy. Keep a single live sheet: SKU, units, landed cost, expected arrival date. Update it every Friday. Treat on-order as cash already spent, because it is. When a rep offers a spring collection in November, you may love it, but the on-order column already accounts for your cash.

Markdowns are a decision, not an accident

When a C item crosses 180 days, mark it down on a schedule. Do not wait until it becomes a years-old memory piece eating display space. A 20 percent markdown at 180 days, then 40 percent at 240 days, clears most slow movers without destroying margin. Write the markdown into your OTB plan so it does not surprise you at month-end. Better to recover 60 cents on the dollar than to hold a ring for three years and recover nothing.

Review OTB the first business day of every month, in twenty minutes, with your actual sales numbers. The buyers who win at wholesale jewelry are not the ones who find the cheapest factory. They are the ones who always have cash available when the right SKU appears.

Authoritative References

For buyers who need to verify the technical and regulatory basis of this guide, the following independent institutions publish authoritative reference data:

ISO 9001 Quality Management - the international standard for consistent production quality.
Wikipedia: Jewellery - manufacturing processes, materials and global trade background.