Popularity is not a feeling — it is a reorder cadence
Saying "ovals are popular" is the start of a conversation, not a buying decision. The decision lives in cadence: how often do you reorder a given shape, and how many mm sizes do you hold open at once? Buyers who treat every cut the same way end up with a tray full of slow stones and an empty slot for the one customer who wanted a round. Sorting cuts into velocity tiers fixes that.
Tier one: reorder every month
The tier-one list is short. Round brilliant leads, followed closely by oval and princess. These three shapes cover the majority of bridal and everyday ring traffic, and they should sit in open stock across a useful size range — roughly 4.0mm to 7.0mm for rounds, 6x4mm to 9x7mm for ovals, and 4.0mm to 6.5mm for princesses. The princess cut deserves special mention here: it is the most affordable way to offer a square shape, it pairs cleanly with a straight wedding band, and its sharp corners take a brilliant-cut sparkle that younger bridal buyers specifically ask for. If you carry only one square cut, it should be the princess, not the asscher.
Tier-one stones should never drop below a two-stone safety stock in each popular size. When you reorder, add ten percent to account for the busy month you did not see coming.
Tier two: reorder quarterly
Cushion, pear, and radiant live here. They sell, but not to every customer. Hold one or two stones per popular size rather than a full size run. The cushion moves on yellow-gold and vintage requests; the pear moves on elongated-finger and fashion requests; the radiant moves when a customer wants an emerald outline without the inclusion risk. Because these shapes share customers who are browsing rather than buying, it is worth keeping at least one of each on hand — a missing tier-two stone is a lost sale to a shop twenty minutes away that stocked one.
Tier three: order on demand
Marquise, heart, and asscher sit here. They are beautiful, and they absolutely sell, but they sell to a specific customer who will wait two to three weeks for the right stone. Holding open stock in all three shapes across a full size range ties up more cash than most independent shops can justify. Instead, keep one display sample of each — at a popular size — and quote a two-to-three-week lead time for anything else. Your supplier's cut-to-order turnaround becomes your inventory, for free.
Heart cut is the exception that proves the rule around Valentine's Day and graduation season. For four to six weeks a year it moves from tier three into tier two. Watch your own calendar and bump the heart stock in late January. The same seasonal logic applies to pear: it climbs in spring proposal season and settles back in summer. Tiering is not a permanent label — it is a cadence you adjust twice a year based on what your own receipts show.
How popularity shifts by region and season
Urban boutiques skew more toward oval and pear; suburban stores lean round and princess; beach and resort towns sell more fashion cuts because customers buy on impulse. Proposal season (November through February) favors solitaires and ovals; graduation and wedding-gift season (May through June) favors smaller, stackable cuts like princesses and cushions. Track your own receipts by month for a year and the pattern will be obvious — do not rely on national averages when your local customer base is the real data.
The safety-stock math that keeps the shelf full
Once you know how fast a size sells, set safety stock at two weeks of average sales. If your shop moves one 5.0mm princess every three weeks, holding two in stock means you reorder when one is left — never zero. This sounds obvious, but most stockouts happen because a buyer waits until the tray is empty before placing the order, and the supplier's two-week lead time turns into a four-week gap on the shelf. For tier-one cuts, order a slightly larger quantity than you think you need; the small extra cost of overstock on a fast mover is far lower than the cost of losing a sale to the shop across town. For tier-three cuts, the opposite is true — overstock there sits for a year.
The weekly ten-minute check
Every Monday morning, count stones in each tier and reorder whatever has dropped below safety stock. This habit takes ten minutes and prevents the most common wholesale regret: realizing in March that you ran out of 5.0mm princesses in January and never reordered. For a current view of the sizes and shapes we ship fastest, see moissanite rings and match the moving SKUs to your own tray.