A buyer pricing a 1.9 ct oval noticed something odd: a 1.9 ct stone cost almost the same per carat as a 1.5 ct, but jumping to 2.0 ct raised the per-carat price by nearly 18%. Moissanite wholesale pricing does not climb smoothly with weight. It steps up at "magic" carat and millimeter breakpoints, and the buyer who understands the breakpoints buys more stone for the same budget.
This guide lays out the tier breakpoints wholesale buyers watch and how to use them to stretch a budget.
Why pricing jumps at breakpoints
Like diamond pricing, moissanite wholesale pricing clusters around sizes customers ask for by name. A shopper says "two carats," not "1.92 carats," so a stone that crosses the 2.0 ct threshold commands a premium the moment it qualifies. The same effect appears in millimeters, because mounts are built in fixed millimeter seats. The baseline pricing logic follows the same gem factors the trade uses, anchored in GIA's 4Cs education, adapted for moissanite's per-millimeter cost.
The main wholesale breakpoints buyers watch are:
- 1.0 ct (about 6.5 mm round). The bridal entry point; per-carat price steps up here versus sub-1 ct melee.
- 1.5 ct (about 7.5 mm). The "look bigger" tier, strongest in oval.
- 2.0 ct (about 8.0 mm round). The first major magic-number jump — often a 15-20% per-carat rise.
- 3.0 ct and up (about 9.0 mm). Large-stone premium, with lower supply and longer lead times.
How to buy around the step
The strategy is to land just below the next breakpoint when budget is tight. A 1.8 ct oval at 8.8 x 6.6 mm looks nearly identical to a 2.0 ct oval to the retail customer, but costs meaningfully less per carat. Conversely, if the customer explicitly wants the "2 ct look," buying the stone that clears the 2.0 ct line earns the boutique a ticket that justifies the step. The shape choice changes the math — see round versus oval demand — because oval spreads the same weight across a bigger face.
Pair the size decision with the grade decision: paying VVS for a stone bought just under a breakpoint can erase the saving, so check eye-clean versus loupe-clean clarity before upsizing. The resale ceiling of the tier you buy is in grading loose moissanite for resale value.
Tier pricing and your PO
When ordering a mixed parcel, split the budget across tiers deliberately: a few stones at the premium breakpoint for high-ticket bridal, and the rest just under the breakpoints for everyday margin. Certificate backing matters more at the high tiers because the customer expects documentation — read what buyers expect on a moissanite certificate. And reorder the fast tiers before the slow ones, per wholesale reorder stocking strategy.
When to cross a breakpoint instead of ducking it
Ducking the breakpoint saves money on everyday stock, but crossing it is the right move when the customer is buying a statement piece. A shopper who walks in asking for a "two-carat ring" wants the perceived size and the named weight; selling them a 1.8 ct oval and calling it a 2 ct is both a misrepresentation under FTC Jewelry Guides (16 CFR Part 23) and a ticket that will not close. For those customers, hold one or two stones that actually clear the 2.0 ct line at the D-F grade, even though the per-carat cost jumps, because the ticket margin compensates.
The breakpoint math also changes by metal. A 1.8 ct oval in a halo setting looks larger than the same stone alone, so a halo buyer may be satisfied just below the line while a solitaire buyer wants the real 2 ct. Match the stone to the setting style: buy stones that clear the named size for solitaires, and stones just under the line for halos and three-stone mounts where side stones add visual weight. This is why the mount plan is decided alongside the stone tier.
Why is 2.0 ct so much more expensive?
It is a named size customers ask for, and cutting a clean stone that lands at or just above 2.0 ct yields less usable weight from the rough. Supply and demand both push the per-carat step up.
Should I buy just under a breakpoint to save?
Yes for everyday stock — a 1.8 ct oval reads like a 2 ct one at arm's length. No for customers who specifically ask for the "two-carat" size, because the ticket depends on hitting the threshold.
Do millimeter sizes matter as much as carat?
For setting, yes. Mounts are built to millimeter seats, so a stone that does not fit a standard seat needs custom work and costs you margin. Buy standard millimeter sizes.
Does the price jump the same for every shape?
No. Oval and elongated shapes carry a face-up-size bonus that softens the per-carat step; round prices climb more steeply with weight because it is the most demanded cut.
Buy across tiers from HOLYCOME. We publish a tiered per-millimeter price list for D-F moissanite, so you can choose stones that land just under the next breakpoint without sacrificing face-up size. Tell us your budget and target ticket and we will build the parcel across tiers. Apply for a wholesale account and request the current carat-tier price list — minimum order 20 stones.
