A buyer in Dubai bought a 50-stone parcel of 1 ct D-VVS round moissanite at a price that looked too good. When it arrived, the color was actually G-H, three stones had chips hidden under the prongs, and the certificates did not match the stones. The supplier offered a 20% restocking fee to take them back. The buyer ate the loss. Bulk parcels are where wholesale moissanite margins are made or lost, and the difference between a good lot and a bad lot is a 30-minute inspection. This article is that inspection, written as a checklist.
Start with the certificate-to-stone match
Every stone in a parcel should come with a GRA certificate (or equivalent lab report) that matches the stone on size, color, clarity, and shape. Match the certificate number to the laser inscription on the girdle with 10x loupe—not every supplier inscribes, but if they do, the number must match. If ten stones in a 50-stone parcel have no certificate, treat the parcel as a no-certificate lot and price it accordingly. We cover this in depth in GRA certificate verification for bulk parcels.
Color consistency is the whole game
A D-F parcel should read colorless across the whole lot when viewed side by side on a white tray under daylight-equivalent light. Pull one stone at random and compare it against the stated grade; then pull five more. If any stone reads warm (yellow or grey) when the certificate says D-E, the parcel is misgraded. Color drift is the most common wholesale complaint. Our D-F vs G-H stock guide shows what the grades should look like.
Clarity spread: check the worst stone, not the best
Parcel grading is not about the nicest stone. It is about the worst. Sort the 50 stones on a tray and pick out the three with the most visible inclusions. If those three still face-up eye-clean under 10x, the parcel is sellable at VVS-VS pricing. If one of the three shows a black inclusion to the naked eye on a white background, downgrade the parcel to VS-SI and re-price. The GIA clarity scale applies as the reference, even though GRA does its own grading.
Cut proportion: the 10-stone sample test
Randomly pull ten stones and check the proportions: table %, depth %, girdle thickness. For a round, the well-cut band is table 54–60%, depth 59–63%, girdle thin to medium. If seven of ten fall in the band, the parcel is consistently cut. If it is a mixed bag, expect returns from customers who compare side by side. For shape-specific proportion checks, see emerald step-cut reflection, cushion chunky vs crushed-ice, and princess corner protection.
Chips, culets, and girdle damage
Run every stone under 10x on the girdle and culet. Hidden chips happen when stones rattle in transit—see packaging and protection. A chipped culet on a round is usually fixable in a re-polish at $3–$5 per stone; a chipped table facet is not. Reject any stone with a table chip on arrival and document it with photos for the claim. The IGI grading resources have reference photos for typical damage.
How many stones should I pull as a sample?
10 random stones per 50-stone parcel is the industry norm. Pull 20 if the parcel is over 100 stones.
What if certificates do not match stones?
Reject or re-price as no-certificate. Do not mix certified and uncertified stones in the same SKU.
Is a 50-stone parcel always cheaper than singles?
Yes, usually 15–25% cheaper per carat—if the parcel grades cleanly. See carat pricing tiers.
Can I return a misgraded parcel?
Only if your PO terms include inspection rights. Write a 7-day inspection clause into every bulk PO.
The paperwork check before you pay
Before transferring funds, ask the supplier for a stone-by-stone manifest: SKU, millimeter size, color, clarity, certificate number, and a photo of each stone on a white background. Cross-reference the manifest against the GRA numbers. If the supplier cannot or will not send photos, do not buy. A 50-stone parcel photographed on a white tray in good light takes 15 minutes to prepare; a supplier who cannot be bothered is hiding something.
For international parcels, confirm the HS code on the commercial invoice. Moissanite loose stones typically ship under the gemstone code, and misclassification draws customs inspection. The baseline US marking rules are in 16 CFR Part 23, summarized on eCFR. For the broader pricing context, see carat pricing tiers and 1ct to 5ct stocking.
Finally, weigh the parcel on a jeweler's scale and compare against the stated carat weights. Moissanite's specific gravity means a 1 ct equivalent stone should weigh close to the stated weight; a stone that weighs 15% under its label was mis-measured, and the price you negotiated was on the wrong number. Document the weight check on the parcel manifest before you sign.
Wholesale supply. Every HOLYCOME parcel ships with stone-by-stone GRA certificates, and we allow a 7-day inspection on bulk orders. Apply for a wholesale account and request the current bulk stock list.
