A parcel of 50 loose moissanites left Bangkok on a Monday and landed in Toronto on Friday. The customer opened it on Monday afternoon and called: every stone was loose in the bag, three had chips on the table facets, and the certificates were bent in half. The supplier had shipped them in a single gem bag with a slip of paper. The claim took six weeks to settle, and the customer never reordered. Packaging is the part of wholesale moissanite that looks trivial until it fails, and it always fails in exactly the ways you did not test.
This article walks through how professional moissanite parcels are packed for air freight, what the interior looks like, what paperwork travels with the stones, and where the common mistakes are. It applies to loose-stone parcels, matched pairs, and small finished jewelry shipments.
The inner layer: paper, not plastic
Loose moissanites ship best in fold-around gem paper (also called diamond paper or parcel paper). Each stone goes into its own fold, table-up, with the fold edge tucked under the girdle. A foam-stocked gem box then holds 12 to 24 of these folds in pre-cut slots. Plastic bags are the default mistake: stones slide against each other, and even though moissanite is Mohs 9.25, a table facet can chip against a girdle edge after a week of rattling.
For matched pairs, the two stones go into the same fold but are separated by a folded strip so the crowns do not touch. Certificates go in a separate cardboard sleeve, never in the same slot as a stone. We cover certificate verification in GRA certificate verification for bulk parcels. For the broader export context, see exporting moissanite packaging and protection.
The middle layer: foam, silica, and a locked case
The gem paper folds sit inside a plastic or aluminum gem case with a fitted foam insert. The foam should hold each fold snugly—if you can shake the case and hear movement, the parcel will not arrive clean. A 1-gram silica gel packet goes into the case to absorb humidity; this matters on sea freight more than air freight, but it costs nothing. The case itself goes into a padded mailer, and the mailer goes into a corrugated outer box with at least 5 cm of void fill on all sides.
For parcels above $2,000 declared value, add a tamper-evident seal on the outer box and use a courier that requires a signature. Insurance should cover the declared wholesale value, not the retail replacement value—insurers will not pay retail on a wholesale shipment. The FTC Jewelry Guides do not set packaging rules, but they do govern how you describe the stones on the commercial invoice, so make sure the invoice matches the parcel manifest.
The paperwork that travels with the stones
Every wholesale parcel should have three papers: the packing list (stone-by-stone SKU, size, color, clarity, certificate number), the commercial invoice (value, HS code, seller and buyer tax IDs), and the GRA certificate for each stone in the parcel. For shipments into the EU, a REACH declaration may be required depending on the finished product; ECHA publishes the current status at echa.europa.eu. For finished jewelry into the US, the FTC and CBP require country-of-origin marking; the baseline is in 16 CFR Part 23, summarized on eCFR.
Do not ship loose stones in the same box as finished jewelry unless the jewelry is individually boxed. Stones scratch polished metal surfaces even at Mohs 9.25, and a scratched ring comes back as a return. For setting notes that affect how stones arrive ready to mount, see girdle thickness notes.
What a rejected parcel looks like
Across our own logistics feedback, the most common arrival issues are: (1) stones loose in the outer bag because the paper fold was not tucked; (2) chips on culets from stones touching in a shared slot; (3) bent or water-stained certificates; (4) the packing list not matching the parcel, which triggers a customs hold; (5) declared value too low, which draws inspection. A well-packed parcel arrives with the gem case rattling-free, certificates flat and dry, and the manifest matching stone-for-stone.
For pricing context on what a parcel costs to replace, see carat weight pricing tiers and 1ct to 5ct stocking. And remember: insurance does not cover a parcel that was poorly packaged. The carrier will inspect and deny.
Can I ship moissanite in a standard jewelry pouch?
Only for hand-delivery or local courier. Air freight requires fold-around paper and a foam case. Pouch shipments chip stones.
Do I need to declare the full wholesale value?
Yes. Under-declaring saves a small amount of duty but voids insurance and can trigger a customs seizure. See 16 CFR Part 23 for marking rules.
How many stones fit in a standard gem case?
12 to 24 folds depending on size. A 50-stone parcel usually needs two cases.
Should certificates be in the same box as stones?
In a separate sleeve, never in the same slot. Bent certificates get rejected at appraisal.
Wholesale supply. Every HOLYCOME parcel ships in fold-around gem paper, foam-fitted gem case, silica gel, and a signature-required outer box, with a stone-by-stone packing list matching the GRA certificates. Apply for a wholesale account to see current parcel minimums.
