When two suppliers quote very different prices for a similar-looking moissanite ring, the difference is almost never "margin". It is specification. Here is the cost stack, in the order it usually matters.

1. Stone cost and grade

Moissanite pricing is driven by size, cut quality and color consistency rather than rarity. A calibrated parcel of 1.5 mm melee costs a fraction of the same carat weight in large singles, because large stones need to be cut from larger rough. Fancy colors and specialty cuts such as crushed ice or Portuguese cuts carry a premium.

2. Metal — the largest variable

Metal	Relative material cost	Typical use
925 sterling silver (rhodium plated)	Lowest	Volume fashion and accessible bridal
10K gold	Mid	US market value lines
14K gold	High	Mainstream bridal and fine jewellery
18K gold	Highest	Premium and European fine jewellery
Platinum	Highest and volatile	Luxury bridal

Metal weight is set by the design. A hollow setting uses less metal and costs less, but it dents more easily and feels light in hand — a trade-off your retail partner will notice. We quote metal weight per piece so you can make that choice consciously.

3. Labour: setting method decides the price

Prong setting is fastest. Bezel and channel setting take longer. Pave and micro-pave with dozens of tiny stones can double or triple labour cost and add a real quality risk if the factory lacks experience. Ask how many stones are set per piece and by what method.

4. Plating and finishing

Rhodium plating on silver adds cost but prevents tarnish and discolouration — essential for retail. Plating thickness matters: a thin flash plating wears through in months. Ask for the plating specification in microns and put it in the approval sheet.

5. Packing and certificates

Poly bag and simple box is the cheapest option. Branded boxes, pouches, tags and printed certificates add a small but real cost per piece, and they matter for direct-to-consumer sellers. GRA certificates add a per-stone cost that is worth it above 0.50 ct and usually not worth it on melee.

6. Quantity and the MOQ effect

Setup, CAD, mould and colour-matching costs are fixed. That is why the price per piece falls with quantity: 50 pieces amortises setup over more units, and 200+ pieces allows us to cut moulds for the specific design rather than adapting an existing one.

Order quantity	Typical price effect	What changes
20 – 49 pcs	List price	Existing moulds, standard packing
50 – 199 pcs	About −13%	Better stone sorting, combined production run
200 – 999 pcs	About −26%	Dedicated mould, custom packing, priority line
1,000+ pcs	Negotiated	Reserved capacity, scheduled annual pricing

How to negotiate on facts, not feelings

Instead of asking for a discount, ask for the cost stack: stone grade, metal weight, setting method, plating thickness, packing. Then decide which line you are willing to change. Reducing stone grade by one step or switching from pave to prong setting usually moves the price more than any negotiation on margin — and it keeps the relationship healthy.

What to put in your purchase specification

Before you place a wholesale order, write the specification down and make the factory confirm it in writing. Every dispute we see between a buyer and a supplier traces back to a vague or missing specification sheet. The following items are the ones that actually cause problems when they are left open:

Item	What to state
Stone grade	Colour and clarity range, plus the tolerance you will accept against the approved master sample (±1 grade is standard)
Metal and purity	Exact karat or silver fineness, alloy type, and whether white gold is nickel-free
Plating	Type (rhodium, 18K gold) and thickness in microns — a thin flash plating wears through in months
Dimensions	Band width, stone measurement, chain length, and the weight tolerance per piece
Setting method	Prong, bezel, channel or pavé — this single choice can double labour cost
Packing	Poly bag, box, pouch, tag, barcode label, and how many pieces per carton
Documents	Which certificates, and whether you need a material declaration or assay report

MOQ, lead time and payment terms

Our standard terms across the catalogue are straightforward, and they are the same terms we quote in writing rather than adjusting per enquiry:

MOQ — 10 pieces per design for stock specifications, 50 pieces for mixed-design lots. Custom development starts from 30 pieces per style in 925 silver and 10 pieces in gold.
Tiered pricing — list price to 49 pieces, about 8% off from 50 pieces, about 14% off from 200 pieces, and negotiated pricing above 500 pieces with reserved production capacity.
Lead time — 7–15 days for stock designs, 10–20 days for custom or certified production runs. Add 3–7 days for express transit to Europe and North America.
Payment — 30% deposit with the balance before shipment, by T/T, PayPal, Western Union or Alibaba Trade Assurance.
Samples — single samples ship at list price and the cost is credited against your first order above 200 pieces.
Quality guarantee — 30-day return window on stock items, and a written remanufacture-or-credit commitment if a parcel falls outside the approved tolerances.

Quality control: what happens before your parcel leaves

Buyers who have been burned before usually want to know exactly what inspection was performed. This is our standard sequence on every wholesale order, whether it is 20 pieces or 2,000:

Incoming stone grading. Every parcel is checked for colour, clarity and measurement against the order sheet before it enters the setting line. Rejected stones are pulled, not downgraded and used anyway.
In-process inspection. Setters check prong security, stone alignment and surface finish at each station rather than at the end of the line.
Final QC under 10× magnification. Polish, plating thickness, clasp and hinge function, and hallmark accuracy are verified piece by piece.
Cleaning, photographing, packing. Pieces are cleaned, photographed against your PO number, and packed in individual poly bags inside export cartons.
Document preparation. Commercial invoice, packing list, certificate copies and — where required — a material declaration stating that the stones are laboratory-grown.

You receive the photographs and the packing list before the parcel ships, so you can flag anything before it leaves rather than after it arrives.

Frequently asked questions

Can I mix metals and stone grades in one order?

Yes. You can combine 925 sterling silver, 10K, 14K and 18K gold in the same production run, and specify different colour and clarity grades per line. Every combination is confirmed on a single approval sheet before production starts, so there is no ambiguity about which line is which.

How consistent is grading across repeat orders?

Repeat orders are graded against the master sample kept on file under your account, which is why buyers who reorder regularly see far less variation than buyers who switch suppliers each season. Tolerances are written into the approval sheet, so a reorder cannot drift without your written agreement.

Do you provide photography for my online store?

Every catalogued design has front, three-quarter and macro imagery in sRGB at print resolution, named to match the SKU so the assets map straight into your product database. For orders above 200 pieces we photograph your private-label version at no additional cost.

What happens if the goods do not match the sample?

Send photographs and the SKU list within 14 days of delivery. If the deviation exceeds the tolerances on your approval sheet, we remake the affected pieces or issue a credit — this is covered by our written quality guarantee and applies to every order, not only the first one.

Related wholesale collections

Moissanite Supplier & Manufacturer — 210 ready designs, MOQ from 10 pcs.
Moissanite Rings — 222 ready designs, MOQ from 10 pcs.
Loose Moissanite Stones — 10 ready designs, MOQ from 10 pcs.

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.