Parcel Pricing — How Lots Are Valued at Wholesale
Parcel Pricing — How Lots Are Valued at Wholesale
The blended-price convention for melee, calibrated stones, and commercial lots
Parcel pricing is the trade convention in which a group of gemstones is sold for a single total price rather than priced individually per stone. The structure is the standard mode for melee — small diamonds or coloured stones below 0.20 carat — for calibrated commercial-grade material, and for any lot in which the stones are similar enough in size and quality that pricing as a unit is reasonable. The arithmetic is straightforward: a total price for the parcel, divided by the total weight of the parcel, gives an effective per-carat figure that the buyer uses to evaluate the lot against market norms.
Why parcel pricing exists
Pricing each stone individually in a 500-carat parcel of melee would be impractical: the time required to assess and quote each stone would exceed the value of the lot. Parcel pricing collapses the transaction into a single negotiation around an average. The seller absorbs the variance within the parcel — the slightly better and slightly worse stones — and the buyer pays a price that reflects the expected blend.
The convention works because the trade has stable expectations about parcel quality at standard price points. A buyer of commercial-grade sapphire melee at a given per-carat figure expects a recognisable blend of cuts, colours, and clarities, and the seller's reputation is shaped by whether the parcels delivered match those expectations.
Parcel pricing in practice
The seller weighs the parcel and quotes a price, either per carat or as a flat lot total. The buyer examines the parcel, may pull occasional stones out of curiosity, and decides whether the offered price is acceptable for the average. Negotiation typically focuses on the per-carat figure. Once the deal is struck, the parcel changes hands as a unit; the buyer cannot subsequently demand a refund for individual weaker stones, because the price already reflects the expected variance.
For grading purposes, parcels are sometimes accompanied by a parcel description that summarises the average quality — for example, Ceylon sapphire melee, 1.5 to 2.5 mm round, medium blue, eye clean, heated. The description establishes the buyer's expectation, and any material divergence between description and parcel content is grounds for renegotiation.
Cherry-picking and its costs
A buyer who wishes to select individual stones from a parcel — to cherry-pick — will typically be charged a higher per-carat rate, since the seller is left with the residue of less desirable stones at a less favourable average. Cherry-picking premiums of 20 to 50 per cent over parcel rates are common; the difference reflects the seller's loss of the parcel-blend efficiency.
In the trade
For Skyjems, parcel pricing is the standard mode for our melee and calibrated commercial-grade buying. The discipline involves accurate assessment of average quality under controlled lighting and clear understanding of where market parcel rates sit for a given material and grade. Buying at parcel rates and selling at per-stone retail is a major part of the value chain in coloured-stone retail.