Diamond Master Pricing
Diamond master pricing keeps diamond rates as structured records by shape, size, colour and clarity that products reference instead of a manual figure.
Diamond master pricing stores stone rates in a structured table rather than in each product. Rates are organised by the attributes that actually drive diamond value, shape, size, colour and clarity, and a piece points to the matching master record instead of holding a typed number. Update the master, recalculate, and the new rate flows to every design that uses it.
Why diamonds need a master, not a typed price
Diamond value is not a single number. A 0.30 carat round of F colour and VS1 clarity is worth far more than the same size in J colour and I1. A jeweller who types a per carat rate into each product ends up with hundreds of scattered figures that no one can keep current.
A master table captures the rate once per attribute combination. A row might read: round, 0.30 to 0.39 carat, F, VS1, at a set rate per carat. Every ring, pendant or pair of earrings that uses a stone in that band references that one row, so the rate lives in a single, maintainable place.
How a master rate reaches a product's price
When a product is priced, the system reads the diamond's attributes, finds the matching master row, and multiplies the rate per carat by the stone's weight to get its stone value. That stone value then joins the metal value and making charge in the overall calculation.
A pendant holding a 0.25 carat stone at a master rate of 60,000 rupees per carat carries 15,000 rupees of stone value. The gold and making charges are added around it. Because the pendant only stores a pointer to the master, not the 15,000, changing the master rate reprices the pendant automatically.
Consistency and traceability at scale
The payoff is consistency. Two products with identical diamonds are always priced with the same rate, because they read the same master. There is no risk of one designer using an old figure while another uses a new one.
It also gives traceability. When a customer or an auditor asks why a stone was priced a certain way, the master row shows the exact shape, size, colour and clarity band and the rate on the day. Benchmarks such as the Rapaport list often feed these masters, with the jeweller applying their own discount to Rap before saving the rate.
- Diamond rates live in structured master records, not in each product.
- Records are keyed by shape, size, colour and clarity.
- Products reference a master, so updating it reprices every user at once.
- It gives consistent, traceable stone pricing across a large catalogue.
Diamond Master Pricing, in short.
What attributes should a diamond master be organised by?
The four that drive value: shape, size or carat band, colour grade and clarity grade. Together these define a rate per carat that every matching stone in the catalogue can share.
How does a master rate become a product's price?
The rate per carat from the matching master row is multiplied by the stone's carat weight to give its stone value, which is then added to the metal value and making charge in the full price.
Where do the master rates come from?
Many jewellers base them on a benchmark such as the Rapaport price list, then apply their own percentage discount to Rap and save that figure as the master rate for each attribute band.
Related terms
See diamond master pricing inside a real jewellery system.
JewelleryOS keeps product, pricing, stones and orders in one connected place, built for how jewellery businesses actually work.