B2B Diamond Trading Glossary
Plain, non-promotional definitions of the terms used across this site and in day-to-day wholesale diamond trading.
In short
This glossary defines the vocabulary of B2B diamond trading and demand matching: the business roles (dealer, wholesaler, manufacturer, broker), the stone attributes buyers specify (shape, carat, colour, clarity, certificate), the trade mechanics (memo, stock list, stale inventory) and the demand concepts used by BrilliantBot (buyer demand, buyer request, demand intelligence, inventory matching, matching criteria, monitored trading group, match notification).
- B2B diamond trading
- Buying and selling polished or rough diamonds between businesses — manufacturers, wholesalers, dealers, brokers and retailers — rather than selling finished jewellery to consumers.
- Buyer demand
- The stones a buyer is actively looking for at a given moment, usually expressed as a short written request rather than a formal purchase order.
- Buyer request
- A single message describing what a buyer wants to purchase, for example "looking for 1.00–1.20 round F–G VS, GIA". Requests vary in detail and are often incomplete.
- Demand intelligence
- Collecting, structuring and making searchable what buyers are asking for, so demand can be analysed and acted on instead of read message by message.
- Inventory matching
- Comparing the criteria of a buyer request against the stones a seller holds, and returning the specific items that satisfy those criteria.
- Matching criteria
- The normalised attributes used for comparison — typically shape, weight range, colour, clarity and certificate type — derived from what the buyer actually stated.
- Monitored trading group
- A dealer group the bot has been added to and can therefore read. Groups it has not been added to are outside its coverage.
- Diamond dealer
- A business that buys and resells diamonds, often holding stock on its own book and trading with other businesses in the market.
- Diamond wholesaler
- A dealer that carries a broader inventory and supplies other businesses such as retailers, jewellers and smaller dealers, usually in volume.
- Diamond manufacturer
- A business that cuts and polishes rough diamonds into finished polished goods, and then sells that production into the trade.
- Broker
- An intermediary who introduces buyers and sellers and is paid a commission, without necessarily owning the stone being traded.
- Shape
- The outline and cutting style of a polished diamond — round brilliant, oval, cushion, emerald, pear and so on. Usually the first criterion in a request.
- Carat
- The unit of diamond weight, equal to 0.2 grams. Requests normally state a weight range, such as 1.50–1.70 carat, rather than a single exact weight.
- Colour
- A graded scale describing how little body colour a diamond shows, commonly lettered from D (colourless) downwards. Buyers often ask for a range such as F–H.
- Clarity
- A graded scale describing internal and surface characteristics, using terms such as FL, VVS, VS, SI and I. Requests frequently specify a minimum acceptable grade.
- Certificate (grading report)
- A grading document issued by a laboratory such as GIA or IGI describing a specific stone. Buyers often restrict a request to particular laboratories.
- Memo
- A consignment arrangement in which a stone is handed over for a period without an immediate sale, remaining the property of the sender until it is bought or returned.
- Stock list
- A seller's structured record of available stones and their attributes. Matching can only consider stones that appear on an uploaded, current stock list.
- Stale inventory
- Stock records that no longer reflect reality because stones were sold, placed on memo or repriced. Stale records cause matches on stones that are no longer available.
- Match notification
- An alert sent to a seller when a live buyer request fits one or more of their stones. It signals interest to follow up on, not a completed sale.
Read next
- Diamond demand intelligence — the category these demand terms belong to.
- Diamond inventory matching — the attribute terms in use.
- Methodology — how these concepts fit together in practice.
- All resources
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