Blog
Guides for diamond and jewellery businesses
Practical how-tos on pricing, stock, memo, manufacturing and running a gems business, from the team behind E-Ratna.
How to Calculate a Rapaport Discount (With Examples)
What "minus 35 back" means, how to turn a Rapaport list price and a discount into a net price per carat and a stone total, with worked examples.
Tunch and Melting Loss: Measuring Karigar Gold Loss
How to work out fine gold issued and received, the loss in grams and percent, and how to set a fair allowed loss for karigars and melts.
Diamond Memo and Consignment: Tracking Goods Out
How memo works in the diamond trade, what to record when goods go out, and how to handle partial returns, sales and overdue memos without losing stones.
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