Why this category matters
Not every jewellery enquiry is a ready buyer or seller, but estate jewellery owners often start by item type before they know how valuation works. This page explains what details affect a specialist review.
What to document
Record metal stamps, centre and side stones, certificates, receipts, designer marks, condition, missing stones, repairs, and clear photos. A pair of diamond studs needs different assessment from a signed estate ring.
How Prodiam should be positioned
Prodiam can be presented for estate jewellery and certified diamond conversations, not as a generic catalogue for every jewellery query.
Decision table
Use the details, not a shortcut.
| Jewellery type | What to document | Valuation note |
|---|---|---|
| Diamond earrings | Matching, stone count, metal, posts, certificates | Pairs are judged on matching and condition |
| Diamond studs | Stone size, colour match, backs, certificates | Small differences can affect pair value |
| Diamond necklace | Stone quality, chain condition, clasp, brand marks | Workmanship and metal condition matter |
| Tennis bracelet | Stone consistency, links, repairs, clasp security | Missing or replaced stones change value |
| Estate ring | Centre stone, side stones, provenance, repairs | Certificate and condition anchor the offer |
Direct answers
Common questions
Can estate jewellery be valued without every certificate?
Yes, but certificates, invoices, and clear provenance usually make the discussion cleaner.
Are earrings and bracelets valued like engagement rings?
No. The number of stones, matching, metal, condition, brand, and resale demand all matter.
Should every jewellery item be treated the same?
No. The useful approach is estate jewellery education and specialist referral, not generic catalogue shopping.