im a bit confused ... how can most people know if the diamond has been "used"?

you typically buy jewelry with a diamond in it. the jewler could gave bought it new or pried it out of an old ring. How would you know ? (and why would anyone care?)

▲ jsmith99 4 days ago | parent | next [-]

It is not so much that used diamonds are worth less (although they might decline in value without provenance to prove they are natural or if they are chipped) but the huge markup on retail jewellery. It's easy for any member of the public to buy and sell gold at close to market price, it's much harder with diamonds.

	▲	nordsieck 4 days ago \| parent [-]
		> It is not so much that used diamonds are worth less (although they might decline in value without provenance to prove they are natural or if they are chipped) but the huge markup on retail jewellery. Precisely. And on top of that some jewelry stores are worried that customers would consider a below wholesale offer to be insulting, so they often refuse to buy piece back at all.

▲ chongli 4 days ago | parent | prev | next [-]

Jewellery stores have started supplying certificates of pedigree with diamonds they sell. This helps to reassure the customer that the diamond is not second-hand.

No one wants to buy used diamonds.

▲ dotancohen 4 days ago | parent [-]

  > No one wants to buy used diamonds.

Why not?

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thechao 4 days ago | parent [-]

The naturally clamp tightly to the spirits of the dead. Don't wanna be dragging your dead great aunt's ghost the night club.

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cantor_S_drug 4 days ago | parent [-]

Dude I am breathing dead carbon atoms of Hitler and Einstein. There is no such adverse effects.

	▲	javcasas 4 days ago \| parent \| next [-]
		You are obviously affected by this ailment called "science-based critical thinking". It is bad (for business) so you should consult an astrologist or a zen furniture arranger to seek remediation.
	▲	prerok 4 days ago \| parent \| prev \| next [-]
		Ooh, well, the next time I buy FreshAir (sorry Perri-Air) from Druidia, I'll make double-sure to check who breathed it before.
	▲	mec31 4 days ago \| parent \| prev [-]
		Of course, in your particular case, the Jesus atoms may outnumber the other two. So you’re probably good.

▲ fluidcruft 4 days ago | parent | prev [-]

Mostly because styles of cuts have changed.