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Fissure filling in all kind of gems that used to be untreated

Anne111

Shiny_Rock
Joined
Nov 30, 2017
Messages
302
I've become a rather obsessive follower (not much buyer) of catawikis gemstone auctions. Over the last months I have increasingly noticed that lap reports for all kind of gems like tsavorites, tourmaline, spessartite, kunzite, opals, etc etc aside the usual suspects of emeralds, ruby, sapphire, jade, note 'fissure filling with this-that for clarity enhancement". Especially from the Spanish lab but also others.
Is this a new thing, or simply higher alertness in the labs?
Or is it just the lapidary wiping his gems with an oily cloth after cutting?
 

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chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,004
Clarity enhancement (fissure filling) has been on the rise the past 10 years as nice material are getting fewer.
 

arkieb1

Ideal_Rock
Premium
Joined
May 11, 2012
Messages
8,555
The Chinese are fissure filling and treating the bleep out of everything these days, I'm in Australia so I've seen treated just about every kind of stone - even the ones I would have thought were inexpensive enough that it wasn't worth bothering, and yet they mess with those too...
 

ChaiK

Brilliant_Rock
Joined
Jun 8, 2018
Messages
826
The Chinese are fissure filling and treating the bleep out of everything these days, I'm in Australia so I've seen treated just about every kind of stone - even the ones I would have thought were inexpensive enough that it wasn't worth bothering, and yet they mess with those too...
There are rogue traders everywhere. It isn't just the Chinese.
 

ChaiK

Brilliant_Rock
Joined
Jun 8, 2018
Messages
826
No politics here, I know, but it seems obvious that 'globalization', on which this trade depends, has lost its strongest supporter and turned into the opposite. I read a few articles in which big jewelers, pandora, bulgari, and I think it was graff, reported downturns since 2016.

Other possibility would the rise of yet undetected treatments that make all ducks look great (see the other thread).

Perhaps it's both. And yet prices for good quality are rising anyways.
Or did you feel prices got stuck in HK?
Thought it best to reply about the treatment issue here.

Yes. I was going to say there could be new undetectable treatments.
 

IcePhoenix

Shiny_Rock
Joined
Feb 15, 2019
Messages
195
The Chinese are fissure filling and treating the bleep out of everything these days, I'm in Australia so I've seen treated just about every kind of stone - even the ones I would have thought were inexpensive enough that it wasn't worth bothering, and yet they mess with those too...
What stones and what kind of treatment?
 

LisaRN

Ideal_Rock
Premium
Joined
Nov 1, 2007
Messages
3,064
I think it was last year that I saw a red spinel online with a lab report that listed "oiling" under treatment. This surprised me at the time because spinels had traditionally been considered stones that were untreated. With a large online marketplace where stones are offered on Etsy, IG, Ebay, etc., it makes sense that sellers will try to sell their treated stones to those in the market for a specific gemstone as supply for these gemstones dwindle. We as consumers are paying more for these stones now, and many times insisting on a lab report before purchase. So maybe they have been treating them for longer than we knew.
 

Arcadian

Ideal_Rock
Premium
Joined
Sep 17, 2008
Messages
6,283
Does anyone know if peridot is being treated? its in general dirt cheap until you start talking about larger Burmese pieces.
 
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