Greenhills is such an interesting place; but always shop with caution. I remember several years ago (when I did not know anything about pearls), I was sold a pair of "baby South Sea" pearl studs for something liks US$150. It was a gift for my cousin. Now I know (on hindsight) that they were 10mm Chinese freshwater pearls that are probably a couple dollars each. The "baby South Sea pearl" is still an on-going unscrupulous practice (scam) in Greenhills. I admonish the sellers when they pass off "baby SSPs". I tell them that it is incorrect to pass of FWPs as "baby south sea". Most of them will just nod or even apologize, but some will argue it out saying that it is common practice to use the term "baby south sea" for the larger "quality" Chinese FWPs. I counter that it is an unscrupulous practice saying that south sea is south sea and freshwater is freshwater, period. They should disclose the correct classification to their sellers. Unfortunately, the practice continues. My other pet peeves are the fact that they use the term "Mikimoto" for akoya pearls, and that they use the term "Tahitian South Sea Pearls" for tahitian pearls. They also avoid saying "Chinese" or "China" when you ask them what type or from where are their freshwater pearls. There are, of course, other sources of FWP like Bangladesh, however most of those being sold in Greenhills are definitely Chinese in origin. My biggest pet peeve is that they say that FWP are produced in the Philippines. This is a big misconception and it is being perpetrated by Greenhills sellers and other jewellery sellers. In the "Filipiniana" (local souvenir) section of a big department store like "SM", I see Chinese pearl strands and earrings that are labeled "Freshwater Pearl - Product of the Philippines". When I quiz the sales staff and tell them that we do not produce freshwater pearls they insist that we do produce freshwater pearls, particularly in Palawan. That is why some people get shocked when I tell tell that we do not produce freshwater pearls; we produce south sea pearls.
I guess part of this misinformation stems from the fact that locally produced South Sea Pearls are not very visible. The main reason is that they are quite valuable relative to FWP, so the latter is more marketable and within reach of the general populace. I was able to talk to the owners (company heads) of two large south sea pearl farms. One has their farm in Mindanao and he says that most of their output is sold to Japanese and European bulk buyers. The low quality "rejects" are sold to a couple of local dealers. These pearls eventually end up with local jewellery outfits (mostly in Meycauayan, Bulacan - the jewellery-making capital of the country) and with the Greenhills sellers. The other pearl farm is located in Palawan. Since the company is also a high-end jewellery retailer, the best quality pearls from the farm are used to make fine jewellery pieces. The rest are sent to their sister company in Hong Kong. The low quality pearls are also sold to a dealer who supplies the Greenhills sellers. Most of the Philippine pearl farms' output are sold by bulk to foreign buyers. This is more convenient for them. However, Jewelmer and Hoseki are vertically integrated that some of the pearls from their respective farms end up in their showrooms.
An interesting Greenhills development I've observed lately is that there are sellers that are offering Australian SSPs. I encountered a couple of stalls that have white Australian SSP strands. They looked like A+ or AA quality pearls priced north of US$5,000.00. I also see better quality Tahitian pearl strands. I guess the market is asking for better quality pearls and that the suppliers of Greenhills are getting more sophisticated.
Greenhills is still a fun place. However always shop with caution. Ask questions and bargain. It hepls to do your homework or bring someone who knows about pearls.