Hi airdancer,
I am sure the second strand is Akoya and although it is basically white it does have overtones that shimmer and shine thru.
The First strand is suppose is akoya but I don't know. I will have my camera working again in 24 hours or so and I will take some better photos of it. The pearls in the first photo are truly stunning but the photo doesn't show them properly at all. The woman I bought them from had a ring with an even larger about 12 mm matching pearl, set in gold and diamonds. I suppose the owner cut back on the clasp on this necklace to lash out on the ring. But she wanted an arm and a leg for the ring and these I picked up very reasonable. I suppose because they were set in silver with marquasites she had downgraded them in her mind. Her mother-in-law brought them back from Germany. They used to travel the world so I guess they had money
The seller didn't seem to know a lot about pearls and put much more stock by the ring because of the gold and diamonds. I was just very happy to the necklace.
Will post more photos of it when I get my camera going. Exact sizes etc. But I think it is one of my very favourites, amongst my top 6 anyway.
Bodecia