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  • #31
    Originally posted by StarryPearl View Post
    Turned out the source of the bright and dense purple color is from the hybrid with a third species of mussel. And there is a fourth species, and there is more... The commonly known Hyriopsis cumingii and Japanese Hyriopsis schlegeli hybrid is undoubtedly correct, yet dated. And there are intricate ways to regulate those mussels to create different colors and tones of pearls...

    I just need to confirm with my friend whether it would be appropriate/allowed to share more details in the forum. Stay tuned, friends.
    The purple color is not immediately attributed to genetics, insomuch as indirectly.

    Purple is the direct result of thin epithelii. In fact most bivalves in the animal kingdom have purple ridges along the periostracial margin. This is because not one, but two epithelii must occupy a minimal adjacent space. 99% of the purple patches on my pearls are from flat spots. Again, two sacs pressed together within the least possible space.

    When space is limited, there is no room for orient in a 3D world, instead the tablets of aragonaite lay nearly perfectly flat in relation to one another, hence the refracted color is nearest the violet end of the spectrum.

    Please remember pigments weakly or do not pass light. They occlude it. Superficial color is easy to spot as opposed to metabolic color. The properties are very different from one another.

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    • #32
      Interesting. I feel like the chocolate dipped plum pendant I bought recently from Kojima isn't as dark purple as I expected from the original glamour photos, but I chalked it up to the photos. It's still a beautiful pearl, but it's not as dark purple as I expected.

      I know a lot of people bought the dark Edison necklaces that PP was selling a few years ago. How have they held up? I never see anyone post photos of wearing those strands.

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      • #33
        Originally posted by Lagoon Island Pearls View Post

        The purple color is not immediately attributed to genetics, insomuch as indirectly.

        Purple is the direct result of thin epithelii. In fact most bivalves in the animal kingdom have purple ridges along the periostracial margin. This is because not one, but two epithelii must occupy a minimal adjacent space. 99% of the purple patches on my pearls are from flat spots. Again, two sacs pressed together within the least possible space.

        When space is limited, there is no room for orient in a 3D world, instead the tablets of aragonaite lay nearly perfectly flat in relation to one another, hence the refracted color is nearest the violet end of the spectrum.

        Please remember pigments weakly or do not pass light. They occlude it. Superficial color is easy to spot as opposed to metabolic color. The properties are very different from one another.
        Hmm, your theory is different from what I learned from the first-line insider with Edison pearls.

        Your reply to my post changed my mind. I didn't expect those answers and info could get denied here before even heard. That's fine. Saved me trouble to ask for permission to share more details. Stick to your theory. I shall stay clear from this topic now. Never mind.
        Last edited by StarryPearl; 12-14-2021, 07:16 PM.

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        • #34
          Grace staff were all told repeatedly, for years, that the colour was fully natural. The GIA investigation now shows that it was. For some pearls. Other pearls got helped. Why did Grace give the GIA the samples? No idea?
          Author:Pearls A Practical Guide published by Crowood Jan 2021
          www.pearlsapractical.guide

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          • #35
            Originally posted by StarryPearl View Post

            Have to say technologies develop fast and things "said over and over" are simply repeating themselves year after year. One person's marker pen doesn't explain the natural purple color pearls - or, was s/he being sarcastic ?
            In your post you mentioned feeding mollusks pigment to turn pearls Jewel Tones. The hucksters on facebook pearl parties said this was how their obviously dyed Jewel tone and Skittle candy color pearls were grown. If you google skittle pearls they are easy to find on line. One seller couldn't get skittle color pearls in the shell their customers were demanding so they used a set of permanent marker to make their own when the pearls opened didn't produce the colors customers requested. Yes, they showed it.

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            • #36
              I just heard back from one of the authors of the GIA report. They have the pearls stashed in the dark and will be re-examining in due course.
              Author:Pearls A Practical Guide published by Crowood Jan 2021
              www.pearlsapractical.guide

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              • #37
                Originally posted by Luvglitz View Post
                Recently, I was deciding on a strand of pearls to wear. My eye was drawn to my “Holy Grail” large freshwater pearls.which I hadn’t worn in quite some time. I almost didn’t recognize them. Although still lustrous they were meh. All the purple shades had faded and now showed mostly peach and pink. Now I understand why.
                That's a real shame ! Im sure under the circumstances you could return them no matter if it's been a few years. No seller wants a customer to buy something that won't last and have wasted their money I'm sure they thought there was no problem. It's just been the past few years that it was made clear to the industry that the pearls were dyed.
                https://www.instagram.com/pearlzaustralia/?hl=en
                https://www.etsy.com/shop/pearlzaustralia

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