Himanshu

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Viewing 15 posts - 46 through 60 (of 79 total)
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  • in reply to: Is This Cats Eye Gemstone Genuine or Synthetic? #5270
    Himanshu
    Participant

    Since the gemstone is studded in the ring it is diffcult to make out in the picture. If it is cat’s eye then there are limited possibility.

     

     

    in reply to: How to Identify Neelam (Blue Sapphire)? #5267
    Himanshu
    Participant

    @Satish Rawat,

    This saying is very untrue and rubbish. I can confirm this as I am gemologist. 🙂

    However, if you put cow’s pure milk on blue sapphire (neelam) and if it turns blue then consider your stone being dyed (treated). So, please don’t bother about these old sayings which we frequently encounter in India. What one should do is, to get their gemstone certified from a trusted gemological lab.

    in reply to: How to Identify Neelam (Blue Sapphire)? #5265
    Himanshu
    Participant

    @Abdul,

    I went through the website which you have suggested and I think it is authentic. However, I would also suggest you to look for your gemstone at ebay.com

    in reply to: Identify These Stones Please #5269
    Himanshu
    Participant

    From left to right, I think these are the following gemstones:

    1. Amethyst
    2. Dyed Howlite (a.k.a. Turquenite) (But, you can also get Turquoise in similar pattern.)
    3. Chalcedony (I don’t know if this can be amber. Needs testing.)
    4. Natural Glass (I also think it as Obsidian but it will require testing to confirm it.)
    in reply to: How to Identify Neelam (Blue Sapphire)? #5262
    Himanshu
    Participant

    @Azznaz,

    Looks like blue sapphire but cannot confirm unless instrument tests are performed.

    in reply to: How to Identify Neelam (Blue Sapphire)? #5259
    Himanshu
    Participant

    @Push,

    You haven’t mentioned the carat & clarity of your blue saphire. But however, natural blue sapphire can come as low as Rs. 100 ($2) per carat but their quality would not be appropriate for wearing on a ring.

    So, don’t worry about the price if you can afford it, worry about whether it is natural and untreated or not because the open market of sapphire is very complex as their are many treated, duplicate and fake stones in the market and many traders fail to identify themselves.

    in reply to: How to Identify Neelam (Blue Sapphire)? #5257
    Himanshu
    Participant

    @jwisan,

    In ZeeXchange website it is written Gemstone as Natural/Enhanced this means that gemstone is Natural but it is treated (enhanced). The treatment is not mentioned there but most likely it is either heat treated or diffusion treatment. These kind of treatment can even turn white sapphire into blue sapphire, so paying $3,200 for a treated 2 carat stone is not worthy.

    And, if someone is selling Ceylon Sapphire from Thailand then it is most likely heat of diffusion treated. Ceylon blue sapphires are actually mined in SriLanka so when you are purchasing Ceylon sapphire it should be untreated and its origin should be Ceylon, SriLanka, otherwise there is no use in buying a Ceylon blue sapphire.

    I would suggest you to go to ebay.com to search for your blue sapphire and please avoid sellers from Thaliand (Bangkok).

    I don’t know how trust worthy these ebay-sellers are but their blue sapphire looks pretty good for the price & quality:

    Himanshu
    Participant

    It is not possible to conclude this gemstone visually unless a thorough test is conducted. It is highly recommended that you get it tested by local gemologist.

    in reply to: In which finger Hessonite Garnet (Gomed) should be worn? #5242
    Himanshu
    Participant

    @Anand Reddy,

    There is a variety of garnet called Pyrope Garnet which is intense red in color and sometimes orangish-red and violet-red in color as well. Go to pyrope garnet page to get more info.

    I hope this is what you meant by Pyrobi.

    in reply to: Identify This Gemstone Please? #5271
    Himanshu
    Participant

    Picture is unclear so I cannot make out what it is. Can you post a clear picture?

    in reply to: How to Identify Neelam (Blue Sapphire)? #5255
    Himanshu
    Participant

    @ADK,

    The first lab created gemstone was made during 1890’s using a flame fusion process. Initially it was only used to make ruby and all color of sapphires but later it was used to create many other gemstones.

    Though, there were significanly very few lab created gemstones available in open market at the time of 1940’s but I would suggest you to get your gemstone lab tested.

    in reply to: Hi fellow enthusiast #5098
    Himanshu
    Participant

    Welcome Sheridan.

    I hope you enjoy discussing about gemstone with a small community here.

    My favorite gemstone is Emerald and I have rarely seen a large eye clean piece of it.

    in reply to: Rutilated Quartz or Glass? #5164
    Himanshu
    Participant

    Generally, rutilated quartz will have needle-like rutile crystals but it is also possible that rutiles are in form of small crystal without needle-like structure inside quartz. Rutile quartz will look something like this http://www.gemstonebuzz.com/sagenitic-quartz but not always.

    However, if you are sure that those “small bubbles” you saw were “gas bubbles” i.e. not liquid and solid then most probably it is a man made glass. Glass bubbles are also present in natural glass but since they are pricey it is not likely to be a natural glass.

    Are “tiny bubbles” which you saw through 10x loupe are all near to each other? If so, they can be fingerprints i.e., small crystal (solid) inclusions or liquid inclusions. Because normally (according to my experience), gas bubbles are scattered around at different places in gemstone. Gas bubbles also comes in different shapes (round, oval, elongated) and size (very small, small, large). But fingerprints generally stays in a group which are in almost similar shape and size.

    The hardness of quartz is 7 and it is not easily scratch-able. Also the hardness of man made glass is between 5-6. So, scratch doesn’t give a conclusive result. (But, if you had a sapphire and had a scratch in it then it most probably be a glass as sapphire has a hardness of 9).

    I have seen many man-made glass which imitates exactly like real gemstone. Glass is the best simulant for any gemstone.

    To get a conclusive result for this gemstone, a simple refractometer test will be enough. Just identify whether the stone is DR (i.e. quartz) or SR (i.e. glass) will dissolve your doubts. Refractometer is a must instrument for anyone who are in frequent purchases/sell/trade/lover of gemstones. Refractometer alone can distinguish almost 50% of gemstone simulants. More information at http://www.gemstonebuzz.com/refractometer

    The quality of picture does not do a justice for this lovely stone, if it is real one. 🙂

    in reply to: Please Identify These Green Stones? #5170
    Himanshu
    Participant

    It is really not possible to identify this gemstone accurately with those pics and description. It has to be manually inspected to find some surface markings and possibly to get some instrument tests.

    in reply to: Please Identify These Green Stones? #5167
    Himanshu
    Participant

    Can’t make out anything with those pics.

Viewing 15 posts - 46 through 60 (of 79 total)