1.60 ct Gorgeous Top Color IF Natural Tanzanite Certified

Item Information

Dimensions (mm) 8.44 x 6.47 x 4.24mm
Weight (carats) 1.73 carats
Certified Gemstone

TNZ 647

Note: We combine shipping. Each additional stone is $0.50 ($1 for a piece of jewelry). Since Gemrock doesn’t provide this option and charges the full shipping price for each item, please ask us for a total invoice.  

Important Notice: PayPal announced its new policy: Starting May 9, 2019 in case of returns it would not refunds its fees (about 5%). Please contact us about payment options. Thank you.

As for pictures. If a stone is tanzanite, you can photograph it 10 times in different positions/angles/with different background, etc. and get 10 different pictures. I added picture of a oval lot. Regardless of shape all stones are approximately like those in the lot.

I list only IF - very rarely IF-VVS clarity Medium Dark - similarly very rarely Medium-Medium Dark stones. All stones are top quality. A bit darker/lighter; a bit more/less violet or blue but all are equal. Nobody can say looking at the picture which one is darker/lighter, more bluish or more violetish. Even specifications will not help much. All IF are IF and I cannot put in specifications something like percentage of blue and/or dark. The best you can do is contact me and say: “I need oval/pear/cushion/etc. real dark/not too dark/better Medium than Medium Dark 1+ ct/under 1 ct rich Violet Blue/more Blue stone.”

  1. We are a company of gemologists and collectors. My partner is a great gemologist and a professor of gemology. I received my gemology diploma in 1978 and in 90th worked with a team of the best gemologists in Thailand trying to identify (then unknown) treatment of Mong Hsu Rubies. We’ve been selling privately, at gem shows and on eBay for decades. In 2007 we founded our first company MVM Custom Jewelry and MVM Gemological Laboratory (now ES Gems/ES Gems Gemological Laboratory). We have quite extensive experience but we are very new here and we cannot understand many things. Sorry, if our questions will seem naive.

  2. We are familiar with A – AA – AAA – whatever number of A’s grading system and saw many reputable companies using it. The problem is: more often than not it is nothing more than subjective opinion of a seller. I am an old school and I want to see Hue, Tone and Saturation and not guessing what color a seller likes. Sorry, but for a professional these AAAAA’s look like “A!.. AA!!.. Ouch! AAA!!! What are you doing? Stop it!!!”

  3. Why people want certificates when a stone is Tanzanite? I never buy non-certified corundum (rubies and sapphires) even though it will not take me long to check if the stone has air bubbles, comet tails, etc., but Tanzanite? To make sure that the stone is natural? There are imitations but there are no synthetic tanzanites. Anyone who dealt with many stones can briefly look across the room and say what is the stone on the table. And any child can use digital refractometer. To know if a stone is really unheated as some sellers state? All Violet/Blue tanzanites are heated, they are brown in natural state. Some seller just write “Unheated,” more knowledgeable say “Naturally (by Mother Earth) heated.” Possible, but no lab can say who or what heated a stone. Hope to see “Block D” in certificate? Merelani mine has four blocks – A, B, C, and D. Initially Block D produced the best color stones but it was in 1967. Now there is absolutely no difference between stones whatever the block produced them. It is one and the same mine; one house with 4 doors. And it is ABSOLUTELY impossible to determine from which block any particular stone came. By special request we can provide you with certificate of your choice. You want it states “AAAAA (please specify the number of A’s you want) Unheated D-Block?” No problems. But please, PLEASE never show it to anyone; I don’t want to spend the rest of my life in mental hospital.

  4. Why people (not on Gemrock yet) ask us if they will receive exactly as on picture stone when a stone is tanzanite? Naturally trichroic, tanzanite shows different colors when viewed through each of its three crystal axes: blue, red-violet and yellow-green and that’s why the same stone may show the different colors on pictures. Camera sees it only from one static position). Then a color alters by the camera’s filters. But it is only the beginning. At least at the moment we list stones from one very special parcel. All stones from this parcel have exceptional brilliance and glow. Now we are speaking about dispersion (separation of compound light).  

Sorry, it was long. But it is a macro and if you read it once you don’t need to read it again.

Shipping: We combine purchases. Please notify us if you are going to bid on another stone or lot and ask for a total invoice when you are done shopping. Shipping is $6.95 domestically (USA) and $29.65 internationally (this is exactly what we pay not to mention cost of shipping materials and salary we pay to our shipping lady). We don’t charge extra for additional stones/lots. International buyers are responsible for all duties and taxes. We ship USPS domestically and Registered Mail internationally. At your request for the additional price we can use other method of shipping and/or add insurance.

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Pricing & Details

Bid Increment $1
Starting Bid $207
Auction ID 926935
Watchers 2 watching
Viewed 89 times
Starts 14th Jun 2019 6:00pm PDT
Ends 17th Jun 2019 6:04pm PDT

Shipping & Insurance

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Standard Shipping - Tracked $29.95 23 Days
Shipping Insurance all providers $0.00 (optional)

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