BLUE TOPAZ Vintage Sky Blue Faceted Oval gemstone 21.74 cts fgs125

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BLUE TOPAZ Vintage Sky Blue Faceted Oval gemstone 21.74 cts fgs125

Details

A stunning 21.74 carat vintage blue topaz gemstone that we had custom cut for us from rough acquired in Sri Lanka in the late 1970s. It measures 20x15x11 mm - perfectly calibrated for easy setting. The stone is flawless to the unaided eye ("eye-clean") and is super-brilliant, with cutting far superior to what you will find these days in the commercial marketplace.

Gemstone nomenclature can sometimes be confusing, but confusion seems to be the general rule when it comes to topaz, the birthstone for November. Topaz is a colorless mineral composed of hydrous aluminum silicate. It forms wonderful and often perfect crystals, sometimes of gigantic size (more than 100 kilograms). Traces of impurities produce various hues, including dark brown (from Russia), light yellowish brown (Mexico and Utah), green, blue, pink, red, and a huge palette of yellows and oranges. Of these, ONLY the yellow and orange varieties from Ouro Preto, Brazil are considered "precious topaz". If this material contains a trace of chromium, a pink or reddish coloration is produced that can be very intense - this material is given the unique appellation "Imperial topaz".

Gemstone dealers have, for many years, added the word "topaz" to much more common and less expensive stones, intending to thereby give these gems enhanced "status". The best example is "smoky topaz" (which is actually 'smoky' quartz), or "citrine topaz" (orange quartz). This is basically a false or misleading trade practice, but it has become so pervasive in the gemstone marketplace that its consequences are largely ignored.

Topaz is extremely hard - number 8 on the Mohs hardness scale - versus 7 for quartz and 9 for ruby and sapphire. Topaz has perfect cleavage so care must be taken when it is worn in rings, but the stone seems to hold up well in jewelry. Red and pink are the most prized and expensive topaz colors, with large fine stones reaching several thousand dollars per carat at wholesale. The more familiar yellow and orange variety known as "precious" topaz varies in price with hue and depth of color, the darkest pure oranges being the most valuable.

Natural blue topaz exists and is extremely rare and costly. In the 1970s a process was discovered for turning colorless ("white") topaz blue with a combination of irradiation and heat. The first stones produced in this way were bombarded with electrons in a cyclotron, producing a "sky" blue color. More energetic radiation turns colorless topaz brown, and heating changes this to blue, in a variety of shades that have been given such fancy names as "London Blue", "Swiss Blue", "Superblue", etc.

Blue topaz has become one of the most popular gemstones in the jewelry trade.

The price is for this one faceted gemstone, and we guarantee it to be natural vintage topaz that has been treated to produce the blue color. The shipping cost includes insurance.

One of the photographs shows one of the several books that Joel has written. The Color Encyclopedia of Gemstones has for more than 30 years been the world's most authoritative source of information on (and pictures of) gemstones. We want you to be assured that you are buying from one of the world's leading experts in the field. (Books not included in purchase).

Product Attributes

Color: Blue

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Shipping

All Other Countries
First Item: $20.00
Additional Items: $1.00

Canada
First Item: $12.00
Additional Items: $1.00

United States
First Item: $10.00
Additional Items: $1.00

Policies

We try to ship (First class) within 72 hours of receiving payment. Insurance will add a bit more depending on the value of your purchase.Our products ship first class mail and Priority Mail in the USA and First Class international.
If the customer wishes to have tracking and insurance for international orders,the package must be shipped either Express or Priority mail. Please contact us for such estimated shipping costs.
We cannot be responsible for shipments lost in transit unless insured by the customer.

**We automatically insure DOMESTIC packages if they're $100 or more! All such packages have a tracking number and normally ship USPS First Class *** Priority mail is $7.50 FOR UP TO 1 lb. of merchandise.
For international shipping of higher value items, please contact us for a shipping quotation.

IMPORTANT NOTICE: POSTAGE RATES HAVE RISEN DRAMATICALLY IN 2016
ORDERS INSIDE USA: A charge of $3.60 covers any first class shipment up to 8 ounces. Our beads vary so much in weight that it is impossible for us to apply a single add-on charge for multiple product orders. We will continue to refund to customers any amount that greatly exceeds our actual cost of shipping and handling.
ORDERS OUTSIDE USA: International First Class rates are now crazy: $13.50 for any package weighing from 1-8 ounces. Even an order for 2-3 small bead items may cost $13.50 or more, depending on the type of material (stone versus resin, for example). Please bear with us for a few weeks while we change our listings to account for the new rates. We apologize in advance if we have to adjust the postage cost of an order that has been placed. We will understand if an order is rescinded when the postage cost is too high relative to the product value.

All international orders have contents described as "loose beads" and are flagged as "commercial samples" or " gift" if you prefer to make your life easier when receiving your beads. If you'd like us to mark your order as " gift" instead please let us know!

All our beads are inspected one by one before being shipped. They are individually wrapped to protect them and then put in little plastic ziploc bags.

All vintage beaded jewelry is either shipped in a little gift box tied with a ribbon or in a vintage Chinese embroidered silk purse.

If you ever have a problem with a damaged bead or jewelry, don't hesitate to contact us. We are only human, and with so many orders going out on a daily basis, there is always room for error. We will replace your order (assuming we have more in stock), issue you a store credit, or give you a full refund if the item is returned in the same condition as it was shipped within 7 days of receiving your order if you are not fully satisfied. You must notify us as soon as you receive your order if there is a problem.
We want you to be 100% thrilled with your purchases!

We value each and every customer and are delighted that you have chosen to shop in our store! Customer relations are extremely important to us and we pride ourselves on the authenticity of what we sell, how we package it, and being accessible to all of you should a question or a problem ever arise.

Thank you - Debby and Joel Arem

Reviews

mojogirl58 on Sep 24, 2016
5 stars

Nice beads!! Super fast thanks a lot!!!
Patron292488 on Jun 22, 2015
5 stars

I have dreamed of having a necklace such as the jade one. But the red one. That was a surprise. Both are beautiful. Thank you! Best, Jane
Patron129202 on Feb 19, 2015
5 stars

Lovely color;!interesting stones.
Patron249228 on Apr 5, 2014
5 stars

When I thought that I had ordered two of these and then checked out I had to order another set. The seller was very kind and combined my two orders and refunded my shipping.
Patron249228 on Apr 5, 2014
5 stars

Nice quick shipping on some hard to find items! Good packaging too!

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