VINTAGE GEMSTONE SPHENE Faceted Round 4.22 cts fg137

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VINTAGE GEMSTONE SPHENE Faceted Round 4.22 cts fg137

Details

Vintage sphene, a round brilliant cut 10.0 mm faceted gemstone weighing 4.22 carats.

Sphene, more properly known as titanite, is a brilliant yellowish-green, green or brown gemstone with dispersion that exceeds that of diamond. Dispersion is the capacity of a gemstone to separate white light into its component colors, like a prism. The separated light rays travel through the gem along slightly different paths, emerging as distinct colors when they reach the observer's eye. This phenomenon produces the "fire" that makes diamond so attractive and desirable. The dispersion of titanite is about 20% higher than that of diamond, creating a spectacular display of bright colors. Proper cutting is required to optimize this effect.

The mineralogical name "titanite" derives from the material's composition, calcium titanium silicate. Sphene is a relatively soft gemstone (5.5 on the Mohs scale, about the same as opal) and is therefore best suited for pendants, earrings or brooches, and not for rings. This stone has minor tiny nicks on the girdle but these are not readily seen without magnification.

Much of the sphene that reaches the market has a strong body color (commonly green or yellowish-brown) but has not been cut properly and therefore lacks fire. Heavily included material also lacks a strong play of colors because the imperfections interrupt the light traveling through the stone.

This particular stone is from Baja California, Mexico. It is a rich green color and is nearly eye-clean. The cutting is near perfect, with no 'window' to leak light out the back of the stone, and the proportions and cutting angles were designed to maximize the gem's spectacular display of fire. The stone appears either yellowish or greenish under different light sources.

Sphene is quite rare and only in recent years has enough been mined to serve the modest (so far) needs of commercial market demand. Price is a function of color, clarity and size, and truly clean stones over 1-2 carats are hard to find. The price is for the one faceted sphene, which was mined in Mexico in the 1970s. The shipping cost includes insurance only within the U.S.

Materials Used

sphene,titanite,faceted gem,gemstone,dispersive stone,round cut gem,round brilliant gemstone,faceted gemstone,cut stone,round faceted gemstone

Product Attributes

Color: Grey

Accepted Payments
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Shipping

All Other Countries
First Item: $6.50
Additional Items: $1.25

Australia
First Item: $6.50
Additional Items: $1.25

United Kingdom
First Item: $6.50
Additional Items: $1.00

Canada
First Item: $6.50
Additional Items: $0.75

United States
First Item: $3.00
Additional Items: $0.40

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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