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Stone Type:      Natural Chameleon Diamond (Please see Comments on the attached certificate)
Color:      Chameleon Diamond
Shape:     Pear
Origin:     South Africa
Treatment:   None  

   
o understand more about Chameleon Diamonds you may read the GIA Article at the following link.

 https://4cs.gia.edu/en-us/blog/colored-diamonds-mysterious-chameleon-diamonds/

What Is a Chameleon Diamond?

Under normal conditions, the color of chameleon diamonds is typically grayish yellowish green to grayish greenish yellow. But, when heated up to 150° C (302° Fahrenheit) — or exposed to light after prolonged storage in the dark — a remarkable color change happens. Chameleon diamonds temporarily turn an intense brownish or orangy yellow to yellow color.

Some of these extraordinary colored diamonds have displayed color change for more than 15 minutes after being exposed to an ultraviolet lamp for just 60 seconds. Some emit a yellow glow, or phosphoresce, for up to an hour after the light source is turned off.

Why Does a Chameleon Diamond Change Color?

What makes chameleon diamonds so mysterious is that the reason for their color change is unknown. Since chameleon diamonds change color when exposed to light or heat, there may be more than one mechanism at work causing the phenomena. Additionally, as they are so rare and valuable, researchers have found it difficult to procure samples to study.

How Rare Are Chameleon Diamonds?

It’s hard to say. Earliest mention of a color-change diamond dates back to 1866 by Georges Halphen, a Paris diamond merchant. The term ‘chameleon diamond,’ was first used to describe these color-change diamonds in the jewelry trade in 1943. One story from the early 1970s is about a customer who purchased a light yellow green diamond. Once he took it out of his jewelry box, he noticed that the diamond was now dark green. He returned the diamond for a refund. One can only imagine how many other chameleon diamonds camouflaged themselves from collectors
To Check more from our Store please visit the store link below:
https://www.gemrockauctions.com/stores/preciouscarats
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ABOUT US
We deal in Natural Earth Mined Gemstones only. Any treatments are fully disclosed. Having been in the business since 2002, at Precious Carats, we strive to work towards a fully satisfying customer experience with full honesty.

GEMSTONE CERTIFICATION
We fully stand behind the Authenticity of our gemstones. Therefore, Customers can feel free to ask for authenticity certificate on any gemstone from any of the GemRockAuctions approved gem labs in Bangkok, Thailand. The certificate fee will be charged to the buyer depending on the lab without any mark up on top. 

BUYING OR BIDDING ON MULTIPLE ITEMS - COMBINING SHIPPING
You may buy or bid on Multiple items. Combine As many items as you want during the 5 days period and pay one time for all the purchased items. If you are a new customer to our auctions, kindly drop a message of your intent to combine shipment. 

SHIPPING TERMS AND CONDITIONS
We offer Following shipping options

1. Standard Shipping : The Carrier for Standard shipping is chosen by us, depending on the country of the customer.

 For Example to name a few:
i) For USA, Canada: via USPS US$8.99, 14-28 business days. Trackable USPS.com 
iI) For Australia, Europe, Japan Singapore: Thailand Post. US$8.99 via first-class registered airmail, 14-28 business days.Trackable Thailand Post website.

2. Federal Express, US$34.99, 3-5 days, trackable on FeDex website.

Note: We Ship Within 1 business day of receiving the payment. All items are securely packed and sealed. We will send you the tracking number as soon as the item(s) is shipped. We are not responsible for any delays due to customs clearance or unforeseen delays by the shipping companies. Currently, delivery times may be impacted by Covid-19 restrictions.


 IMPORT DUTIES AND TAXES
We do not have any control over duties and taxes in the buyers respective country. Therefore, any import duties, other duties and taxes if any are the responsibility of the buyer.

7-DAY RETURN POLICY
We offer a 7 day inspection period (on arrival) for all of our gemstones. If you are not satisfied, you may notify us and ship us back the gemstone(s) within the 7 day inspection period, with a proof of shipment. Once received by us, we guarantee a full refund of the price paid for the gemstone(s). Please note that the buyer is also responsible for return shipping expenses.

FEEDBACK AND SATISFACTION POLICY
Our Goal is to have fully satisfied customers. If for any reason you are not satisfied with the product, please let us know. Please allow us to resolve any issue you may have before leaving neutral or negative feedback.