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9.03CT.NATURAL SUNSTONE CABOCHON
PRODUCT ID: SS002
SIZE(WxLxH): 11.7 X 15 X 7.2MM
COLOR: AS PICTURE
TREATMENT: No Treat 100% Natural
HARDNESS(Mohs scale): 5.5-6
:: I only use Poslaju, Please allow to add (RM8 for SARAWAK) ,(RM10 for SABAH) and (RM10 for WestMalaysia)
:: Tracking number will be provided once posted.
:: Allow 4 business working days to arrive within Malaysia,Not Including Holidays and frist Saturday
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YOU MUST CONTACT US FOR DETAILED RETURN INSTRUCTIONS.
You may return any item as above refund within 3 days of receipt!
The item must be in original condition. We cannot refund damaged items. 30% RESTOCKING FEES!
Shipping cost is Non-refundable! Allow us take 1-2 days for us to check the items carefully. Refund will be given as FAST as we can
"HEATED.Heat treated on the rough stones to improve color, remove purple tinge, blue patches and silk. These heat treatments typically occur around temperatures of 1800 C (3300 F).Some gemstone undergo a process of low tube heat, when the stone is heated over charcoal of a temperature of about 1300 C (2400 F) for 20 to 30 minutes. The silk is only partially broken as the color is improved.
Lead Glass Filling. Filling the fractures inside the GEMSTONE with lead glass (or a similar material) dramatically improves the transparency of the stone, making previously unsuitable GEMSTONE fit for applications in jewelry.The process is done in four steps below:
1. The rough stones are pre-polished to eradicate all surface impurities that may affect the process
2. The rough is cleaned with hydrogen fluoride
3. The first heating process during which no fillers are added. The heating process eradicates impurities inside the fractures. Although this can be done at temperatures up to 1400 C (2500 F) it most likely occurs at a temperature of around 900 C (1600 F) since the rutile silk is still intact.
4. The second heating process in an electrical oven with different chemical additives. Different solutions and mixes have shown to be successful, however mostly lead-containing glass-powder used at present. The gemstone is dipped into oils, then covered with powder, embedded on a tile and placed in the oven where it is heated at around 900 C (1600 F) for one hour in oxidizing atmosphere. Like orange colored powder transforms upon heating into a transparent to yellow-colored paste, which fills all fractures. After cooling the color of the paste is fully transparent and dramatically improves the overall transparency of the gemstone"
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