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RUBY STONE FROM MADAGASCAR 4.4 CTS [PS140 ]

6995
7

Artikelnummer
Abmessungen (mm)
x x mm
Gewicht (cts)
Certified Gemstones
NEIN
Farben

IMPORTANT NOTE: This item contains fissure filled cavities that may contain glass, cobalt, or other materials. Due to the presence of these materials, this item should be referred to as a composite stone.

                                                                              sedagems's Logo

SPECIALIZING IN PINK SAPPHIRES FROM MADAGASCA

                                                                                                             

 

SEDAGEMS (AUSTRALIA) HS BEEN APPOINTED AS AN AGENT FOR A MADAGASCAN MINING COMPANY                                                                                    

 

 MADAGASCAN RUBY

Birthstone for july 

This material was mined in madagscar and glassed filled treated as below.The colour is a rich ruby appearance.If this was a natural stone with this colour it would be valued in the hundreds of dollars.Ideal ring size.

CABACHONED

 WEIGHT 4.4 CTS

SIZE 9 X 8 X 5.5 MM

 

 

LEAD GLASS TREATMENT 

Filling the fractures inside the ruby with lead glass dramatically improves the transparency of the stone, making previously unsuitable rubies fit for applications in jewelry. The process is done in four steps:

  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 is used at present. The ruby 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 an oxidizing atmosphere. The 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, that dramatically improves the overall transparency of the ruby.

Versandanbieter Versand nach Australia Versand in den Rest der Welt
FedEx $12.00 / 3 $39.00 / 10
Australia
FedEx erhält Rabatt auf $12.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
FedEx erhält Rabatt auf $39.00 bei Bestellungen mit 2 oder mehr Artikeln
Registered Shipping $9.00 / 7 $16.00 / 21
Australia
Registered Shipping erhält Rabatt auf $9.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
Registered Shipping erhält Rabatt auf $16.00 bei Bestellungen mit 2 oder mehr Artikeln

RUBY STONE FROM MADAGASCAR 4.4 CTS  [PS140 ]
Qld, Australia
Gehört sedagems

  • stylesjc
    stylesjc
    Positiv

    As described and well shipped. I would buy from this seller again.

  • spreadingadder
    spreadingadder
    Positiv

    Got here fast! Beautiful blue color! Awesome folks to deal with. Thank you Seda gems!

  • spreadingadder
    spreadingadder
    Positiv

    Fast shipping! Happy with these bright stones! Always great doing business with Seda Gems and Seda Opals!

  • rickferreira626
    rickferreira626
    Positiv

    A gorgeous pair blue topaz stones. This is one happy customer.

5%
Gutscheincode SEDADEALS
Gültig bis
4th Apr 2025

Prüfung

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Versanddetails

Versand:
$3.00 21 über Registered Shipping
Schiffe von:
Australia

Zahlungsmöglichkeiten

  • paypal
  • stripe
Dieser Verkäufer fügt den Transaktionen in Australia 10.00% tax hinzu.

Überblick

Auflistungstyp : Standard
Produkt ID : 241921
Beginnt : 28th February 2025 05:00 pm PST
* Alle Preise sind in USD