Services     SINGLE STONES            PAIRS                     SETS                CABOCHONS         COLLECTOR'S       DESIGNER'S    
 Site map          WELCOME          ORDER TERMS           MINERALS                RESERVE           CONTACT US          ABOUT US    
Usually ships within 24 hours     SEARCH FORM   HELP   INFO. FR   TRACK ORDERS    GEM GUIDE
LOOSE OVAL BLUE SAPPHIRE    NATURAL COLOR     Hardness 9
Online Certificate
RETURN TO »» SAPPHIRE BLUE

Chemical properties:  corundum is composed of pure alumina; its colouring is due to metallic

oxide traces or inclusions. The color of sapphire, due to iron and titanium oxide, gives its best 
effect under daylight.  Electric light makes it often dark.
Gems are generally found in alluvium, but come either from basaltic slags, or from metamorphized marble.
4.90 cts. Oval untreated natural blue sapphire single
         
4.90 carats oval sapphire, untreated blue sapphires, exclusive loose faceted sapphire, natural sapphire shopping   x Pieces: 1 Sapphire x x Type: 100% Natural
 
  Color: Dark royal Blue   Shape: Oval faceted
                 
  Weight: 4.90 Carats   Size: 11.2 x 7.7 mm.
 
  Clarity: MI1   Luster: Excellent
 
  Treatment: None (N)   Origin: Madagascar
Comment: Silk zones 
visible at the end of the table.   Refr. Index: 1.76-1.78   Hardness 9
Hand cut by one of our Depth:6.3 mm.
masters lapidaries.        Untreated in any way.

Stone Price:  USD 2990.00 

ref:SAboN490

  

4.90 carats oval sapphire, untreated blue sapphires, exclusive loose faceted sapphire, natural sapphire shopping          

 

Why Shop With GGGems.com ?
12-Days Inspection Period
Gemological Authenticity
No Risk Payment
No Risk Return Policy
Swiss Owned
24 Hour Email Response
Secure Insured Delivery A. Darbellay;  your guide to GGGems.com
Customer Commitment
Qualified Gemologists                    RETURN TO »» SAPPHIRE BLUE
Fluent English Support by e-mail
Order Terms                              Faq                            Reserve Collection
Back to top  Litho therapy Minerals Collector's Cabochons Contact us
- Scale determining the purity of a stone.  -
FL NFL SI1 SI2 MI1
Flaw less Near flaw less Slightly included 1 Slightly included 2 Medium included 1
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
MI2 MI3 VI1 VI2 HI
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
This is a virtual certificate compiled from the lab data for the gemstone being examined. Clarity is based on magnification
under a 10X corrected loupe. All gemology performed by GGGems. Jean & Alain Darbellay guaranteeing that this stone  
                        is 100% natural. Prices and availability are subject to change without notice.
 
Hardness: 9
Specific Gravity: 3.9 - 4.1   Visual Catalog
Refractive Index: 1.76 - 1.78 Corundum data
Chemical Composition: Al2O3, Aluminum Oxide
Crystal Structure: Trigonal    Cutting Styles
Sapphire Discovery   Ask a question
 
 
Will ship Worldwide
  Green Verdict Image
© 1987 - 2015  gggems.com  All rights reserved.