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11ct Black Star Sapphire 13mm x 11mm

11ct Star Sapphire Black Oval Opaque 13x11mm
Star Sapphire from The Source Star Sapphire from The Source Star Sapphire from The Source Click to Enlarge

Guaranteed 100% Natural Gem

Photos above are of Actual Item for Sale
Type: Star Sapphire
Item ID: 284389
Content: 1 gem
Weight: 10.73 ct
Size: 13.24 mm x 10.96 mm x 6.93 mm
Shape: Oval Cabochon
Clarity: Opaque
Treatment: Fracture Filled
Origin: Thailand
Price: USD
Shipping & Handling USD 6.99
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10 carat Black Oval Cabochon Star Sapphire 13mm x 10.5mm
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This natural Black Star Sapphire originates from Thailand and its weight is about 11 carats. The measurements are 13.24mm x 10.96mm x 6.93mm (length x width x depth). The shape/cut-style of this Star Sapphire is Oval Cabochon. This 10.73ct Star Sapphire gem is available to order and can be shipped anywhere in the world. Gemstone Certification can also be provided as an optional service.
Shipping Back To Top
  • FedEx or DHL for USD 20.00 only / Delivery 3-4 days / fully insured
  • Registered Mail for USD 6.99 / Delivery 7-14 days / insured for USD 200.00
Payment Options
  • Credit Card
  • PayPal
  • Western Union
  • Bank transfer
Guarantee / Certification
  • All gemstones are natural!
  • All photos and videos are of the actual gem for sale (No Stock Photos)
  • We offer certification from AIGS for USD 30.00 (5-10 additional days)
  • We also offer certification from the BGL lab for USD 15.00 only (3-4 days)
Size and Weight Back To Top
  • Gems are always measured in Millimeter (mm)
    Compare mm Size with US coins
  • Dimensions are given as length x width x depth, except for round stones which are diameter x depth
  • Select gems by size, not by weight! Gem varieties vary in density, so carat weight is not a good indication of size
  • Note: 1ct = 0.2g
Additional Quantities
  • Every item is unique, so you can only order 1 of each item
  • However, we often have similar or matching items. If so, we display them on the same gem detail page
Clarity Explained Back To Top
  • IF = Loupe Clean - Internally flawless; free of inclusions
  • VVS = Almost Loupe Clean - Very, very slight inclusions; inclusions barely seen under 10x magnification
  • VS = Eye Clean - Very slight inclusions; inclusions can be seen under 10x magnification
  • SI = Slightly included - Small inclusions can be seen with the naked eye
  • I1 = Included - Inclusions can be seen with the naked eye
  • Transparent = A gemstone having the property of transmitting light without serious diffusion / may have rutile or other inclusions
  • Translucent = Allowing light to pass through, but not transparent
  • Opaque = Does not allow light to pass through
Return Policy
  • All gems have a 30-day inspection period, which begins on the date of delivery. Gems may be returned for a full refund during this period.
  • Please email us for return authorization code when returning a gem.
  • For more details click here
Treatment Back To Top
Fracture Filled:
Filling tiny surface-reaching fissures improves the color of some gems such as ruby and emerald. Many lower grade rubies are fracture-filled with lead glass. More about treatments
About Star Sapphire
Star sapphire is a respected member of the corundum family. Red corundum is called ruby. All other color varieties of corundum being referred to as sapphire. Corundum is the second hardest substance on the Mohs scale, with a rating of nine. Diamond tops that scale with a ten. That hardness combined with the rich color and silky shine make fine sapphires extremely valuable.

Star sapphires contain unusual tiny needle-like inclusions. Those rutile needles result in a silky shine on the surface of the gem. Aligned needles that intersect each other at varying angles produce a phenomenon called asterism (Latin aster for star). Because of their crystal structure, only the star sapphire and the star ruby show six white rays of light that meet in one point and dance over the gem's surface when viewed from different directions.

Star sapphire range in color from blue in various tones, pink, orange, yellow, green, lavender, gray to black. The most desirable color is a vivid, intense blue.

Star sapphire is a durable, popular stone for men's rings. A black star sapphire supports a masculine image best. In ancient times, star sapphire was regarded as a powerful talisman guiding travelers and seekers of all kinds.
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