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Non hai fatto offerte per questa asta.
3.25 Ct Star Ruby CERTIFIED Beautiful Natural Unheated & Untreated
- SKU
- Dimensioni (mm)
- 8.42 x 7.18 x 4.68mm
- Peso (cts)
- 3.25
- Certified Gemstones
- SÌ
- Treatment
- No Treatment
- Colori
-
SC - 43
Gemstone: 100% Natural Star Ruby
No Of Pcs: 1
Shape: Cabochon (As Pictured)
Clarity : Opaque (As pictured)
Treatments: None, Its 100% Natural
Origin: India
Save on Shipping by buying multiple items through BUY IT NOW from our store.
You need to pay regular shipping for the 1st item and then only US$ 2.00 for every additional item
(ONLY FOR BUY IT NOW ITEMS)
.
Buy the items you want to via BUY IT NOW and then drop us a message and we will send you an invoice with the discounted shipping charges.
BUY AS MANY ITEMS YOU WANT TO AND COMBINE SHIPPING !!
THIS DOES NOT APPLIES TO THE ITEMS IN THE NO RESERVE CATEGORY
What are star rubies?
Star Rubies are a rare variety of the gemstone Ruby. These magnificent gems display a sharp six-rayed star which seems to glide magically across the surface of the gem when the latter is moved. This is caused due to an optical phenomenon known as “Asterism”. The star is best visible when the star ruby is seen in a single light source such as sunlight and spotlight.
what causes the star-effect in star rubies?
Star-effect or “asterism” is caused by the dense inclusions of tiny fibers of rutile (also known as “silk”). The stars are caused by the light reflecting from needle-like inclusions of rutile aligned perpendicular to the rays of the star. However, since rutile is always present in star rubies, they are never completely transparent. In fact, star ruby is one of those few gemstones which actually require inclusions (i.e. rutile).
Are star rubies rare?
Today, out of every 100 rough corundum (ruby and sapphire) mined; only three will have stars apparent after being cut into cabochons. Out of these three, one will have a poor color but a good star; one will have a poor star but a good color and only one out of hundred will have both a good star and a good color! Most original sources of star rubies such as Mogok (Burma) have run out of supplies. Worldwide production today is yielding a very small quantity of fine stars (especially in sizes above 5 carats). Star rubies are becoming rare as most rough today is cut into faceted stones after heating instead of being cut into cabochons to display the star. Till the 1960’s star rubies fetched more prices than faceted rubies!
Sources of star ruby
Most rough rubies that can be cut into stars are mined from Burma (Myanmar), Srilanka, India, Africa, Vietnam, Thailand, Afghanistan, Pakistan, Australia, Cambodia, United States. The most commonly available Star Rubies are usually from Africa and India.
| Fornitore di spedizioni | Spedizione a India | Spedizione nel resto del mondo | Spedizione combinata ( India ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
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| Express Shipping |
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- SKU
- Dimensioni (mm)
- 8.42 x 7.18 x 4.68 mm
- Peso (cts)
- 3.25
- Certified Gemstones
- SÌ
- Treatment
- No Treatment
- Colori
-
SC - 43
Gemstone: 100% Natural Star Ruby
No Of Pcs: 1
Shape: Cabochon (As Pictured)
Clarity : Opaque (As pictured)
Treatments: None, Its 100% Natural
Origin: India
Save on Shipping by buying multiple items through BUY IT NOW from our store.
You need to pay regular shipping for the 1st item and then only US$ 2.00 for every additional item
(ONLY FOR BUY IT NOW ITEMS)
.
Buy the items you want to via BUY IT NOW and then drop us a message and we will send you an invoice with the discounted shipping charges.
BUY AS MANY ITEMS YOU WANT TO AND COMBINE SHIPPING !!
THIS DOES NOT APPLIES TO THE ITEMS IN THE NO RESERVE CATEGORY
What are star rubies?
Star Rubies are a rare variety of the gemstone Ruby. These magnificent gems display a sharp six-rayed star which seems to glide magically across the surface of the gem when the latter is moved. This is caused due to an optical phenomenon known as “Asterism”. The star is best visible when the star ruby is seen in a single light source such as sunlight and spotlight.
what causes the star-effect in star rubies?
Star-effect or “asterism” is caused by the dense inclusions of tiny fibers of rutile (also known as “silk”). The stars are caused by the light reflecting from needle-like inclusions of rutile aligned perpendicular to the rays of the star. However, since rutile is always present in star rubies, they are never completely transparent. In fact, star ruby is one of those few gemstones which actually require inclusions (i.e. rutile).
Are star rubies rare?
Today, out of every 100 rough corundum (ruby and sapphire) mined; only three will have stars apparent after being cut into cabochons. Out of these three, one will have a poor color but a good star; one will have a poor star but a good color and only one out of hundred will have both a good star and a good color! Most original sources of star rubies such as Mogok (Burma) have run out of supplies. Worldwide production today is yielding a very small quantity of fine stars (especially in sizes above 5 carats). Star rubies are becoming rare as most rough today is cut into faceted stones after heating instead of being cut into cabochons to display the star. Till the 1960’s star rubies fetched more prices than faceted rubies!
Sources of star ruby
Most rough rubies that can be cut into stars are mined from Burma (Myanmar), Srilanka, India, Africa, Vietnam, Thailand, Afghanistan, Pakistan, Australia, Cambodia, United States. The most commonly available Star Rubies are usually from Africa and India.
| Fornitore di spedizioni | Spedizione a India | Spedizione nel resto del mondo | Spedizione combinata ( India ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| Express Shipping |
|
|
|
|
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PositivoPaid and shipped - no feedback left after 60 days
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Positivo
Very pretty stone, as described.
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Positivo
Will make a nice pendant! Thank you. Super speedy postage too, which was great!
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Positivo
stones as described, very nice
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Positivo
was as described
Perché gli utenti superano se stessi?
Quando viene fatta un'offerta, questo è l'importo massimo che una persona è disposta a offrire per il prodotto. Il nostro sistema farà quindi automaticamente un'offerta per conto dell'offerente, aumentando gradualmente l'offerta fino al massimo per mantenere la sua posizione di miglior offerente.
Quando c'è un'icona che indica "Offerta automatica", significa che il nostro sistema sta attivamente piazzando offerte per l'offerente in base alla sua offerta massima. Questo potrebbe sembrare come se gli offerenti stessero superando se stessi, ma è semplicemente il risultato del sistema che aggiorna l'offerta per riflettere il limite massimo degli offerenti.
