Rough diamond / Ring / new- 1.5 g - (1)
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Rough diamond ring in 925 sterling silver, featuring a 6.7 × 5.7 mm Rohdiamant with a total diamond weight of 7.5 ct, ring weight 1.50 g, origin South Africa, US size 8.0 (inner diameter 18.1 mm).
AI-assisted summary
Description from the seller
Rough diamond ring / new
Set in 925 sterling silver
Total weight: 7.5 ct / 1.50 g
6.7 mm x 5.7 mm
New and unworn
Ring size:
U 57
UK P 1/2
US 8.0
Fr 17
Inside diameter: 18.1 mm
Diamonds are the cubic modification of carbon and, as a naturally occurring solid, a mineral from the mineral class of elements. Diamonds typically form octahedral crystals, often with curved and striated faces. Other observed shapes include tetrahedra, dodecahedra, and cubes. The crystals are transparent, colorless, or colored green, yellow, brown and less commonly orange, blue, pink, red or gray to black due to impurities (e.g., nitrogen or boron) or crystal lattice defects.
Diamond is the hardest natural substance. On the Mohs scale it has a hardness of 10. Its abrasive hardness on the Rosas (Rosian) scale (also absolute hardness) is 140 times greater than that of corundum. However, diamond hardness varies in different crystallographic directions (anisotropy). This makes it possible to cut diamond with diamond. In the diamond powder used for this purpose, the crystals are oriented in all directions (statistical isotropy), so the hardest among them always act on the material to be ground.
Diamond is optically isotropic with high refractive index and high dispersion. It exhibits fluorescence and phosphorescence and is triboelectric. It has the highest thermal conductivity of all known minerals.
Shipping as insured registered mail
Seller's Story
Dipl. Geol. Tim Güldenpfennig
Translated by Google TranslateRough diamond ring / new
Set in 925 sterling silver
Total weight: 7.5 ct / 1.50 g
6.7 mm x 5.7 mm
New and unworn
Ring size:
U 57
UK P 1/2
US 8.0
Fr 17
Inside diameter: 18.1 mm
Diamonds are the cubic modification of carbon and, as a naturally occurring solid, a mineral from the mineral class of elements. Diamonds typically form octahedral crystals, often with curved and striated faces. Other observed shapes include tetrahedra, dodecahedra, and cubes. The crystals are transparent, colorless, or colored green, yellow, brown and less commonly orange, blue, pink, red or gray to black due to impurities (e.g., nitrogen or boron) or crystal lattice defects.
Diamond is the hardest natural substance. On the Mohs scale it has a hardness of 10. Its abrasive hardness on the Rosas (Rosian) scale (also absolute hardness) is 140 times greater than that of corundum. However, diamond hardness varies in different crystallographic directions (anisotropy). This makes it possible to cut diamond with diamond. In the diamond powder used for this purpose, the crystals are oriented in all directions (statistical isotropy), so the hardest among them always act on the material to be ground.
Diamond is optically isotropic with high refractive index and high dispersion. It exhibits fluorescence and phosphorescence and is triboelectric. It has the highest thermal conductivity of all known minerals.
Shipping as insured registered mail
Seller's Story
Dipl. Geol. Tim Güldenpfennig
Translated by Google TranslateDetails
Number of objects
1
Main mineral
Rough diamond /
Mineral form
Ring / new
Supplement
925. Sterling silver
Weight
1.5 g
Country of origin
South Africa
Sold by
GermanyVerified
protop
Rechtliche Informationen des Verkäufers
- Unternehmen:
- Tim Güldenpfennig
- Repräsentant:
- Tim Güldenpfennig
- Adresse:
- Tim Güldenpfennig
Hegelstr. 32
72108 Rottenburg
GERMANY - Telefonnummer:
- +4915756630304
- Email:
- tigue@gmx.de
- USt-IdNr.:
- DE246631347
AGB
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Widerrufsbelehrung
- Frist: 14 Tage sowie gemäß den hier angegebenen Bedingungen
- Rücksendkosten: Käufer trägt die unmittelbaren Kosten der Rücksendung der Ware
- Vollständige Widerrufsbelehrung
Disclaimer
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
