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Key specifications

Jewellery materialGold
Legierung750/18 K
Genauer SchmucksteintypZirkonia

General information

Manufacturer Rhomberg
Product type Finger rings
Item number5934631
Manufacturer no.54997848
Release date18.08.2010


Jewellery colour


Yellow is the colour evoked by light that stimulates both the L and M (long and medium wavelength) cone cells of the retina about equally, with no significant stimulation of the S (short-wavelength) cone cells. Light with a wavelength of 570–580 nm is yellow, as is light with a suitable mixture of red and green. Yellow's traditional RYB complementary colour is purple, violet, or indigo, while its colorimetrically defined complementary colour in both RGB and CMYK colour spaces is blue.

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Material is anything made of matter, constituted of one or more substances. Wood, cement, hydrogen, air and water are all examples of materials.

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Jewellery material


Eine Legierung ist eine Mischung von mehreren Metallen. Für Schmuckzwecke wird dabei ein Edelmetall mit einem weiteren Edelmetall, aber auch mit unedlen Metallen wie Stahl oder Kupfer "legiert".
Man legiert Edelmetalle, weil man bestimmte Eigenschaften wünscht, die das reine Edelmetall nicht hat. Beispielsweise erhöhen Legierungen die Härte, die Widerstandsfähigkeit gegen Kratzer und machen ein Edelmetall besser bearbeitbar oder verändern die Farbe.
Die Edelmetallanteile werden in Tausendstel Teilen angegeben. Jedes Schmuckstück, jeder Gegenstand aus Edelmetall trägt einen Stempel mit drei Zahlen, z.B. "750". Sie bezeichnen den Anteil Edelmetall pro tausend Teile Gesamtgewicht. Diese Zahl nennt man den "Feingehalt". Je höher die Feingehaltsangabe, desto wertvoller ist der Gegenstand.

750/18 K
Surface finish


Polishing is the process of creating a smooth and shiny surface by rubbing it or using a chemical action, leaving a surface with a significant specular reflection (still limited by the index of refraction of the material according to the Fresnel equations.) In some materials (such as metals, glasses, black or trasparent stones) polishing is also able to reduce diffuse reflection to minimal values. When an unpolished surface is magnified thousands of times, it usually looks like mountains and valleys. By repeated abrasion, those "mountains" are worn down until they are flat or just small "hills." The process of polishing with abrasives starts with coarse ones and graduates to fine ones.

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1 mm

Target group

Target group

Fingerring Eigenschaften


Schmuckstein Eigenschaften

Synthetische Steine
Genauer Schmucksteintyp


Zirkonia ist eine Diamantimitation für Schmuck.

Number ofc
1 x

Product dimensions


Product dimensions

Physical size of an object

3 mm

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Size chart | 499.9 KB | German

Returns and warranty

Warranty 24 month Bring-in
30-day right of return

30-day right of return

This product may be returned within 30 days after shipment or collection. A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.

Returns and warranty

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.


Mail delivery/Collection

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Information subject to change.

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Rhomberg 549978 (Gold, 750/18 K, 48) Rhomberg 549978 (Gold, 750/18 K, 48)