Product information

1. Is jewellery from bastian inverun real jewellery?

The bastian inverun brand works exclusively with authentic natural materials. This means, for example, that we do not use synthetic stones of any kind. All jewellery from bastian inverun is made of 925/- sterling silver and 750/- yellow gold. Some of the pendants, for example, are supplemented with firmly integrated Tonda chains with a silver or gold-plated stainless steel core, which is stated in their product descriptions. Real gemstones, diamonds and cultured pearls are used to refine the pieces. 

2. What is 925/- sterling silver and 750/- yellow gold?

Pure fine silver is too soft for jewellery making. That’s why other metals are included to achieve a certain hardness. The result is an alloy made of 92.5% fine silver and 7.5% other metals (e.g. copper). So the content of fine silver is 925/1000. The name sterling silver refers to the British Pound sterling given that sterling silver was once used to make English silver pennies.

750/- yellow gold has a purity of 18 carat and consists of 75% fine gold and 25% other precious metals such as silver and copper depending on which colour tone is to be achieved. bastian inverun uses a very warm, brilliant gold tone for the gold collection.

Every piece of jewellery from bastian inverun is embossed with 925/- or 750/- to reflect the fine gold.

3. What does rhodium plating mean?

Rhodium plating refers to finishing a piece of jewellery with a thin layer of rhodium, a high-quality platinum metal. Rhodium plating protects silver jewellery against natural corrosion (typical tarnishing). 

Please keep in mind that a rhodium layer (just as with gold plating) wears off over time (this particularly applies to rings). Rhodium plating gives your piece of jewellery a cooler colour tone. The rhodium plating is applied in a galvanic bath using electric current. As a result, rhodium plating is therefore a form of galvanic finishing, which is associated with a price premium for your rhodium-plated jewellery.

4. How do I care for and store my newly purchased jewellery and what should I keep in mind when wearing it?

Certain climatic conditions, environmental pollutants, the influence of chemicals, skin pH, cosmetics as well as regularly wearing the jewellery may cause marks to be left on the jewellery. Below, you will find some tips for keeping your jewellery’s attractive appearance for a long time to come.

Tips for wearing your jewellery

  • Generally, you should remove your jewellery before showering, using a sauna, swimming, going to bed, exercising or doing garden and/or house work.
  • Particularly chlorine and salt water can damage high-quality jewellery
  • Always protect your jewellery before applying make-up, lotions, perfume, hairspray and other care products


  • Make sure that the jewellery is not exposed to excessive sunshine, a high level of humidity and high temperatures
  • Do not store jewellery in the bathroom 
  • To prevent and/or slow oxidation, it is recommended you store your jewellery where there is as little light and air as possible (e.g. in a soft bag, tissue paper or a plastic bag with a grip seal)


For both our gold and silver jewellery not fitted with gemstones or pearls, we recommend cleaning them in a lukewarm water bath with a soft toothbrush and a small amount of soap or mild detergent. Then wash the jewellery with cold water and dry it thoroughly with a soft cloth. For jewellery fitted with pearls and soft gemstones, you should refrain from using soap and detergent. 

Please do not use any abrasive or scouring cleaners to clean the jewellery (toothpaste, denture cleaner & co.). In the event of intense discolouration of silver jewellery, we recommend using professional silver cleaning agents.

5. Is jewellery from bastian inverun nickel-free?

In the past, nickel was mixed with the silver alloy for added stability. Today most jewellery manufacturers tend to refrain from using nickel as an additive. All jewellery from bastian inverun is 100% nickel-free, no nickel is added.

6. Why does silver jewellery tarnish?

Silver jewellery tarnishes because the material reacts with the air which contains hydrogen sulphide. Through the so-called oxidation process, silver sulphide is formed giving the jewellery a yellow-brown to grey-black tinge. This is a natural process. Certain environmental factors, unfavourable storage, but also the acidic pH of the skin can significantly accelerate this process. 

Therefore, it is entirely normal for sterling silver to tarnish over time. How much and how quickly jewellery tarnishes (oxidises) can, however, be influenced (see care instructions). The tarnishing of silver neither a product defect nor a sign of low quality or poor workmanship, it is a typical characteristic of the material.

7. How can I measure my ring size?

By means of our printable stencil, you can easily find out your ring size. For this, please click here.

Please observe the following when printing out the stencil:

  1. Please observe the following when printing out the stencil:
  2. Print out the stencil at 100% zoom on A4 in landscape format.
  3. Check the print size by means of the specified scale.
  4. Fold the paper on the dashed line and cut along the semi-circles.
  5. You can now determine your perfect ring size. The round cut-out should closely embrace the finger.

Alternatively, you can also put a ring with the desired size onto the stencil. Please ensure that the circle on the inside of the ring is completely visible everywhere.

Here are a few general notes on measuring the ring size:

  • The wider the ring band, the tighter the ring feels. If you have selected a wider ring, then please order it in one ring size larger.
  • The ambient temperature affects your required ring size. Therefore, measure your finger at normal temperatures and preferably in the evening.

Order information

8. What is a service commitment and what advantage does it get me?

Our service commitment means that the bastian inverun retailers in your area will advise you regarding all aspects of the purchased jewellery. 

You can book the service commitment free-of-charge during the order process. Please refer to the map integrated in the order process for all participating bastian retailers. Whether you are having the jewellery sent to your home or directly to the jeweller/goldsmith of your choice – the service commitment will be honoured in either case .

9. What is Click & Collect and what advantages does this service offer?

Our “Click & Collect” service allows you to have the designer jewellery you select sent to the bastian retail partner of your choice. Shipping costs of 4.90 Euro are charged for store delivery. 

Under the “Stores” heading in the store main navigation, you can search for the closest retailer either on the integrated map or locate a retailer in the “Find a retailer” search field by entering your address and then selecting store delivery.

10. How is my jewellery packaged?

Each piece of jewellery is packed in high-quality packaging. The size of the packaging varies according to the size of the piece of jewellery. Your goods are sent in a standard shipping box.

11. What are the shipping conditions?

Currently, deliveries are made exclusively within Germany. You do not have to comply with a minimum order value for orders in our online shop. The shipment costs are EUR 4.90 if you have the parcel delivered to your home. Alternatively, you have the option of having the parcel sent free of charge to a bastian retailer of your choice who is listed in the retailers’ directory and pick it up from there.

The return is free for you. The delivery period for immediately available pieces of jewellery is about 3-5 working days. The delivery will be made through our logistics partner DHL respectively from Monday to Saturday. Please keep in mind that longer delivery times, particularly around Christmas, are out of our sphere of control. We will notify you of your DHL tracking number via email. Please use it to access any information about the shipping status of your order.

Please find more information in our General Terms and Conditions (GTC) General Terms and Conditions (GTC).

12. Which payment methods are available?

You can pay for your designer jewellery by means of the following payment methods:

  • Payment  in advance
  • PayPal
  • Purchase against an invoice via Klarna
  • Credit card, direct debit and SOFORT (instant bank transfer) via Klarna 
  • Installment purchase via Klarna

Please find more information in our General Terms and Conditions (GTC).

Returns & reimbursement

13. How much time do I have to return the goods?

We hope you are fully satisfied with your order. However, if there is something you’re not quite happy with or if a product doesn’t meet your expectations, you can of course return it.

You have the possibility of returning the purchased good within 14 days without giving any reason. This 14-day return period begins on the date on which the product was received by you or a third party specified by you (who was not the carrier) and ends on the date on which you mailed the parcel at a post office or DHL station. 

Once we have received and inspected the goods, we will refund the full purchase price to you within 30 days (plus shipping costs if all articles are returned) and via the same payment method you used for your order. Only complete goods (e.g. earrings as a pair) will be accepted.

Please keep in mind that only goods in their original condition (unworn and undamaged) including the attached security label will be accepted. The inclusion of the receipt is not a prerequisite for exercising the right of withdrawal, but it facilitates the processing of your return and refund. Please ensure that the goods are properly packed in the original packaging to prevent the goods from being damaged during transport. Neither the carrier nor bastian Online Trade GmbH & Co. KG shall be liable in the event of improper packaging. 

In the case of articles, which have been worn and exhibit signs of use, we will have to charge you for the resulting loss in value. This is the case if, in connection with the inspection of the condition of the goods, it is determined that the goods have not been handled properly.

14. Is the return free for me?

You can return your order by post free of charge within 14 days of receipt of the goods. A return slip is included with every order. Place the goods with the security label, original packaging and receipt in a package and then affix the self-adhesive return slip to it. Take the package to the next DHL service point and, to be sure, keep the dispatching confirmation from DHL. As soon as we have received the returned goods, we will refund the purchase price (including the costs of shipping if the return shipment is complete).

Please note that the return shipment is only insured for a value of up to EUR 500 with our return label. For goods whose value exceeds EUR 500, you must send the return shipment back to us at your own cost with corresponding insurance.

15. Can I exchange my jewellery?

The automated flows of the order system do not allow for the exchange for a different size or piece of jewellery in our online shop. We would like to ask you to return the product, which you would like to exchange. For this, use the enclosed free return label. Then reorder the desired product in the correct size.

16. Do I have a warranty claim for the jewellery I purchased?

You have a warranty of two years from the purchase date on your bastian jewellery for material and processing defects. The original proof of purchase serves as the warranty document. In order to claim warranty, you can return the defective piece of jewellery purchased from bastian Online. Trade GmbH & Co. KG to us with the proof of purchase within the two-year period. 

Please always keep in mind that bastian jewellery, which was purchased directly from an authorised jewellery store, must be exclusively returned there along with the purchase receipt and that it cannot be sent directly to bastian. 

Your jewellery will be repaired free of charge within this two-year time limit. If this is not possible or if a repair is unreasonable, the purchase price will be refunded to you or you will receive a free replacement delivery. If the product is no longer available, you will receive credit. You do not have a warranty claim in cases of improper handling, external repairs, careless treatment or if the jewellery was damaged, e.g. in the course of an accident. Please note the special care instructions for jewellery by bastian inverun. 

For your own safety, we wish to advise you that the defective jewellery can only be returned to us if insured. Please contact bastian inverun customer service ( if you no longer have the return label so that we can send you a new return label.