Question 1

Where can I buy a silver bracelet, and how do I tell good quality?

Accepted Answer

Look for the 925 hallmark first; 925 means the metal is 92.5% pure silver. The quality of the plating (rhodium or gold), a secure clasp and clean workmanship also matter. OSKA makes 925 silver and gold bracelets in its Istanbul workshop, made to order or wholesale, and every piece carries a hallmark.

Question 2

What should I check when buying a diamond?

Accepted Answer

Four qualities set a diamond’s value: cut, colour, clarity and carat. For larger stones, ask for a certificate from an independent laboratory such as GIA or IGI. OSKA states the stone details and any certificate in writing in the quotation.

Question 3

Natural diamond or lab-grown diamond?

Accepted Answer

A lab-grown diamond has the same chemical and physical structure as a natural diamond; only its origin differs. At the same size and quality, a lab-grown diamond is usually more accessible. OSKA can make the same design with either stone.

Question 4

Is moissanite a diamond?

Accepted Answer

No. Moissanite is a separate stone made of silicon carbide. It is brilliant and durable, but it is not a diamond and should never be sold as one.

Question 5

Should I choose 14K or 18K gold?

Accepted Answer

14K gold is harder and resists scratches better in daily wear. 18K has a higher gold content and a richer colour. Most people choose 14K for rings and bracelets worn every day, and 18K for special pieces.

Question 6

What is a hallmark and why does it matter?

Accepted Answer

A hallmark shows the metal content of a piece: 585 (14K) or 750 (18K) for gold, 925 for silver. It confirms the piece is the stated karat. OSKA hallmarks every piece.

Question 7

Can I have a jewelry design I created with AI made into a real piece?

Accepted Answer

Yes. Send us an image you created with an AI tool, a sketch or a photo you like. We make the design manufacturable and turn it into a CAD drawing; after your approval come the sample and production. It can be a single piece or a production run.

Question 8

Who can make my own jewelry design?

Accepted Answer

You need a manufacturer with its own workshop. OSKA works in its Istanbul workshop on everything from a single bespoke piece to production runs for brands; your designs stay confidential, and an NDA can be signed on request.

Question 9

How do I find my ring size?

Accepted Answer

The easiest way is to measure the inside diameter of a ring that fits you, in millimetres. Measure in the evening at room temperature for a more accurate result; for wide bands, half a size up is more comfortable.

Question 10

Why does white gold turn yellow?

Accepted Answer

The bright white colour of white gold usually comes from rhodium plating. As the plating wears, the natural light yellow tone of the gold shows. Re-plating with rhodium restores the original colour.

Question 11

Why does silver tarnish, and how do I clean it?

Accepted Answer

Silver tarnishes when it reacts with sulphur in the air. Clean it with a soft silver cloth or warm soapy water. Rhodium-plated silver tarnishes much more slowly. Store jewelry away from perfume and chemicals, in a closed box.

Question 12

Where can I buy wholesale jewelry?

Accepted Answer

Buying directly from a manufacturer gives you control over quality and process. OSKA makes gold, diamond and silver jewelry in Istanbul for jewelers, stores and brands; a sample is made first, and production follows after approval.

Question 13

How do I start my own jewelry brand and find a manufacturer?

Accepted Answer

First set the style of the collection and its target customer, then work with a workshop that can make samples. OSKA supports brands with design, sampling and production under your own brand.

Which language should we use?

珠宝问答

银手链在哪里买?如何辨别优质品?

购买钻石时应注意什么?

天然钻石还是实验室培育钻石?

莫桑石是钻石吗?

我应该选14K还是18K黄金?

什么是成色印记?为什么重要?

我用人工智能绘制的珠宝设计可以生产吗?

我可以找谁来制作自己的设计?

如何得知戒指尺寸?

白金为什么会发黄?

银饰为什么会发黑?如何清洁?

批发珠宝在哪里买?

如何创立自己的珠宝品牌?如何寻找制造商?

How can I guide you?