Solitaire and Engagement Ring Manufacturer

OSKA manufactures solitaire and engagement rings in Istanbul for brands and jewelers. Settings are made in 9K, 10K, 14K and 18K gold, with natural diamonds or lab-grown diamonds.

Why the setting matters on a solitaire

On a solitaire all attention is on a single stone, so even the smallest flaw in the setting shows. The symmetry of the prongs, the height of the stone and the thickness of the band decide both the look and the durability in daily wear. The stone seat is calculated at the CAD stage from the dimensions of the stone.

Options we make

  • Classic four-prong and six-prong solitaires
  • Modern bezel-set solitaires
  • Side-stone and pavé-band designs
  • Five-stone, eternity and half-eternity rings
  • Yellow, white and rose gold

Natural and lab-grown diamonds

The same setting can be made with natural or lab-grown diamonds. We can source the stone to the size, colour and clarity range you specify, or work with a stone you send. If you need certified stones, simply state this at the quotation stage.

Frequently asked questions

Can I send my own stone?

Yes. We design the setting to the dimensions of your stone and carry out the setting.

Do you work on collections or single models?

Both. See contract manufacturing for your own design, or custom design for a new line.

How do I get a quotation?

Send the design image, stone size, gold karat and estimated quantity through the quotation form. See how we work for terms.

Our other services

Jewelry manufacturing in Istanbul · Gold jewelry manufacturing · Diamond jewelry manufacturing · Lab-grown diamond jewelry · 925 silver jewelry manufacturing · CAD design and prototyping · Stone setting, plating and finishing · Contract jewelry manufacturing · Custom jewelry manufacturing · Wholesale gold jewelry · Men's jewelry manufacturing