OSKA Journal
Notes from the atelier on jewelry manufacturing, materials and building a brand.
White Label and OEM Lab-Grown Diamond Jewelry from Istanbul: IGI-Certified Wholesale Guide
How to source white label and OEM lab-grown diamond jewellery from Istanbul: IGI-certified stones, samples, payment terms, metals and what sells in the US and Europe.
Read more →Lab-Grown Diamond Earrings and Necklaces: Studs, Pendants and Rivière Guide
How to choose lab-grown diamond stud earrings, pendants and rivière necklaces: carat size, settings, metal and what to ask a manufacturer.
Read more →Lab-Grown vs Natural Diamonds: Differences, Price and Value
Are lab-grown diamonds real? How they compare with natural diamonds on quality, price, resale and ethics, and what it means for jewelry brands.
Read more →Lab-Grown Diamond Engagement Rings and Tennis Bracelets: What to Look For
A practical guide to choosing lab-grown diamond solitaire rings and tennis bracelets: cut, colour, clarity, settings and metal.
Read more →Lab-Grown Diamond Jewelry in Sterling Silver, 10k, 14k and 18k Gold: A Buyer's Guide
How lab-grown diamonds are set in 925 silver, 10k, 14k and 18k gold, what changes between metals, and how to choose for retail or wholesale.
Read more →Why Source Jewelry from Istanbul? Wholesale and Private Label Guide
A practical guide for jewelry retailers and brands sourcing wholesale, custom and private label jewelry from an Istanbul manufacturer.
Read more →What Is an IGI Certificate? How to Read a Lab-Grown Diamond Certificate
What information a diamond and lab-grown diamond certificate contains, how to verify the report number and what to check when buying.
Read more →14K or 18K? Gold Karat Differences Guide
The difference between 14k and 18k gold, which karat suits which jewelry, and how to choose in wholesale or custom production.
Read more →Starting a Jewelry Brand: Contract, Custom Design and Private Label Manufacturing
Who will produce your pieces when you start a jewelry brand, and how? The differences between contract manufacturing, custom design and private label, and which suits whom.
Read more →What Is Black Plating (Black Rhodium)? Dark Finishes in Jewelry
What is black plating, how does it differ from oxidizing, which models use it and how long does it last? A short guide for designers and brands.
Read more →What Is a Lab-Grown Diamond? Difference from Natural Diamond
Is a lab-grown diamond a real diamond, how is it made, and how does it differ from natural diamond and zirconia? A short guide for brands and jewelers.
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