Sujin Studio

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Sujin Studio I hope you enjoy one of a kind jewelry of Sujin Studio.

Contemporary Handmade Jewelry

All the jewelry from Sujin Studio is completely designed and handcrafted with great care by Sujin in Sujin Studio in New Jersey.

10/13/2026

Many of you have asked how I oxidize my jewelry. Here are the details! 😊
▪️How to oxidize sterling silver
Clean and polish your piece
Soak in warm water + baking soda
Dip in warm liver of sulfur solution
Rinse and dry well
Finish with steel wool for your desired look
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10/09/2026

▪️Always love working with oxidized copper and brass :)
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10/05/2026

▪️How to solder jump rings on a chain
1. Place the jump ring in your third-hand so the seam is visible and ends meet.
2. Touch a tiny bit of flux to the joint.
3. Add a small piece of easy solder on the seam.
4. Light your sharp-tip micro torch and heat only the joint with a medium flame — keep the flame moving.
5. Watch for the solder to flow and bridge the gap; remove the flame when it does.
6. Quench in water (or let cool briefly), then put the piece in pickle to remove scale.
7. Rinse, dry, file/buff the seam smooth, polish.
8. Inspect the join and straighten the ring if needed.
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09/15/2026

▪️Hammering Jewelry Tips
- Start with a clean surface: metal, block, and hammer.
-Control your force:
• Light taps = subtle, fine texture.
• Firm strikes = bold, deep patterns.
-Work evenly—rotate the piece so the texture looks balanced.
-Use a cloth under the block to reduce noise.
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09/09/2026

▪️Every step matters. Every piece is handcrafted.
모든 과정 하나하나가 소중합니다.
정성으로 하나씩 만드는 핸드메이드 주얼리에요.
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08/26/2026

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08/19/2026

▪️How to Fix Pink Copper/Brass in 3 Steps

Pickle – Dip the piece briefly in a sodium bisulfate pickle, then scrub with a brass/copper brush and soap.
⚠️ Wear gloves and eye protection. Pickle is acidic.

Restore color – Soak in a vinegar + hydrogen peroxide solution (2:1) for 10–15 minutes, until the brass/copper’s natural color returns.
⚠️ Use in a well-ventilated area, mix small amounts fresh, and never store the solution.

Polish – Rinse thoroughly, neutralize in baking soda water, then polish by hand or in a tumbling machine for a bright, even shine.

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08/07/2026

▪️All Sujin Studio jewelry is made with the highest-quality sterling silver, fine silver, and gold-filled materials
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https://sujinstudio.etsy.com

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07/28/2026

▪️How I make sterling silver earring posts (19 gauge)

Cut the wire to about 10–11 mm
→ Apply flux on the connection point
→ Solder the post onto the earring piece
→ Pickle and rinse to clean off the oxidation
→ Brush with baking soda for a clean surface
→ Polish in a tumbler for shine
→ File the rough end smooth
→ Make a small groove for the ear nut to fit securely
→ Strengthen the post by gently twisting with pliers
→ Use the right size ear nut — not too loose, not too tight
→ Done!

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07/18/2026

▪️Inspired by the arrowhead flower, blooming from July to September.
I wanted to capture its simple elegance and transform it into a piece you can wear all year long.
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Randolph, NJ

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