MainlinePremiumUSA

Illinois, United States

38
 Sales

5.0 (12)

1.5 years
on Etsy

5.0 (12)

38
 sales

1.5 years
on Etsy

Contact

Following Follow

38
 Sales

5.0 (12)

1.5 years
on Etsy

5.0 (12)

38
 sales

1.5 years
on Etsy

All 90
On sale 21
gift box 21
candles 27
pop gems 32

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38 Sales

57 Admirers

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Announcement

Last updated on Jun 13, 2026

✨ Welcome to MAINLINE ✨

Where bold sparkle meets handmade artistry.

Explore statement rings, personalized gifts, and unique handcrafted creations designed to stand out and be remembered. Every piece is carefully made by hand and packaged with love from my studio in the USA.

Custom ring sizes and personalized orders are available.

Thank you for supporting handmade and being part of the MAINLINE story. 💎

✨ Designed to Shine. Made to Be Remembered.

Contact shop owner

Antonina mardarii

Reviews

5.0 (12)

Average item review

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

Etsy buyer on Aug 20, 2026

5 out of 5 stars

Go big or go home! This is a big fantastic ring! And their customer service is impeccable. Don’t hesitate- buy it now.

Antonina responded on Aug 20, 2026

Thank you so much for this amazing review! 🖤✨ I absolutely love seeing the ring on you — it looks fantastic! And your kind words about my customer service truly mean so much to me. Enjoy your statement piece! 💎

Riviera Royale Statement Ring | Handmade Crystal Ring | Bold Cocktail Ring | Colorful Artisan Jewelry | Custom Size Ring

Riviera Royale Statement Ring | Handmade Crystal Ring | Bold Cocktail Ring | Colorful Artisan Jewelry | Custom Size Ring
Ginny on Jun 21, 2026

5 out of 5 stars

Absolutely stunning! Can’t wait to go show these rings off! Ty ♥️♥️♥️♥️

Riviera Royale Statement Ring | Handmade Crystal Ring | Bold Cocktail Ring | Colorful Artisan Jewelry | Custom Size Ring

Riviera Royale Statement Ring | Handmade Crystal Ring | Bold Cocktail Ring | Colorful Artisan Jewelry | Custom Size Ring
elizabeth on Sep 25, 2026

5 out of 5 stars

Love these rings!!!!! So happy!!

Antonina responded on Sep 25, 2026

Thank you so much, Elizabeth! 💖 It makes me incredibly happy to know you love your rings! Thank you for choosing my handmade creations and supporting my little business. Enjoy wearing your beautiful new pieces! ✨

Noir Éclat Statement Ring | Baby Blue Crystal Ring | Pastel Blue Cocktail Ring | Oversized Crystal Ring | Handmade Polymer Clay Jewelry

Noir Éclat Statement Ring | Baby Blue Crystal Ring | Pastel Blue Cocktail Ring | Oversized Crystal Ring | Handmade Polymer Clay Jewelry
elizabeth on Sep 25, 2026

5 out of 5 stars

These rings are amazing!!! I am so HAPPY!

Antonina responded on Sep 25, 2026

Elizabeth, your happiness means the world to me! 🥰 Thank you for your wonderful review and for giving both of my creations a home. I'm so grateful for your support! ❤️✨

Rêve de Cristal Statement Ring | Green Crystal Ring | Pink Cocktail Ring | Handmade Polymer Clay Ring | Bold Artisan Jewelry

Rêve de Cristal Statement Ring | Green Crystal Ring | Pink Cocktail Ring | Handmade Polymer Clay Ring | Bold Artisan Jewelry
Elaine on Sep 1, 2026

5 out of 5 stars

This ring was perfectly made, to size, very well packed. I would go to say that this seller has high expectations of her work and perfectionism. Wonderful. I was so excited when I opened the box. I had to have another one made in a different colour. Please show your gratitude to hand made pieces

LA DIVA Statement Ring, Black White Cocktail Ring, Oversized Crystal Ring, Bold Fashion Jewelry, Unique Gift for Her

LA DIVA Statement Ring, Black White Cocktail Ring, Oversized Crystal Ring, Bold Fashion Jewelry, Unique Gift for Her
Linda on Aug 6, 2026

5 out of 5 stars

See ring review. Earrings are very comfortable.

Antonina responded on Aug 7, 2026

Linda, thank you so much for adding this beautiful photo! 🥹💕 Seeing the earrings on you absolutely made my day! I’m so happy to hear they’re comfortable to wear, because creating bold statement pieces that are still comfortable has always been one of my biggest goals. Thank you again for your kindness, your gorgeous photos, and for supporting my small business. It truly means the world to me! ✨💖

Burgundy Statement Stud Earrings, Blue Crystal Earrings, Handmade Luxury Earrings, Bold Jewelry Gift for Her, Elegant Studs

Burgundy Statement Stud Earrings, Blue Crystal Earrings, Handmade Luxury Earrings, Bold Jewelry Gift for Her, Elegant Studs
Linda on Aug 6, 2026

5 out of 5 stars

I was so excited to get this set and when I opened the package I was not disappointed at all. The ring is absolutely gorgeous and the earrings are spectacular as well! If you like large shiny jewelry this set is for you. She has other sizes as well but I like 'em big! These are very similar to a designer line and you will feel quite special when you wear them. The jewelry is well made and the seller responds quickly and is a joy to work with. As soon as I'm done writing this I'm going to shop for another ring, but smaller this time so I can wear them at the same time. The ring is vey comfortable and the earrings are surprisingly light to wear.

Antonina responded on Aug 7, 2026

Linda, I truly don’t have enough words to thank you for this incredible review. 🥹💕 Reading your kind words brought the biggest smile to my face! Knowing that you love both your ring and earrings, and that they made you feel special, means more than I can express. Thank you for mentioning how comfortable they are to wear—that means so much! And hearing that you’re already planning your next ring absolutely made my day. Thank you from the bottom of my heart for supporting my small business and for sharing such a beautiful photo. I can’t wait to create another special piece for you! ✨💖

Noir Éclat Statement Ring | Burgundy Cocktail Ring | Aqua Crystal Ring | Oversized Polymer Clay Ring | Handmade Artisan Jewelry

Noir Éclat Statement Ring | Burgundy Cocktail Ring | Aqua Crystal Ring | Oversized Polymer Clay Ring | Handmade Artisan Jewelry
Jacqueline on Aug 3, 2026

5 out of 5 stars

Just looking at this fun, gorgeous ring makes me feel happy. The colors are some of my favs in my color palette & the stone is cut with a nice shimmer. And it’s big, which is just my style.

Antonina responded on Aug 3, 2026

Jacqueline, thank you from the bottom of my heart! 💕 Knowing that this ring makes you happy is the greatest compliment I could ever receive. Your beautiful photo absolutely made my day, and I’m so grateful you took the time to share your experience. I hope your Noir Éclat ring brings you smiles, confidence, and lots of sparkle every time you wear it. Thank you for supporting my small business! ✨🥹💖

Noir Éclat Statement Ring | Mint Green Crystal Ring | Lavender Cocktail Ring | Pastel Statement Jewelry | Handmade Oversized Ring

Noir Éclat Statement Ring | Mint Green Crystal Ring | Lavender Cocktail Ring | Pastel Statement Jewelry | Handmade Oversized Ring
Ginny on Jun 21, 2026

5 out of 5 stars

Can’t say how absolutely amazing these are so funky, classy, groovy all at the same time I’m in love!!!

Antonina responded on Jun 22, 2026

Ginny, this truly means so much to me ❤️ Reading your words made my whole day. Thank you so much for your kindness and support. Knowing that you love your rings makes me incredibly happy. I put so much love into every piece, and messages like yours remind me why I do this. Enjoy wearing them, beautiful ❤️✨

Sculptural Statement Ring, Oversized Faceted Crystal, Bold Chunky Jewelry

Sculptural Statement Ring, Oversized Faceted Crystal, Bold Chunky Jewelry
Ginny on Jun 21, 2026

5 out of 5 stars

Oh my…. Gorgeous amazing seller too!!!! Sending my friends your way thank you♥️♥️♥️

Antonina responded on Aug 3, 2026

Ginny, seeing your beautiful reviews always makes my day! 🥹💕 Thank you for trusting me with so many of your rings and for your endless kindness and support. The fact that you’re sending your friends my way truly means everything to a small business like mine. I hope every piece continues to make you smile every time you wear it. Thank you from the bottom of my heart! ✨💖

Rêve de Cristal Statement Ring | Icy White Crystal Ring | Opal Flake Ring | Iridescent Cocktail Ring | Handmade Polymer Clay Jewelry

Rêve de Cristal Statement Ring | Icy White Crystal Ring | Opal Flake Ring | Iridescent Cocktail Ring | Handmade Polymer Clay Jewelry

About MainlinePremiumUSA

MAINLINE | Handmade Jewelry & Personalized Gifts

Sales 38

On Etsy since 2025

MAINLINE | Handmade Jewelry & Personalized Gifts

✨ Creating Jewelry, Personalized Gifts & Beautiful Things That Make Life Shine

Hi! I'm Antonina, the creator behind MAINLINE.

MAINLINE was born from my love for creating beautiful, meaningful things by hand. What started as a creative passion has grown into a collection of handcrafted jewelry, personalized gifts, home accents, and unique keepsakes designed to make everyday moments feel a little more special.

Each piece is carefully created with attention to detail, quality, and individuality. From statement rings and sparkling accessories to custom gifts and personalized creations, my goal is to offer designs that stand out and become part of your story.

I believe the most memorable pieces are the ones that feel personal — the ring that makes you feel confident, the gift that brings a smile, or the keepsake that captures a meaningful moment.

Every order is made with care, creativity, and genuine appreciation for the people who choose to support handmade businesses.

Thank you for visiting MAINLINE and supporting my creative journey.

With love,

Antonina

Founder of MAINLINE

✨ Designed to Shine. Made to Be Remembered.

Shop policies

Last updated on

Accepted payment methods

Accepts Etsy Gift Cards and Etsy Credits

Returns & exchanges

See item details for return and exchange eligibility.

More information

Last updated on Dec 17, 2025

Frequently asked questions

Sizing details

All our items are true to size. We recommend choosing your regular size for the best fit.

MainlinePremiumUSA

Featured items

Self Care Gift Box – Relaxation Spa Set with Blanket & Candle

Handmade Gunmetal Silver Crystal Ring | Stardust Effect Cocktail Jewelry

Handcrafted Amalfi Lemon Ring, Italian Summer Jewelry, Citrus Faceted Centerpiece

Miami Glow Crystal Ring, Bold Colorful Cocktail Jewelry, Handcrafted Statement Piece

All items

Natural Reed Diffuser with White Flowers,Elegant Home Fragrance Minimalist Aromatherapy Gift,Spa Room Decor,Gift for Her,Mom or Housewarming

Handmade Crystal Statement Ring | Bold Cocktail Jewelry, Custom Size

Handmade Gunmetal Silver Crystal Ring | Stardust Effect Cocktail Jewelry

Handmade Teal Crystal Statement Ring | Peacock Blue Cocktail Jewelry (Oversized)

Noir Éclat Royal Blue Crystal Ring | Handmade Polymer Clay Statement Jewelry

Christmas Gift Box | Santa Socks, Tumbler, Candle, Bracelet Set

Luxury Self-Care Gift Box, Spa Relaxation Set, Soy Candle

Rêve de Cristal Statement Ring | Icy White Crystal, Iridescent Polymer Clay (Handmade)

Handmade Heart Gemstone Ring – Sculptural Statement Jewelry

Noir Éclat Statement Ring | White Crystal, Pearlescent Polymer Clay (Handcrafted)

Noir Éclat Burgundy Smoky Crystal Ring | Oversized Polymer Clay Statement Jewelry

Handmade Teal Crystal Statement Ring | Sculpted Polymer Clay Jewelry

Rêve de Cristal Yellow Crystal Cocktail Ring | Handmade Polymer Clay Statement Jewelry

Rêve de Cristal Black Polymer Clay Ring | Emerald Green Crystal Statement Piece

Handmade Statement Ring | Faceted Crystal Cocktail Ring | Artisan Jewelry (Custom Size)

Sculptural Statement Ring, Oversized Faceted Crystal, Bold Chunky Jewelry

Handmade Polymer Clay Statement Ring | Olive Green Crystal Cocktail Ring

Handmade Polymer Clay Cocktail Ring | Pink Setting, Emerald Green Crystal

Noir Éclat Baby Blue Crystal Ring | Handmade Polymer Clay Statement Jewelry

Luxury Crystal Bag Charm, Cross Purse Charm & Statement Keychain – La Parure by Mainline

Sigrún Oversized Smoky Crystal Ring, Burgundy High-Gloss Setting, Sculptural Statement Jewelry

Hand-Painted Italian Lemon Ring, Mediterranean Statement Jewelry, Summer Resort Wear

LA DIVA Oversized Crystal Cocktail Ring, Black White Dotted Statement Jewelry

Rêve de Cristal Statement Ring | Handmade Polymer Clay, Faceted Crystal Cocktail Ring

Personalized Teacher Gift Set, Custom Name Lavender Design, Appreciation Gift Box

Personalized Teacher Gift Set, Custom Name Lavender Design, Appreciation Keepsake

Christmas Gift Box – Cozy Holiday Set

Noir Éclat Black Crystal Statement Ring | Oversized Polymer Clay Cocktail Ring

New Parents Gift Box – Mommy and Daddy Tumblers, Baby Bodysuit and Socks

Luxury Christmas Gift Box – Holiday Candle, Tumbler & Socks

Luxury Christmas Spa Gift Box, Holiday Self-Care Set

Christmas Gift Box Set - Cozy Blanket, Tumbler, Bracelet, Candle & Socks

Pink Card Holder, 3D Crystal Embellished, Coquette Accessory, Girls Trip Gift

Handcrafted White Floral Crystal Ring, Fairycore Wedding Statement Jewelry

Handmade Pink Floral Statement Ring, Oversized Blush Coquette Jewelry

Nova Statement Ring, Oversized Faceted Stone Cocktail Ring, Handcrafted Fashion Jewelry

Announcement

Reviews

About MainlinePremiumUSA

Shop policies

Returns & exchanges

More information

Frequently asked questions

Sizing details