American Express

276 reviews

Sea Blue Square Halo Moissanite Ring (1.0ct)

Elevate your everyday style with the serene oceanic beauty of this sea blue halo ring.

Ring Size

International Ring Size Chart

US/CA	UK/AU	EU	Circumference (mm)	Inside Diameter (mm)
3	F	44	44.2	14.1
3.5	G	45	45.5	14.5
4	H	47	46.8	14.9
4.5	I	48	48.0	15.3
5	J ½	49	49.3	15.7
5.5	K ½	51	50.6	16.1
6	L ½	52	51.9	16.5
6.5	M ½	53	53.1	16.9
7	O	54	54.4	17.3
7.5	O ½	56	55.7	17.7
8	Q	57	57.0	18.1
8.5	Q ½	58	58.3	18.5
9	S	60	59.5	18.9
9.5	S ½	61	60.8	19.4
10	T ½	62	62.1	19.8
10.5	U ½	63	63.4	20.2
11	V ½	65	64.6	20.6
11.5	W ½	66	65.9	21.0
12	Y	67	67.2	21.4

How to Measure Your Ring Size

Method 1: Measure an Existing Ring (Recommended)

Select a ring that already fits comfortably on your desired finger.
Use a ruler to measure the inside diameter (the distance straight across the inside of the ring) in millimeters.
Match your measurement to the "Inside Diameter" column in our chart above.

Method 2: Measuring Your Finger

Wrap a flexible measuring tape or a thin strip of paper around the base of your finger.
Mark the exact spot where the ends meet and measure that length in millimeters.
Match this length to the "Circumference" column in our chart above.

Pro Tips for the Perfect Fit ✨

Timing matters: Measure your finger at the end of the day when it is slightly larger.
Caught between sizes? We always recommend sizing up for the most comfortable fit.
Wider bands feel tighter: If you are choosing a thicker ring style, consider going up half a size.
Still unsure? We’re here for you. Reach out to our team at support@cofuze.com for personalized sizing advice.

Note: UK and Australian ring sizes are the same. US and Canadian sizes are also identical.

Free Worldwide Shipping

30-Day Returns

1-Year Warranty

✔️ 2.25g solid S925 silver base.

✔️ 1.0ct round sea blue moissanite.

✔️ Classic square paved halo setting.

✔️ Anti-tarnish rhodium finish.

The sea blue color is absolutely breathtaking. It has such a calming, oceanic vibe that instantly boosts my mood when I look down at my hand.

Emily R.

Shipping Information

We offer free, tracked worldwide shipping on all jewelry orders. Processing time: 1–3 business days Estimated delivery to the United States, United Kingdom, Canada, Australia, and most EU countries: 5–9 business days Estimated delivery to other countries/regions: 7–14 business days You’ll receive a tracking link by email as soon as your order has been shipped.

Return Policy

We want you to feel completely confident ordering from CoFuze. If you’re not in love with your jewelry, you can request a return within 30 days of delivery. Items must be unworn and in their original packaging. If your item arrives damaged or there is an error on our side, we will replace it or issue a refund at no extra cost. For change-of-mind returns (for example, if the style or size is not right), customers are responsible for the return shipping cost. For full details, please see our Refund & Return Policy.

Oceanic Square Halo Sea Blue Moissanite Ring (1.0ct)

Calming Ocean Brilliance

Embrace the calming beauty of the ocean. Crafted from 2.25g of solid S925 silver, this ring features a 1.0ct sea blue moissanite surrounded by a brilliant square halo. It delivers a vibrant, sophisticated sparkle that elevates your everyday style and boosts your confidence.

Square Halo Design

Vibrant everyday sophisticated elegance.

✨

Ocean Blue

1.0ct VVS1 sea blue moissanite.

🌿

Solid Silver

2.25g hypoallergenic solid pure silver.

💍

Square Halo

Brilliant square paved diamond illusion.

🛡️

Premium Finish

Durable anti-tarnish silver plated finish.

Customers love the sparkle

Real feedback from happy buyers

Sophia L.

Verified Buyer

Placing a round 1.0ct stone inside a square halo is genius. It gives the ring a vintage cushion-cut look and makes it appear massive!

Olivia T.

Verified Buyer

At just 2.25 grams, this is the most comfortable statement ring I own. The band is smooth and lightweight, perfect for wearing all day at work.

Mia C.

Verified Buyer

I love that the band itself is plain silver. It balances the extravagant square halo perfectly, keeping the ring elegant rather than overly flashy.

Isabella M.

Verified Buyer

The basket sits high enough that my silver paved wedding band slides right underneath it perfectly flush. An incredibly chic bridal stack.

Ava J.

Verified Buyer

I wash my hands constantly and the anti-tarnish plating is top-tier. The silver hasn't dulled and the blue stone is still crystal clear.

Chloe S.

Verified Buyer

I get terrible rashes from cheap rings. This solid S925 base is completely safe for my sensitive skin. I've worn it for weeks with zero issues.

Lily W.

Verified Buyer

Do not let the color fool you, this stone throws insane rainbow fire in the sunlight. The VVS1 clarity makes the blue look so deep and rich.

Grace H.

Verified Buyer

The craftsmanship is flawless. It looks exactly like a $2500 custom blue diamond ring from a high-end luxury boutique.

Zoe K.

Verified Buyer

I get stopped at the grocery store constantly by people admiring the unique color. It is a massive conversation starter.

Stella B.

Verified Buyer

Ordered my normal size 6 and the fit is incredibly accurate. It hugs my finger perfectly without sliding around :) 🔥

Harper D.

Verified Buyer

I wanted an alternative engagement ring. This vibrant sea blue moissanite feels uniquely "me" and stands out from standard clear stones.

Hazel P.

Verified Buyer

Even with the square halo and all the tiny paved stones, the setting is polished beautifully smooth. It never catches on my sweaters.

Violet N.

Verified Buyer

The high-end jewelry box it came in made the unboxing experience feel so luxurious. It truly feels like a premium designer purchase.

Aurora F.

Verified Buyer

It adds the perfect sophisticated pop of color to my office wear. It looks highly professional but gives me a little extra sparkle of confidence.

Ethan G.

Verified Buyer

She loves the ocean and blue is her favorite color. Proposed with this and the square halo design completely blew her away. Huge success.

Noah V.

Verified Buyer

The included high-end box was perfect. I didn't have to wrap a thing. The 2.25g ring felt solid and the blue color looked incredibly expensive.

Liam C.

Verified Buyer

She wears it every single day. The quality is fantastic, the stone is very secure in the halo setting, and it hasn't tarnished at all.

Your Questions, Answered

Details about color and design.

Will the sea blue color fade over time?

No. The mesmerizing sea blue hue is inherent to the moissanite crystal and will never fade, cloud, or change color with everyday wear.

Does the square halo make the ring look larger?

Yes. The brilliant square-shaped halo elegantly frames the round 1.0ct center stone, creating a stunning illusion of a much larger, vintage-inspired diamond.

Is the 2.25g ring comfortable for daily typing?

Absolutely. Weighing approximately 2.25g with a sleek, plain silver band, it provides a lightweight, highly comfortable fit that won't interfere with your daily activities.

Is the solid silver safe for sensitive skin?

Yes. Crafted from pure solid 925 sterling silver, the ring is 100% hypoallergenic, lead-free, and nickel-free, ensuring zero irritation.

Can I stack this with my wedding band?

Yes, the elevated halo basket allows a classic plain or thin paved wedding band to sit comfortably flush against it for a gorgeous stacked look.