COCOMII opal-effect MagSafe iPhone case - boxy flat-edge shell with right-angle corners
COCOMII opal-effect MagSafe iPhone case - raised screen and camera edges
COCOMII opal-effect MagSafe iPhone case - shown in use
COCOMII opal-effect MagSafe iPhone case - built-in magnets for MagSafe chargers and accessories
COCOMII opal-effect MagSafe iPhone case - reinforced corners and anti-slip grip
COCOMII opal-effect MagSafe iPhone case - slim polycarbonate shell, drop tested to 10 feet
COCOMII opal-effect MagSafe iPhone case - iridescent opal-effect finish finish
COCOMII opal-effect MagSafe iPhone case - raised screen and camera edges
COCOMII opal-effect MagSafe iPhone case - slim polycarbonate shell, drop tested to 10 feet
COCOMII opal-effect MagSafe iPhone case - built-in magnets for MagSafe chargers and accessories
COCOMII opal-effect MagSafe iPhone case - reinforced corners and anti-slip grip
COCOMII opal-effect MagSafe iPhone case - iridescent opal-effect finish finish
COCOMII opal-effect MagSafe iPhone case - showing the raised camera cutout
COCOMII opal-effect MagSafe iPhone case - raised screen and camera edges
COCOMII opal-effect MagSafe iPhone case - slim polycarbonate shell, drop tested to 10 feet
COCOMII opal-effect MagSafe iPhone case - built-in magnets for MagSafe chargers and accessories
COCOMII opal-effect MagSafe iPhone case - reinforced corners and anti-slip grip
COCOMII opal-effect MagSafe iPhone case - iridescent opal-effect finish finish
COCOMII opal-effect MagSafe iPhone case - boxy flat-edge shell with right-angle corners

OPAL MAGSAFE RECTANGLE IPHONE CASE

Regular price$50
/
Model
Color
  • In stock, ready to ship
  • Inventory on the way
MAGSAFE RING Matte Lilac MAGSAFE RING Matte Lilac$40
PHONE CHARM WRISTLET Abalone Shell PHONE CHARM WRISTLET Abalone Shell$40

An opal-inspired finish brings radiant shimmer to COCOMII's signature rectangle iPhone case. Slim, durable, and MagSafe compatible, it pairs sparkling, light-catching detail with everyday protection and elegant style.

  • Opal-Inspired Finish: Luminous, light-catching shimmer with pearl-like clarity
  • Reinforced Rectangle Corners: Designed for maximum shock absorption
  • 10-Foot Drop-Tested: Proven protection against harsh falls
  • Enhanced Anti-Slip Grip: Confident handling, fewer slips
  • Elevated Edges: Shields your screen and camera lenses
  • Built-In MagSafe: Full accessory compatibility
Material
TPU, Polycarbonate
Finish
Glossy
Compatibility
Select iPhone 18 through iPhone 12 models
Protection
10-foot drop tested
MagSafe
Built-in magnet ring

★ 4.95 · 1953 customer reviews

Customers love the rectangle, flat-edge shape, saying it gives the phone a sleek, distinctive look and gets plenty of compliments. Many report the case arrives looking just like the product photos, with color and shape as ordered. Reviewers also praise the snug fit, drop protection through everyday tumbles, a finish that resists chips and scratches, and sturdy quality they call good value for the price.

“I love this case! It feels very heavy duty and has a nice luxurious look to it. I love the straight edges and not the typical rounded corners like most apple cases. The back is a hard plastic, not the soft flimsy silicone so if you are gonna add a pop socket, it will hold on tight. This is definitely worth the price.”

— Lily

“I can’t tell you how much I love this phone case… it’s just perfect. It looks so great and makes my phone look like a nice accessory. The case itself is solid and sturdy without being bulky. It’s actually very sleek. I’ll definitely be buying more of this brand.”

— Daniel

“Perfect case! Offers lots of protection and wireless charging capabilities.”

— Jess

Is the Opal case matte or gloss?

Gloss. The Opal case has a smooth, reflective, opal-inspired finish that shows the design with depth and wipes clean easily. Underneath, it has the same reinforced rectangle corners, raised screen and camera edges and MagSafe magnet ring as every other COCOMII case.

How protective is the Opal case?

The Opal case is drop-tested to 10 feet. Its rectangle corners are reinforced, because corners take most of the impact when a phone lands, and the edges are raised above both the screen and the camera lenses, so neither touches the surface when the phone is lying face down or face up on a table.

Is the Opal case MagSafe compatible?

Yes. The Opal case has a MagSafe magnet ring built into the back, so MagSafe chargers, wallets and the COCOMII ring holder snap on and hold. Wireless charging works with the case on, so there is no need to take it off to charge overnight. The ring also keeps the phone centred on a MagSafe charger.

Will the Opal case fit my iPhone?

Choose your iPhone model in the selector before adding the case to your cart. Shared-fit options include iPhone 18 Pro Max / 17 Pro Max, iPhone 18 Pro / 17 Pro, iPhone 15 Plus / 14 Plus, iPhone 14 / 13, and iPhone 12 / 12 Pro. All other listed options are designed for the model shown. If you're unsure which iPhone you have, check Settings → General → About.

What is a rectangle iPhone case?

A rectangle case has flat sides and right-angle corners instead of the rounded profile of most iPhone cases. The Opal case is one: the flat edges give your fingers a defined edge to grip, and the reinforced corners are part of how it passes a 10-foot drop test. Edges sit above the screen and camera, and MagSafe works through the back.

See all opal iphone cases and the other rectangle case finishes⁠.

Express
Free on every order. Usually arrives in 1 to 3 business days

Returns
Returns accepted within 30 days of delivery

Complete the Look

  • 5 stars: 1865 (95%)
  • 4 stars: 88 (5%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
A
Ashlyn H
Stylish, Unique & Secure Phone Case!

I absolutely love this phone case! The holographic shine is gorgeous—it catches the light beautifully and makes it stand out from every other case I’ve owned. I also love the rectangular shape, which feels so modern and unique. I’ve already gotten several compliments on it! The flexible plastic makes it easy to put on and take off, but it still feels very sturdy and protective. My phone feels completely secure inside the case. The MagSafe magnet could be just a little stronger for holding my pop socket accessory, but honestly, that’s a small detail compared to how fabulous this case is overall. If you want something that’s stylish, functional, and a bit different from the average phone case, this one is a winner. Highly recommend!

A
Anonymous
Better alternative to another brand cases

The “another brand” case company has a case just like this and it’s why I bought this cheaper version. It arrived with one day shipping - already beating another brand who claims their cases are made in NYC but it’s shipping from UTAH LOL. I got this case a few days ago and I’ve been in love with it because I couldn’t stand the otterbox case I had bought at T-Mobile to hold me over. I’ll admit I had ordered a another brand case that looks different to this one - I may keep this case on though until it doesn’t look cute anymore because it’s that good though. Either way 10/10 on this case!!! Edit: I received my another brand case. I am DISAPPOINTED AND SWEAR BY THIS CASE BRAND EVEN MORE. I paid 40 bucks for another brand to feel Less protective than this brand!! Sadly I did give this case to my clients mother but it’s okay - she was so happy it was worth it! I bought another one in black though so I’m excited to receive it and give my another brand case to a friend who will appreciate it more than me 🤣😅

k
kyndal
GORGEOUS

I LOVE this case! Recommend!

S
Susie Williams
Pretty case!

I love the look of this phone case! It fits my iPhone 16 Pro Max perfectly and looks super sleek. I really like the Rectangled edges. My husband actually makes fun of me and says my iPhone now looks like an Android. He's not exactly wrong, but I like the way it looks!The MagSafe works perfectly on my regular charger. I've dropped my phone a few times since putting this case on and haven't had any damage.Overall, this is a fun case and a great value!

B
BB
LOVE this case!

I ordered another case from this brand in white and loved it so much that I wanted the darker one as well. The quality is on par with much more expensive cases that look exactly the same. The case allows for easy and unobstructed access to all buttons on my iPhone 16 Pro with no issues whatsoever. Overall, this is a beautiful - high-quality case for a low price. I love it!!! *Highly* recommend!!

C
Casandra Mahoney
Gorgeous

I’ve never had a Rectangle case before and I liked the design of this one so figured I’d give it a shot.I’m IMPRESSED. The case feels incredibly durable, the back is *beautiful* (really looks like a composite of abalone pieces) and is just all around polished and classy looking. It does add some weight to the phone, but so far so in an unpleasant way.I’m super clumsy so we’ll see how it holds up to drops over time, but I think I might look for some more cases!I love this and definitely recommend!!

I
I'mTheHairLady
One of the coolest cases I’ve seen!

This case is perfect for me because one, I love all things beachy and this is pearly shell. So BEAUTIFUL. I’m super clumsy and always dropping my phone. I damage every single phone I get with every yearly upgrade. I am hoping that the reinforced corners will be a good solution for me. I’ve never seen this pretty and I just ordered the matching camera lens protector because I found it by pure luck. It is called Carveit camera cover case colorful shell design, pearl abalone natural white. I also have a screen protector in place, so my phone will be completely armored now 🤣This case is kinda flexible but also seems very strong. It is also magnetic charging base compatible!

K
Kat
Beautiful & Functional

This case fits the iPhone 16 Pro perfectly - cutouts, buttons and all! The back of the case is a hard sturdy plastic, which provides rigidity and protection. The sides are a high quality tpu/silicone type material that flexes and makes it easy to install and remove the case from your phone. On top of that, the opalescent back is gorgeous in or out of the light! No issues with magsafe charging or with magnetic accessories either. This case is excellent for this price point - just get it!!

F
FancyPants
Phone case

This Rectangle phone case is both a functional and cute way to protect my iPhone 16 ProMax. The Rectangles look is unique and I’ve gotten multiple compliments on it. I love the colors included in the case as well. I would definitely recommend this case and others by Cocomii as a nice way to “dress up” your phone without breaking the bank.

A
Angela Moore
Better in person.

It looks very nice in person. Very shiny, it some what looks like a design that is under a clear resin top coat (even though that’s not what it actually is). I Will order more from this company. Also, the packaging was great, very sturdy box.

T
Tinkerbell
Stunning!

I NEVER spend this much on a phone case but it’s totally worth every penny!It’s beautiful and the colors are gorgeous.It’s super shiny and I love that it’s Rectangle.The only thing I don’t like is the name brand at the bottom but it is in gold lettering so it blends in nicely with the colors of the case so that definitely is not a deal breaker.Super easy to put on and all the buttons & openings line up perfectly.

T
Tinkerbell
Stunning!

I NEVER spend this much on a phone case but it’s totally worth every penny!It’s beautiful and the colors are gorgeous.It’s super shiny and I love that it’s Rectangle.The only thing I don’t like is the name brand at the bottom but it is in gold lettering so it blends in nicely with the colors of the case so that definitely is not a deal breaker.Super easy to put on and all the buttons & openings line up perfectly.

S
Sarah H
Dupe

This is a really good dupe for another popular brand that makes the Rectangled off phone cases. I think this would make a good gift because it comes so nicely packaged. My only complaint is the logo on the case is much bigger and obvious than in the stock photo.

S
Sarah H
Dupe

This is a really good dupe for another popular brand that makes the Rectangled off phone cases. I think this would make a good gift because it comes so nicely packaged. My only complaint is the logo on the case is much bigger and obvious than in the stock photo.

D
Dr. Johnna
Didn’t last 3 months

Update: the case didn’t last 3 months. Started to peel and break. :( Initial review: I’m so surprised by this iPhone 15 pro case. Great quality. I thought it was going to be cheapy and plastic, it’s definitely much better than expected. Feels nice, looks nice, durable and the magnet is strong enough in my jeep and doesn’t fall off the dash holder! Highly recommend if you’re going for a chic modern look. So fun

N
Natalie
Way better than expected

It’s hard enough and high quality print. Looks great

B
Brittany k o
Great looking case

I love this phone case. It’s light and flexible but still very sturdy. It doesn’t feel or look cheap at all. It’s a little translucent. I think it ads to the beauty of the case. My toddler has thrown myPhone a few times and it held up nicely. I will be purchasing from this buyer in the future

S
SarahShops
Very pretty case

This is a very pretty phone case in person.I ordered the light pink color and it is very, very light pink. In certain lights it almost looks white or translucent, but it is indeed a very soft pink.I really like the Rectangle case. I think that the shape is classy and a little different. Also, it has some extra cushion on the corners in case I drop it.This case works great with my MagSafe chargers in my car and at home. The only thing I may consider is getting another protector for my camera lenses since they’re not as protected with the Rectangle cut-out. But overall, I really like this case. I think it protects my phone well and it looks really nice in person.

S
SarahShops
Very pretty case

This is a very pretty phone case in person.I ordered the light pink color and it is very, very light pink. In certain lights it almost looks white or translucent, but it is indeed a very soft pink.I really like the Rectangle case. I think that the shape is classy and a little different. Also, it has some extra cushion on the corners in case I drop it.This case works great with my MagSafe chargers in my car and at home. The only thing I may consider is getting another protector for my camera lenses since they’re not as protected with the Rectangle cut-out. But overall, I really like this case. I think it protects my phone well and it looks really nice in person.

A
Aleia
Fits great!

I needed a new mag safe friendly case and was excited when I saw this pretty case! It had easy installation and it isn’t terribly hard to remove your phone from either. I like the Rectangle look and it is very pretty. It’s shiny and is easy to find in my purse. It works well with my MagSafe charger in my car and it fits perfectly. Overall very happy with this case!

A
Aleia
Fits great!

I needed a new mag safe friendly case and was excited when I saw this pretty case! It had easy installation and it isn’t terribly hard to remove your phone from either. I like the Rectangle look and it is very pretty. It’s shiny and is easy to find in my purse. It works well with my MagSafe charger in my car and it fits perfectly. Overall very happy with this case!