Size Chart
| US | UK / Australian Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4.5 | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5.5 | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6.5 | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7.5 | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8.5 | Q½ | 18.5 | 58.3 |
| 9 | R½ | 19.0 | 59.5 |
| 9.5 | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10.5 | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11.5 | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z+1 | 22.2 | 69.7 |
| KA Size | Wrist Diameter (in) | Wrist Diameter (cm) |
|---|---|---|
| Extra Small | 4.76 – 5.25 | 12.1 – 13.3 |
| Small | 5.26 – 5.75 | 13.4 – 14.6 |
| Medium | 5.76 – 6.25 | 14.6 – 15.9 |
| Large | 6.26 – 6.75 | 15.9 – 17.1 |
| Extra Large | 6.76 – 7.25 | 17.2 – 18.4 |
| Extra Extra Large | 7.26 – 7.75 | 18.4 – 19.7 |
| Extra Extra Extra Large | 7.76 – 8.25 | 19.7 – 21.0 |
| Length (in) | Length (cm) |
|---|---|
| 16 | 40.50 |
| 18 | 45.75 |
| 20 | 50.75 |
| 24 | 61.00 |
| 30 | 76.25 |
| 36 | 91.50 |
HERE TO HELP
Have questions or need assistance? Contact us through any of the options below
Feel Free To Reach Out—we're Here For You!
Explore our gift collections for your loved ones!
Why Klara Allen?
-
Lifetime Warranty
-
30-Day Easy Returns
-
1-Year Free Cleaning
-
Diamond Upgrade
-
Free Resizing
-
Earn Reward Points
Featured Collections
Explore Our Collection
Let customers speak for us
Ladies! Don’t waste your money on a real diamond, this is absolutely perfect and a great price! 😍This ring is so beautiful and the seller is very accommodating. Thank you so much ☺️
Beautiful, seriously this is my favorite.
The ring is perfect and exactly as described! I got size 1 1/2 for a pinky ring and the team was great during the process
Beautiful ring and wonderful service, very helpful and really nice to send video update before shipping, love the ring!!
Allen was always very attentive and responded quickly. The ring is so beautiful and elegant. We’re so happy.
Gorgeous! It was absolutely perfect!
I got this ring as my upgrade and when I tell you I have never gotten this many compliments in my life I am not kidding. I look down at my ring way more than I should to admire it and cannot recommend this enough for anyone in the market looking for a lab made ROCK 😍
An absolutely stunning solitaire ring, for my 20th Wedding Anniversary from my darling Hubby! It takes my breath away!!! So beautifully cut and crafted! The sparkle is mesmerising!! And goes incredible well with the eternity ring. Quality, Service and Price are outstanding... Thank you Klara Allen
super quick responses and genuinely my dream ring
I actually have no words! Absolutely amazing quality. Literally the ring of my dreams.
I'm way beyond happy with my ring, it looks even better in person. It arrived earlier than expected which was a bonus.
Allen was very professional and kept communicating with me through the whole process. The ring is beautiful and exactly what I wanted for my love
Love my new ring! It is as described and it sparkles a lot in the sun, it’s beautiful
This is my first order here in Klara Allen and I am so excited. The seller was incredibly nice and tried to find the right product for me. Since I have very narrow fingers, the seller offered me an additional product for the rings that I can use if the ring is too big. And what can I say...The rings are super beautiful and the reduction in size means I can wear the rings on another finger. I am so in love with my jewelry. Thank you 😍
Will buy again! Thank you
