Black Square


Natural black diamond. Unique asymmetrical shape, made of solid gold. It comes beautifully packed in our luxury box.

  • 14K or 18K gold
  • 0.4 ct black diamond, 4.0 x 4.0 mm
  • Little diamond: 1.3 mm, white
  • Ring: 2.5 mm wide

Item will be ready to ship in 2-15 working days, depending, if it is in stock. 

If you have any special requests regarding this product (size, material, dimensions), please contact us. We can always customise your order.


How to measure my ring size?

The best way to measure your exact ring size is to head over to a local jewelry store/workshop and figure it out.

When to measure my finger?

Do not measure a finger when it is cold or too hot as this can have a significant effect on a ring size. For example, when your fingers are cold they can be at least half a size smaller.

How should the ring fit?

  • Your ring should fit comfortably, so that it is tight enough not to fall off, but loose enough to slide over your knuckles 
  • Remember that no two hands are exactly alike. A ring worn on one finger on your left hand won’t fit perfectly on the same finger on your right hand.

Is the size equal for all ring models?

The style of the ring also affects the size: for a thinner ring you should consider a smaller size than for a wider ring.

What if I'm buying a gift?

If you are buying the ring as a gift, please contact us and we will try to help to figure out the right size by requesting additional information from you like hand photos, body height, etc.

Can’t decide between two sizes?

If you can't decide between two sizes, we suggest you choose larger rather than smaller size.


 Inner diameter (mm) UK / Australia US / Canada
12 1/2 A
12.5 1 1/4 B 1/2
13 1 3/4 C 1/2


2 1/4 D 1/2


3 F


3 1/2 G


4 H 1/2


4 1/2 J


5 1/2 K 1/2


6 L 1/2


6 1/2 M 1/2


7 O


8 P 1/2


8 1/2 Q 1/2


9 R 1/2


9 1/2 S 1/2


10 U


11 V 1/2


11 1/2 W 1/2


12 X 1/2


12 1/2 Z 1/2

Some items are in stock and ready for delivery right away, but some requires production. Before making the purchase, please check the "Production time" section in each product's description.

If you're in a hurry, feel free to contact us and clarify if the product is ready in stock / or the exact production time: 

We offer worldwide delivery with courier (except Russia). Unfortunately deliveries to Ukraine are not possible at this moment.


Delivery cost & time


 5 eur
TNT courier
Estonia & Lithuania  10 eur
TNT courier

EU 20 eur
TNT courier


USA 30 eur
TNT courier
+ any local taxes and duties
Australia 30 eur
TNT courier

+ any local taxes and duties

Rest of the world
30 eur
TNT courier
+ any local taxes and duties