KONSTANTINO
Hydra Poseidon Silver Gold Ring
Pick-up service available in PARIS and SAINT-TROPEZ
Usually ready in 24 hours
Description
The Hydra Poseidon ring, designed by Konstantino, features a signet ring style with a square onyx stone set in a Silver yellow gold mount. Its design offers a masculine piece of jewelry where the contrast of metals highlights the intensity of the black stone. Onyx is known for strengthening grounding, protecting against negative energies, and stimulating inner strength.
- Materials: Yellow Gold, Silver
- Gold type: 18 ct
- Metal weight: 20.5 g
- Stones: Onyx
Delivery
Delivery is free for orders over €500.
Delivery methods :
- DHL Express: within 24 hours in France, within 48 hours in the USA and the rest of the world.
- Delivery by courier: Paris Intra-muros
- Free store pickup: Paris, Deauville, Saint-Tropez, subject to availability.
Returns
Returns are free for all orders orders over €500.
For orders under €500, the cost of returns will be deducted from your refund:
- 30€ from the European Union
- 45€ for the rest of the world
You have 14 days after receipt of your parcel to return it*.
We will process your return within 5 working days.
Returns are not accepted on special orders.
This applies to online purchases only.
See FAQ for more information.
*Custom-made jewelry cannot be returned.
Contact us
Instagram: @madlords
A - WITH A RING THAT FITS YOUR FINGER
Measure the inside diameter, then refer to the table below to find the right ring size for your finger.

B - WITHOUT RING BUT WITH TAPE MEASURE
The circumference figure in mm corresponds to your finger size. RPlease refer to the table below to find out which ring size is right for you.
C - USING A RING GAUGE
Place your ring on the hoop. The inner rim of the ring should be aligned with the outer rim of the hoop. If your ring is between two sizes, Mad Lords recommends you choose the larger one.
RING SIZE GUIDE CHART
| Inside diameter in mm | Circumference Size FR | UK size | US size |
| 13 | 41 | D | 2,25 |
| 13,4 | 42 | E | 2,5 |
| 13,7 | 43 | E 1/2 | 2,75 |
| 14 | 44 | F | 3 |
| 14,3 | 45 | G | 3,5 |
| 14,6 | 46 | H | 3,75 |
| 15 | 47 | H 1/2 | 4 |
| 15,3 | 48 | I 1/2 | 4,5 |
| 15,6 | 49 | J 1/2 | 5 |
| 15,9 | 50 | K 1/2 | 5,5 |
| 16,2 | 51 | L | 5,75 |
| 16,5 | 52 | M | 6 |
| 16,8 | 53 | N | 6,5 |
| 17,1 | 54 | O | 7 |
| 17,4 | 55 | P | 7,5 |
| 17,7 | 56 | P 1/2 | 7,75 |
| 18 | 57 | Q | 8 |
| 18,3 | 58 | R | 8,5 |
| 18,6 | 59 | S 1/2 | 9 |
| 18,9 | 60 | S | 9,5 |
| 19,2 | 61 | T | 9,75 |
| 19,5 | 62 | T 1/2 | 10 |
| 20 | 63 | U 1/2 | 10,5 |
| 20,1 | 64 | V 1/2 | 11 |
| 20,4 | 65 | W 1/2 | 11,5 |
| 20,7 | 66 | X | 11,75 |
| 21 | 67 | Y | 12 |
| 21,3 | 68 | Z | 12,5 |
| 21,6 | 69 | Z+1 | 13 |
| 22,3 | 70 | Z+1 | 13 |
| 22,6 | 71 | Z+2 | 13,5 |
| 23,25 | 73 | Z+3 | 14 |
If your size is not available, please contact us.
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