Princess-Cut Diamond Half Eternity Ring
The Karat Store · Handcrafted in Solid Gold
Princess-cut diamonds take centre stage in the Princess-Cut Diamond Half Eternity Ring, crafted in solid 10ct, 14ct or 18ct gold. The diamonds are graded G colour, SI clarity, for a bright, clean sparkle. The square princess cut has crisp corners and lively brilliance for a clean, modern look. Stones sit across the top half of the band, so the sparkle is where you see it and the back stays plain and comfortable.
It makes a meaningful anniversary, push present or wedding ring, and it stacks beautifully with an engagement ring. Available in yellow, white or rose gold and UK ring sizes D to Z+1.
This ring's half-eternity design is the perfect marriage of luxury and practicality, ideal for any and all occasions. Whether one chooses the 14ct or solid gold or the brighter shine of platinum, a quality and craftsmanship are guaranteed. At 3.3mm wide and 2mm high, the band offers comfortable yet striking presence on the finger, allowing for it to stand out while complementing any ensemble.
Yes. Diamond is 10 on the Mohs scale, the hardest natural material, so it is ideal for jewellery you wear every day.
The square princess cut has crisp corners and lively brilliance for a clean, modern look.
Stones sit across the top half of the band, so the sparkle is where you see it and the back stays plain and comfortable. A half eternity ring is easier to resize later and more comfortable between the fingers. A full eternity ring has stones all the way round but is difficult to resize.
18ct gold (75% pure gold) has the richest colour and a luxurious weight. 14ct gold (58.5% pure gold) is the most popular balance of colour, durability and value. 10ct gold (41.7% pure gold) is the hardest-wearing and most affordable option. Every option is solid gold all the way through, not plated.
White gold is finished with a bright rhodium plating. Over time, usually every 12 to 18 months with daily wear, it can soften to a warmer tone. Any jeweller can re-plate it quickly to restore the bright white finish.
This ring is made to order in UK sizes D to Z+1, so it is crafted to your size from the start. It can usually be resized later by a jeweller by one or two sizes. If you are unsure of your size, a local jeweller can measure you for free, or see our ring size guide.
Each piece is made to order. We craft and dispatch it within 4 working days, and tracked delivery usually takes around 4 more working days, so allow about 8 working days in total. Delivery is free and all taxes are included in the price shown, so there is nothing extra to pay when it arrives.
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Every piece is cast and finished by hand in genuine solid gold — choose 10ct, 14ct or 18ct in yellow, white or rose gold. Never plated, never filled, made to be worn for a lifetime.
Stones are conflict-free: lab-grown diamonds, moissanite and hand-selected natural gemstones, each set and polished by our artisans.
Your jewellery is crafted to order in your chosen gold colour, carat and size.
All ring sizes are shown in UK sizes (letters), and every size is the same price within each gold colour and carat. Half sizes (e.g. L½) are available in the size selector.
| UK | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|
| H | 14.7 | 46.1 |
| I | 15.1 | 47.4 |
| J | 15.5 | 48.7 |
| K | 15.9 | 49.9 |
| L | 16.3 | 51.2 |
| M | 16.7 | 52.5 |
| N | 17.1 | 53.8 |
| O | 17.5 | 55.0 |
| P | 17.9 | 56.3 |
| Q | 18.3 | 57.6 |
| R | 18.7 | 58.9 |
| S | 19.1 | 60.2 |
| T | 19.6 | 61.4 |
| U | 20.0 | 62.7 |
| V | 20.4 | 64.0 |
| W | 20.8 | 65.3 |
| X | 21.2 | 66.5 |
| Y | 21.6 | 67.8 |
| Z | 22.0 | 69.1 |
| Z+1 | 22.4 | 70.4 |
Not sure of your size? Measure the inside of a ring that already fits, use a ring sizer, or visit a local jeweller for a professional sizing. We are happy to help — get in touch before you order.
Remove your jewellery before swimming, cleaning or the gym. Clean gently with warm water, mild soap and a soft brush, then dry with a lint-free cloth. Store each piece separately to prevent scratches.
Solid Gold, Always
Crafted in genuine 10ct, 14ct or 18ct gold — never plated, never filled.
Made to Order
Handcrafted for you and dispatched within 4 working days.
Conflict-Free Stones
Lab-grown diamonds, moissanite and hand-selected gemstones.
Personal Guidance
Questions on ring size, gold or stones? We are here to help.
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