our quality promise
We understand that these pieces aren’t just jewellery – they’re symbols of love, commitment, and the moments that matter most. As proud members of the National Association of Jewellers, we hold ourselves to the highest standards of quality and care.
Our pieces feature conflict-free simulated diamonds, hand-set stones for a flawless finish. Our Promise stones boast a 2.18 refractive index, MOHS rating of 8.5. To compare: Diamonds have a 2.41 refractive index and MOHS rating of 10, Swarovski Crystals sit at around 1.6 refractive index, MOHS 6-7
Our silver pieces are plated in rhodium - one of the world’s most precious metals, known for its mirror-like shine and exceptional resistance to tarnishing.
Our gold jewellery is crafted using gold vermeil, a technique that requires a thick layer of 18k gold over sterling silver. In fact, our plating is up to 25 times thicker than standard gold-plated jewellery, giving each piece a rich, lasting finish.
Every design is then sealed with an e-coating, adding an invisible layer of protection to preserve its beauty over time.
Member of The National Association of Jewellers
Member of The National Association of Jewellers
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Promise stones come in sterling silver with rhodium plating OR 2.5 microns of 18ct gold-plating, known as Gold Vermeil
All pieces are engraved with 925 for metal authenticity and our "The Promise Co" engraving for quality assurance
Our pieces feature conflict-free simulated diamonds, hand-set stones for a flawless finish
Our Promise stones boast a 2.18 refractive index, MOHS rating of 8.5, perfect for everyday wear with care
To compare: Diamonds have a 2.41 refractive index and MOHS rating of 10, Swarovski Crystals sit at around 1.6 refractive index, MOHS 6-7
We aim to provide diamond-like sparkle at a fraction of the cost, using our exclusive clear or emerald cut patterns for enhanced clarity
(Pronounced Ver-may!)
Gold Vermeil is not to be mixed up with normal gold plating… it is a thick layer of solid 18ct Gold on top of Sterling Silver base, meaning you get the look and feel of solid gold at a fraction of the price!
We use 18ct gold that is a minimum of 2.5 microns thick, as required by the Federal Trade Commission to classify vermeil, layered over sterling silver.
Did you know? Plating as thin as 0.1 microns can still be classed as Gold Plated!? Our plating is 25 times thicker than this (crazy right)
Gold Vermeil is resilient, but for lasting shine:
- Minimise exposure to sweat and water
- Remove before exercising or washing hands
- Avoid perfumes and lotions
- Be gentle when using hand sanitiser
- Clean with a dry cloth
- Store in a dry place when not worn for daily protection
- Do not wear your ring in the pool, harsh chemicals and Chlorine can cause corrosion
925 Sterling Silver is an alloy made of 92.5% pure silver and 7.5% copper. To make sure your Sterling Silver
On top of a sterling silver base we plate jewellery in rhodium, which makes your ring extra durable and shiny. Rhodium is one of the costliest precious metals due to its rarity
Sterling Silver is perfect for everyday wear, but to ensure your ring lasts as long as possible:
- Remove before exercising, washing hands, or showering
- Polish gently with a silver cloth for tarnished jewellery
- Skip perfumes and lotions while wearing
- Be cautious with hand sanitiser
- Store in a dry place when not worn
- Do not wear your ring in the pool, harsh chemicals and Chlorine can cause corrosion