Is The Night Sky Necklace Worth the Money? An Honest Review
Finding a gift that feels truly special can be difficult. Personalised jewellery often feels like the right answer. It is not something you just pick off a shelf. It is made for one person. It captures a moment in time that matters to both of you.
One option you might have seen on social media is the Green Onyx Silver Bezel Necklace from The Night Sky. It shows a specific night sky from a date and place you choose. It sounds romantic. It sounds unique. But is it actually worth your money? Is the quality good? Will it last?
I am going to look closely at this night sky necklace and check the materials they use. I will see what other customers say about it and review the shipping times and return policy. By the end of this review, you will know if this necklace is the right gift for you.

What is The Night Sky Necklace?
The main idea behind this necklace is simple but clever. You pick a date. You pick a location. It could be a birthday. It could be the night you met your partner. It could be the birth of a child. I chose the date and place where Stuart asked me to marry him.
The company uses software to determine exactly how the stars looked that night from that spot on Earth. They take that map of the stars and etch it onto a piece of jewellery.
For my night sky necklace, they etched the stars onto a small, round piece of Green Onyx. This stone is set in a Sterling Silver rim. This rim is called a “bezel” setting. It holds the stone safely in place.
The result is a small, dark-green pendant with tiny silver markings that represent your special stars. It is a way to wear a memory. It is a secret map that only you understand.

A Closer Look at the Night Sky necklace Materials
When you buy jewellery online, you cannot touch it. You cannot feel its weight. You have to trust the description. So, let us break down exactly what this night sky necklace is made of.
The Stone: Green Onyx
The centrepiece of this necklace is Green Onyx. This is a semi-precious stone. It is not just a piece of green glass or plastic. It is a real mineral.
Green Onyx is a type of Quartz. It has a smooth, wax-like feel. It is known for its rich, deep green colour. Some people believe gemstones have special meanings. According to Angara, Onyx symbolises protection. It is said to absorb negative energy. It also symbolises courage and power. Whether you believe in that or not, the thought behind it is nice.
But let us talk about durability. You want a necklace that lasts. We measure the hardness of stones using the Mohs scale. A diamond is a 10. It is very hard. Talc (like in baby powder) is a 1. It is very soft.
Green Onyx scores between 6.5 and 7 on the Mohs scale. This makes it a reasonably tough stone. It is durable enough for everyday wear, but you should still be careful. It can get scratched if you rub it against something harder, like a diamond ring or a concrete wall.
The Metal: Sterling Silver
The metal part of this night sky necklace is Sterling Silver. You might see this written as “925 Silver.” This means the metal is 92.5% pure silver.
Why not use 100% silver? Pure silver is actually too soft. If you made a necklace out of it, it would bend and lose its shape very quickly. So, jewellers mix in a little bit of another metal, usually copper. This makes the silver strong enough to hold its shape and grip the stone.
There is one thing you need to know about Sterling Silver. It tarnishes. Tarnish is that dark, dull layer that appears on silver over time. This is not a defect. It is basic chemistry.
Tarnish happens when silver reacts with the air. Humidity and heat can speed it up. Even things like onions, eggs, and rubber bands contain sulfur, which turns silver dark.
The good news is that tarnish is easy to clean. I will talk about how to care for this night sky necklace later in this post. But you should know that buying silver means you will need to polish it from time to time.

How the Customisation Works
One of the big selling points of this night sky necklace is how easy it is to design. You do not need to be an astronomer. You do not need to know where the stars were. The website does the work for you.
When you go to The Night Sky website, you will see a creation tool. Here is what you do:
- Select your location: You can type in a city, a town, or even a specific street address. The map will find the exact coordinates (latitude and longitude).
- Select your date and time: You enter the day, month, and year of your special memory. You can even put in the time of day.
- Choose your elements: You can choose to show the constellation lines (the shapes the stars make) or just the stars themselves. You can also choose to add a “grid”, which makes it look a bit more scientific.
As you change these settings, the night sky necklace image on your screen changes. You can see exactly what the star map will look like on the Green Onyx. This is a very helpful feature. You are not guessing what you will get. You can see it before you pay.
The pendant itself is about 25mm wide. That is roughly the size of a 10 pence coin or a US quarter. It is big enough to see the etching, but not so big that it feels heavy.

Shipping and Delivery
Since this night sky necklace is a custom item, they cannot just pull it off a shelf and post it to you. They have to make it first. This means you need to plan ahead. This is not a last-minute gift; you can buy it the day before a birthday.
Here is what you can expect regarding shipping times, based on The Night Sky’s help page:
If you are in the UK:
- Standard Shipping: This takes 5 to 6 business days. It costs £10.
- Express Shipping: This takes about 3 business days. It costs £25.
If you are in the USA:
- Standard Shipping: This takes 5 to 6 business days. It is currently free.
- Express Shipping: This takes 3 to 5 business days. It costs $20.
If you are in Europe (Zone 1):
- Countries like France, Germany, Spain, and Italy.
- Standard Shipping: 8 to 12 business days. It is free.
- Express Shipping: About 6 business days. It costs €18.
If you are in Australia or New Zealand:
- Standard Shipping: 7 to 12 business days. It is free.
- Express Shipping: 5 to 6 business days. It costs $25 AUD.
One important note: “Business days” means Monday to Friday. It does not include weekends. So, if something takes 5 business days, that is actually a full week. If you order your night sky necklace on a Friday night, they probably won’t start making it until Monday. Always give yourself a little extra time just in case.

Why Do I Think?
I absolutely love my night sky necklace. It is a perfect way to remember the special date I was proposed to, which was so unexpected and magical. I am thoroughly impressed by the quality, and I did almost cry when it arrived. It is beautiful and a lovely colour which fits exactly my kind of style or vibe. I am tempted to get another one after our wedding day!
What Do Other Customers Say?
It is easy for a company to say its product is great. It is much more useful to see what real people think. I looked at reviews on Trustpilot to get the full picture and see if everyone else’s experience was like mine.
The Night Sky has a very high score of 4.7 out of 5 stars. This is based on over 29,000 reviews of a mixture of products not just the night sky necklace. That is a lot of feedback. It tells me that most people are very happy with what they bought.
The Good Feedback
Many customers talk about the emotional impact of the gift. It is common to read reviews in which the recipient of the gift cried happy tears. People love that it is unique. They like that it is not something thousands of other people are wearing.
Customers also praise the quality of the “etching.” The stars are carved into the stone, which gives it a nice texture. It looks expensive and well-made.
Here are a few things people seem to love the most:
- The sentiment: It feels personal and thoughtful.
- The packaging: It comes in a nice box, which makes gifting easy.
- The accuracy: People who know about astronomy say the star maps look correct for the dates they chose.
The Not-So-Good Feedback
No product is perfect. There are some negative reviews, and it is important to pay attention to them.
Some customers mentioned shipping delays. Even though the website gives estimates, sometimes packages take longer to arrive. This can be stressful if you need it for a specific date. This is why I recommend ordering early.
A few people mentioned that the etching on the night sky necklace can be hard to see in dim light. Remember, this is a dark green stone with silver markings. It does not light up. It does not glow in the dark, unlike some of their paper prints. You need light to see the stars clearly.
There were also some comments about customer service. While many people said the service was great, a few said it was hard to get a response quickly. However, the brand does seem to respond to negative reviews on Trustpilot to address issues.

Returns and Refunds
What happens if you hate your night sky necklace? Or what if it arrives broken?
Because this is a custom item made just for you, you cannot simply return it because you changed your mind. You cannot swap it for a different date. Once they etch that stone, they cannot un-etch it.
However, their refund policy says they want you to be 100% satisfied.
- Damaged items: If your night sky necklace arrives broken or damaged, they will replace it or refund you. You will need to send them a photo of the damage.
- Quality issues: If you are simply not happy with the quality, they say they will issue a refund if you return it within 30 days. However, you have to pay the shipping cost to send it back.
- Mistakes: If you entered the wrong date or location when you ordered, they will not issue a refund. This counts as “customer error.” This is why it is so important to double-check everything before you click the buy button. Check your spelling. Check the year. Check the AM or PM on the time.
How to Care for Your Night Sky Necklace
If you decide to buy this night sky necklace, you will want to keep it looking new. Here are some simple tips based on advice from jewellery experts like Monica Rich Kosann:
- Wear it often: Believe it or not, wearing your silver helps keep it clean. The natural oils in your skin can help protect it.
- Keep it dry: Do not wear your night sky necklace in the shower. Do not wear it in the swimming pool. Chlorine is very bad for silver. Even the steam from a hot shower can speed up tarnish.
- Put it on last: Put your necklace on after you have applied your lotion, your perfume, and your hairspray. Chemicals in these products can stick to the silver and the stone.
- Store it properly: When you are not wearing it, put it in a jewellery box or a soft pouch. Store it in a cool, dry place. Do not leave it on the bathroom sink where it is damp.
- Clean it gently: If your night sky necklace gets dirty, wipe it with a soft cloth. If the silver looks dark, use a special silver polishing cloth. Do not use toothpaste or harsh chemicals, as these can scratch the Green Onyx stone.
Is It Worth It?
The Green Onyx night sky necklace is not a cheap piece of costume jewellery. It is an investment. You are paying for the materials (Sterling Silver and real Onyx). You are paying for the custom technology that maps the stars. And you are paying for the sentimental value.
If you are looking for a gift that will make someone stop and say, “Wow, you really thought about this,” then yes, the night sky necklace is worth it. It is a beautiful way to mark a special occasion.
However, if you are on a very tight budget or if you need a gift to arrive tomorrow, this might not be the right choice. It requires a bit of money and a bit of patience.
In summary:
- Pros: Real gemstones, quality silver, highly personal, unique design, good reviews.
- Cons: Custom items take time to ship, you must care for the silver to stop tarnish, no refunds for your own typos.
Frequently Asked Questions
Does the night sky necklace glow in the dark?
No. Some of The Night Sky’s paper prints have a glow-in-the-dark option, but the jewellery does not. The stars are etched (carved) into the stone. They reflect light, but they do not produce their own light.
Is the necklace waterproof?
Sterling silver and Green Onyx can handle a splash of water, but they are not fully waterproof. You should take the necklace off before swimming, showering, or doing the washing up. Water and chemicals can damage the metal and the stone over time.
How do I know the star map is accurate?
The company uses scientific data to generate the maps. They use the date, time, and location you provide to calculate the position of the stars and constellations. It is the same kind of data astronomers use.
Can I put a message on the back?
This specific review focused on the Green Onyx Silver Bezel night sky necklace. Some of their products allow for engraving on the back, but options can change. You should check the product page carefully when you are designing it to see if there is an option to add text.
What if I don’t know the exact time of the event?
That is okay. If you don’t know the exact time (like the exact minute a baby was born), the website will use a default time. The stars move slowly across the sky, so the map will still look accurate for that night.
Final Thoughts
The Green Onyx Silver Bezel necklace from The Night Sky is a lovely piece of jewellery. It combines the beauty of natural stone with the magic of the cosmos. It turns a memory into something you can hold.
For a 6th wedding anniversary (which is traditionally iron or sugar, but modern lists often suggest wood or turquoise, okay, maybe not specifically Onyx), or simply a birthday, it is a perfect choice.
Just remember to order your night sky necklace early. Double-check your dates. And once it arrives, tell the recipient the story behind the stars. That story is the real gift.
Do you have a night sky necklace or would you love one? Let me know in the comments below.






