Black Agate Crystal Necklace by Xander Kostroma – Style, Meaning & Review
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When it comes to statement jewellery, finding a piece that combines style with intention and integrity can feel like searching for a needle in a haystack. However, the Black Agate Crystal Long Length Statement Necklace by Xander Kostroma ticks all the boxes and then some. Ethically handmade and spiritually inspired, this necklace brings a bold energy to your look, alongside calming vibes to your day.
Black Agate Crystal Necklace – A Statement Piece with Meaning

This Black Agate Crystal Necklace makes a lasting first impression thanks to its striking design. Hanging on a gold tone chain of approximately 68cm in length, it features a large black agate pendant (around 5×3 cm) which matches the chain thanks to it being edged in a soft gold tone. Due to the fact that each stone is different, thanks to their natural shape and markings, no two necklaces will ever quite be the same, making each one a unique piece.
If you would like to know more about the stone, black agate is particularly known for its grounding and protective properties. It is also said to absorb negative energy as well as promote inner strength. So if you believe in the power of crystals, this could be the perfect necklace to wear when you need a little emotional boost or simply want to feel more balanced.
Handmade and Ethically Produced

Xander Kostroma is a brand that truly cares about how its pieces are made. The necklace is hand-finished, nickel-free, and created in small batches with an emphasis on sustainability and ethically sourced crystals. Each of these pendants is smoothed and polished before being edged with gold detail and being sealed, so what you’re wearing is a little work of art, not just another mass-produced accessory.
It’s that attention to detail and ethical ethos that really sets Xander Kostroma apart in the world of crystal jewellery.
An Accessory Which Is Versatile and Easy to Style
Whether you’re dressing up a simple blouse or layering it over knitwear, this long necklace is incredibly versatile. The edging of gold gives it that luxe look, while the polished crystal allows it to be styled for evening or everyday wear.
Personally, I love pairing it with a plain t-shirt and a pair of jeans and allowing the necklace to shine, after all, sometimes it really can be all about the accessories. However, it also layers beautifully with other gold jewellery for a more boho-inspired look.
The Perfect Crystal Jewellery for Gifting (or Treating Yourself)

Arriving in beautiful branded packaging, this necklace makes a gorgeous gift for any crystal or jewellery lover. At £28, it also feels like a bit of a bargain for something that is both handmade and unique. So no matter if you’re shopping for a friend, a loved one, or just fancy a little treat for yourself, this necklace feels special the moment you open the box.
Final Thoughts on this Xander Kostroma Necklace
If you’re looking for a piece of jewellery that combines crystal healing, conscious craftsmanship, and stand-out style, the Black Agate Crystal Necklace by Xander Kostroma is well worth a spot in your collection.
It’s beautiful, meaningful, and made with care; what more could you ask for?
Shop: Black Agate Jewellery.
Competiton
I thought it would be nice to give one of you the chance to have an Xander Kostoma piece for yourself, and I thought it would be nice to give away one of the Ginkgo Leaf bracelets. These come in Amethyst, Black Chalcedony, Clear Quartz, Howlite and Rose Quartz. The winner will be able to pick their favourite depending on stock when the competition closes.
To be in with a chance of winning, all you need to do is follow the options on the Gleam widget below.
Win a Ginkgo Leaf Bracelet from Xander Kostoma.After entering via the mandatory entry option in this competition, all other entries are optional; however, entering via more gives you more entries into the final draw.
Good Luck!
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The Emi Rosé Scarf because I would like it for my Mrs.
I love the crystal suncatchers, they’re so pretty. I think my favourite is the sun and moon crystal airplant suncatcher as it’s something different.
I would love to own the Luxury Golden Peach Rib Knit Scarf
My favourite piece is the Blue Zig-Zag Blanket Pashmina Scarf which is gorgeous.
The Mens Tigers Eye Arrow Head Crystal Pendant Necklace is something I’d wear myself.
I love the Gold Tone Crescent Moon Lapis Lazuli Crystal Window Suncatcher as it is so unusual and pretty.
I like the 7 Chakra’s Raw Crystal Window Hanging – Gold Tone which would go well in our bedroom.
I love all the sun catchers- I adore anything that harnesses natural light!
I really like the Green Chalcedony Long Length Crystal Necklace with Gold Tone Ginkgo Leaf for the colours
I’m in love with the Tiger’s Eye jewelry .
The Black Chalcedony Long Length Crystal Necklace with Ginkgo Leaf is gorgeous! I used to have a necklace similar to that and I miss it.
I love the chunky 14ct gold plate and Lapis Lazuli necklace as i have a ring that would match this and would love to wear both
The skull tote bags because they are something my mum would love.
Rose Quartz Bracelet with Gold Tone Ginkgo Leaf, because I like the colour
the Tiger Eye jewellery is absolutely beautiful, lovely colours.
The Howlite Crystal Bracelet with Gold Tone Ginkgo Leaf is beautiful and would be perfect for my holiday jewellery.
I love the Gold Tone Crescent Moon Aquamarine Crystal Window Suncatcher because it’s so pretty, and it would look gorgeous in my window catching the light
I love the Tiger Eye jewellery, it is so striking and unusual
I love the Jade Crystal Gua Sha with Black Skull Pouch because I think it would be useful and I love the colour green
I love the Quartz Crystal Window Suncatcher as I’m stuck inside a lot so like anything that cheers up my view!
the African Turquoise Jewellery the contrast between the black and green is really nice
I love the Tiger Eye jewellery. My grand-daughter loves the black agate.
I love the Raw Quartz Crystal Square Pendant in Gold because of the properties that it has, and it’s a stunning piece! I love the way the it’s attached to the chain as well.
Black agate crystal necklace is beauty, it is chunky but not over big and makes me think of nature
I love the Linen Summer Pashmina Scarves – perfect for cooler evenings
I like the Amethyst Pendant Necklace, love purple and it’s my birthstone.
Agate Fuchsia Pink XL Length Necklace because the colour is so pretty
I really love the 925 Sterling Silver Layered Moonstone Necklace. Moonstone is a fave.
I love the 7 Chakra Raw Stone Crystal necklace because it’s so delicate and pretty. I love the colours.
i really like the look of the Mens Gold Tone African Turquoise Crystal Bracelet, the colours and design looks amazing.
I love the Mens Gold Tone African Turquoise Crystal Bracelet, as I love the colours.
The turquoise agate necklace is a lovely colour.
Loving the look of the Raw Quartz Crystal Window Suncatcher.. would look great hanging in my window
I love all of the crystal hair clips, they are lovely.
I love all the Lapis Lazuli jewellery. It’s a stunning colour
They’re very beautiful pieces.
i really like the Silver Metallic Bee Print Scarf in Navy Blue
Gold Tone 7 Chakra Raw Stone Crystal Bracelet
I really like the Gold Tone Crescent Moon Aquamarine Crystal Window Suncatcher because the aquamarine is my birthstone
I absolutely love the Viscose Metallic Tassel Kimono Beach Coverup in Silver. it would be perfect for my hols for when I want to get off my sun bed and pop for a drink/some lunch!
I love the Howlite heart hoop earrings but everything is so pretty!
My favourite is the Green Aventurine Love Heart & Gold Crystal Anklet – it’s subtle yet beautiful!
I’ve actually brought from here before, the stuff is all great quality. I’m wearing the 925 Sterling Silver Black Obsidian Pendant Necklace right now 🙂 I would pick the Gold Tone Long Length Maxi Raw Burgundy Agate Pendant Necklace, it’s so cute!
I really love the 925 Sterling Silver Layered Moonstone Necklace. It looks beautiful, and the moonstone makes me think of the Disney Zombies movies that my kids love.
i just love the amyethyst suncatcher. il ove having loots of suncatchers!
Long Length 925 Sterling Silver Raw Turquoise Blue Agate Necklace. It’s such a pretty necklace and I don’t like necklaces that hang too close to my neck.
I love the anklets. My little boy is called Xander too so I will remember this.
Silver Rain Drop Stud Earrings with Yellow Jade
Simple earings and natural earth tones and sightly unusual
I like the crystal stud earrings which look perfect for any occasion
I really like the Raw Amethyst Crystal Window Suncatcher, amethysts are my favourite stone, and I definitely need its tranquilising effects!
Gold Tone Long Length Maxi Raw Pink Agate Pendant Necklace
crystal bottle stoppers are pretty and handy!
The Gold Tone Black Agate Crystal Wine Bottle Stopper looks so cool and would be super useful!
925 Sterling silver 7 Chakra bracelet is my favorite item, looks amazing and as I regularly cleanse my Chakras this would make me feel connected on a deeper perspective.
I like amethyst suncatcher – it’s my birthstone and will bring calmness to my room
I would go for the suncatchers, they look so pretty hanging in the window
I always like Tiger Eye so I’d choose a Tiger Eye bead necklace
I love all the Lapis Lazuli jewellery. It’s a stunning shade of blue.
I love earrings and don’t really wear other jewellery. Blue is also my favourite colour so I’d choose the Gold Tone Lapis Lazuli Chunky Hoop Drop Earrings
The Black Agate Crystal Necklace is my favourite it looks lovely
I love the Gold Tone Long Length Maxi Raw Pink Agate Pendant Necklace, It is just so pretty, and on offer too!
Love the Cream PU Skinny Belt with Heart Holes, very pretty.
Gold Tone Crescent Moon Aquamarine Crystal Window Suncatcher
I love the colours and would go great in my living room
I love the Raw Amethyst Crystal Window Suncatcher. This would be beautiful to watch the sun hitting it. Amethyst is my favourite stone.
They have a gorgeous selection of scarves. The Paisley Tassel Pashmina Scarf in Deep Periwinkle is my favourite although I would love any of them because I’m a scarf addict!
Gold Tone Crescent Moon Aquamarine Crystal Window Suncatcher as I love to watch the sunlight play over crystals. It is so calming.
Love turquoise so would choose the Raw Sky Blue Agate & Aquamarine Mini Crystal Window Suncatcher x
XL Black Raw Agate & Falcon’s Eye Crystal Suncatcher ,’ so many beautiful collections to choose from – spoilt for choice
I like the Ginkgo Leaf Bracelet 🙂
Love the horror colouring book! Such a unique idea perfect for a gift or a fun cosy Halloween idea
I love the colour of Howlite Semi Precious Stone and 925 Sterling Silver Necklace
My favourite is the Red Garnet Queen of the Damned Necklace because it’s so gothy!
I love earrings and can never resist a new pair, the Mini Sterling Silver Hoop and Orange Aventurine Cross Earrings are perfect to add to my collection
14ct Gold Plate & Amethyst Necklace would be my choice of piece. Beautifully simple, just my style.
I really like the Gold Tone Lapis Lazuli Moon and Stars Charm Necklace because it is very pretty and Lapis Lazuli is one of my favourite gems x
The crystal bottle stoppers are both pretty and useful.
the adult horror colouring book is a novel idea I’d like to try.
I like the XXL Raw Crystal Handmade 7 Chakra Wall Hanging as I could do with some re-balancing
My wife loves the Yellow Jade Crystal Waterfall Necklace in Gold because it is so striking and stylish!
Love the Mens 925 Sterling Silver Picasso Jasper and Black Onyx Layer Bracelet its ever so stylish!
I really like the Mens Extra Long Length Tigers Eye and Black Onyx Necklace. This would look fab whilst walking the beach in the Seychelles later this year.