Rough Black Diamond Necklace with Aztec Coin Pendant
This handmade necklace features an extraordinary, raw, black diamond in an irregular, natural shape. The stone is paired with an irregular silver nugget and a striking pendant – a Large Aztec Coin . All elements are crafted from sterling silver , plated with a thick layer of pure 24k gold , ensuring exceptional durability and a beautiful hue.
I personally select each diamond, preserving its raw yet noble character. Quality craftsmanship is my priority, and hand-finishing with meticulous attention to detail makes each piece a unique work of jewelry art.
Precious Stones
24k gold
Silver 925
Handmade in Poland
Safe returns
Gilding and Finishing
I create my designs from 925 sterling silver , which I plate with 24-karat gold in cooperation with a renowned Warsaw studio.
I use 1-2 micron thick gold plating— a much thicker layer of gold than most brands offer. This makes the coating more durable , less prone to abrasion, and maintains its beautiful shine for years —without darkening or dulling.
I additionally protect each element with an anti-tarnish layer, which protects against dulling and allows you to enjoy the noble finish for longer.
I craft each necklace with meticulous attention to detail — I hand-select all the stones, choosing them so that they not only look beautiful together but also sit harmoniously on the neck. This ensures each design is refined, elegant, and unique.
Dimensions
Stone Properties
Shipping and Returns
Every order is carefully secured, insured and shipped via proven, secure delivery methods:
- Poland: InPost Kurier, InPost Paczkomat, DHL Kurier
- Europe: DHL International
- Other countries (including the USA, Canada, Australia): DHL Express – fast and fully monitored delivery worldwide
The delivery time listed for a product (e.g., 2-4 days or 8-12 days) is the estimated delivery time from the time the order is placed . This includes both product preparation time and shipping.
For orders shipped outside the European Union, this time may be extended by 1-2 days due to customs procedures.
Returns are accepted within 14 days of receiving your order. For our full returns policy, click here .
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My Workshop
Personal Jewelry Guidance
I have been involved in styling and image consulting for years, and today I transfer this knowledge to creating jewelry—for women who value quality and style.
If you need help choosing jewelry, give me a call, I'll be happy to advise you personally. Ula Sienicka +48 609 134 644
Customer Reviews
Frequently Asked Questions
The workmanship and quality of the jewelry
Yes. The jewelry is handcrafted with attention to every detail. All stones are carefully selected for quality, color, and shape, and each design is created with durability, aesthetics, and comfort in mind.
Yes. I personally select only the highest quality gemstones —carefully selected for color, purity, structure, and clarity .
The quality of stones is demonstrated by their color, natural brilliance, uniformity, and structural durability . Transparency and the way they react to light are also crucial for gemstones. Under light's influence, the stones become brighter , and the color becomes more pure and expressive . In lower light, they take on deeper, darker shades while retaining their natural luster .
Thanks to this, the jewelry subtly changes its character throughout the day , revealing different shades depending on the light .
Each necklace is made of stones selected with great attention to aesthetics and harmony of the whole , so that the jewelry will delight not only today, but also for many years to come .
The jewelry is made of 925 sterling silver, coated with a thick layer of gold, 1-2 microns thick. This is significantly thicker than many brands that use very thin coatings. This makes the gold plating more durable, resistant to everyday wear, and retains its color for a long time.
Additionally, the anti-tarnish layer protects the jewelry from dulling and darkening by slowing down the natural oxidation processes of silver.
Yes. I place great importance on ensuring that the necklace you order is as close as possible to the one you see in the photos. Each design is created using the same pattern and with the same attention to detail.
It's worth remembering, however, that pearls and natural stones are natural creations, so they may vary slightly in shape or shade. These subtle differences do not affect the character or aesthetic of the jewelry and never deviate significantly from the presented design.
The jewelry is made of flexible, 16-strand steel cord . It is very durable and yet drapes beautifully, ensuring the jewelry maintains an elegant and natural appearance on the neck.
Care and use
Bathing with jewelry on is not recommended—not in the shower, pool, or ocean. Chlorine, salt water, and frequent contact with moisture can cause gold plating to dull.
Jewelry can be gently washed occasionally in lukewarm water with a little soap. This will remove natural deposits from the leather and restore its fresh shine. After washing, dry it thoroughly.
Service and authenticity
Yes. It is possible to repair or refurbish Ula Sienicka jewelry. However, we do not provide repair or refurbishment services for jewelry from other manufacturers.
Yes. Each piece of jewelry comes with a certificate of authenticity.
Shopping and consulting
No. Jewelry is available online only.
However, if you have any questions about your purchase, you can return the item within 14 days of receiving it . This allows you to order your jewelry with confidence, see it in person, and decide whether it meets your expectations.
Yes. I've been a stylist and image consultant for years, and today I'm applying this knowledge to jewelry creation—for women who value quality and style.
If you need help choosing jewelry, please contact me by phone - I'll be happy to advise you.
Ula Sienicka +48 609 134 644
Shipment
Yes, we offer international shipping.
For countries within the European Union, the shipping cost is 100 PLN, which is approximately 20 €
For countries outside the European Union, such as the USA, UK, Canada, Australia, Switzerland and Norway, orders are shipped with DHL Express — a fast, secure and fully tracked delivery service.
After you enter your delivery address, the system will automatically calculate the shipping cost. For countries outside the EU, the amount shown also includes all applicable duties and taxes — all duties & taxes included. This means that the price shown at checkout is final, and you will not have to pay any additional fees when receiving your parcel.
Each shipment is fully insured.
Yes. Every shipment is insured.