18k Solid Gold Moissanite Diamond Rectangle Octagon Ball Necklace
£1,800.00
A sleek geometric necklace in 18K solid gold, combining rectangle, octagon and ball details with brilliant Premium Moissanite sparkle.
Necklace Size Guide
| Length (inches) | Length (cm) |
| 16 | 41 |
| 18 | 46 |
| 22 | 51 |
| 22 | 56 |
| 24 | 61 |
| 26 | 66 |
| 28 | 71 |
| 30 | 76 |
Designed for lovers of clean lines and contemporary shine, this 18K solid gold necklace pairs structured geometry with a refined, wearable finish. The distinctive mix of rectangular, octagonal and ball-shaped elements creates a modern silhouette that elevates both daywear and evening looks.
Set with Premium Moissanite in a bright, ice-white appearance (DE colour, VVS clarity), it delivers impressive fire and brilliance while keeping the look luxuriously polished.
Choose from White Gold, Rose Gold or Yellow Gold, and enjoy peace of mind with GRA certification. It arrives beautifully presented in a Karat Store Jewellery box—ideal for gifting or a personal treat.
Key Highlights
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Geometric Statement Design: Rectangle, octagon and ball elements for a structured, modern look.
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Premium Moissanite Brilliance: DE colour and VVS clarity for crisp, high-impact sparkle.
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18K Solid Gold Finish: Available in White, Rose or Yellow Gold to suit your style.
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Certified Authenticity: Supplied with GRA certification for confidence and quality assurance.
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Gift-Ready Presentation: Arrives in a luxury Karat Store Jewellery box.
Product Details Summary
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Metal: 18K Solid Gold
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Gold Colour Options: White Gold, Rose Gold, Yellow Gold
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Stone Type: Premium Moissanite
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Stone Colour: DE
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Stone Clarity: VVS
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Design: Rectangle, octagon and ball elements
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Certification: GRA
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Colour Upgrade: Available ($200 per colour grade increase)
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Packaging: Luxury Karat Store Jewellery box
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Shipping Time: 15–25 business days
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Customer Support: Live chat & video call assistance
We offer free shipping across the USA on all orders—no minimum required.
Processing & Handling: 5–10 business days
Shipping Time: 10–15 business days
Total Delivery Time: 15–25 business days from the date of order
Carriers: USPS & UPSÂ
Please inspect your package upon delivery for any damage or tampering before signing.
For assistance, contact us at contact@thekaratstore.uk.
Thank you for shopping with The Karat Store US!
We take pride in offering high-quality jewelry and providing the necessary certifications to ensure your peace of mind. Below is a breakdown of the certification process for each product type:
Lab-Grown Solitaire Jewelry:Â Certified by the International Gemological Institute (IGI)Â for authenticity and quality.
Gemstone Jewelry:Â Accompanied by a detailed Gemologist Report.
- Certified by YGA (Your Gemologist Associatio.
- Optional Certification: For IGI or GIA certification, available upon request. Please note that this comes with a 30-40 day waiting period and an additional charge.
Moissanite Jewelry:Â Certified by the Gemological Research Association (GRA)Â with a comprehensive report.
For more details, Check out our certification information page.
To keep your jewelry from The Karat Store looking its best, follow these simple care tips:
- Clean Regularly: Use a mild soap and water solution, gently scrub with a soft brush, rinse, and dry with a soft cloth.
- Store Safely: Keep your jewelry in a dry place, in a jewelry box or soft pouch, and separate pieces to avoid scratches.
- Avoid Chemicals: Remove jewelry before swimming or using cleaning products to prevent exposure to harsh chemicals.
- Handle with Care: Avoid wearing jewelry during activities that may cause damage, such as exercising or heavy lifting.
- Inspect Periodically: Check for loose stones or worn settings. Contact us for repairs if needed.
By following these tips, you can ensure your 14k gold jewelry remains beautiful for years to come. For any questions, contact us at thekaratstore@gmail.com.
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