18k Solid Gold Octagon Moissanite Diamond Necklace - Image 1
18k Solid Gold Octagon Moissanite Diamond Necklace - Image 2
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18k Solid Gold Octagon Moissanite Diamond Necklace
18k Solid Gold Octagon Moissanite Diamond Necklace - Image 2

18k Solid Gold Octagon Moissanite Diamond Necklace

£1,533.00

A refined 18K solid gold necklace featuring an octagon pendant set with 0.32 CTW Premium Moissanite — modern, minimal, and made to shine.

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Necklace Size Guide

Length (inches) Length (cm)
16 41
18 46
22 51
22 56
24 61
26 66
28 71
30 76
Size guide
SKU: 18MMM249

Sleek and contemporary, this octagon pendant necklace is crafted in premium 18K solid gold for a timeless finish with a modern edge. Its clean geometric silhouette makes it just as striking worn solo as it is layered with your favourite chains.

Set with 0.32 CTW Premium Moissanite, this piece delivers crisp brilliance and fire in DE colour and VVS clarity, beautifully framed within the octagon design for maximum impact. Premium Moissanite is supplied with GRA certification for added reassurance.

Available in White Gold, Rose Gold, or Yellow Gold, it’s an effortless everyday luxury — polished, versatile, and unmistakably elegant.

Key Highlights

  • Modern Octagon Pendant: A clean geometric shape for a refined, contemporary look.

  • Premium Moissanite Sparkle: 0.32 CTW of brilliant Premium Moissanite for eye-catching fire.

  • High-Grade Stone Quality: DE colour and VVS clarity for a crisp, diamond-like finish.

  • Certified Confidence: Premium Moissanite supplied with GRA certification.

  • Perfect for Layering: Minimal design that elevates everyday styling or special occasions.

Product Details Summary

  • Metal: 18K Solid Gold

  • Metal colour options: White Gold, Rose Gold, Yellow Gold

  • Necklace style: Pendant necklace

  • Pendant shape: Octagon

  • Stone type: Premium Moissanite

  • Total carat weight: 0.32 CTW

  • Premium Moissanite colour: DE

  • Premium Moissanite clarity: VVS

  • Premium Moissanite certification: GRA

  • Colour upgrade: Available ($200 per colour grade upgrade)

  • Shipping time: 15–25 business days

  • 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 & UPS 

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: Certified by the International Gemological Institute (IGI) for authenticity and quality.

Gemstone Jewelry: 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: Certified by the Gemological Research Association (GRA) 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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