This 18K Solid Gold Octagon Illusion Diamond Pendant is a stunning fusion of geometric elegance and dazzling brilliance. Designed with an octagon-shaped illusion setting, this pendant creates the effect of a larger diamond, making it an eye-catching statement piece. The precisely arranged baguette and round-cut diamonds enhance its sparkle, offering a contemporary yet timeless design. Perfect for special occasions or everyday wear, this pendant adds luxury and sophistication to any jewelry collection.
 
Product Details:
 
Metal: 18K Solid Gold (Available in White ,Rose Gold and Yellow Gold)
Design: Octagon illusion setting that enhances the diamond’s brilliance.
Certifications: GIA & BIS Hallmarked.
Shipping Time: 10-12 Business Days.
Packaging: Presented in a Karat Store Jewelry box, ideal for gifting or adding a unique piece to your collection.
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions
Is diamond durable enough for everyday wear?
Yes. Diamond rates 10 on the Mohs hardness scale, making this piece durable enough for daily wear.
How much does this diamond necklace cost in solid gold?
At The Karat Store, this diamond necklace starts at $1,505.4 in 10K gold, $1,698.4 in 14K gold, and $1,930 in 18K gold — all solid gold, not plated.
Should I choose 10K, 14K, or 18K gold for this piece?
18K gold (75% pure) has the richest color and softest feel. 14K gold (58.3% pure) is the most popular balance of durability and value. 10K gold (41.7% pure) is the most affordable and most scratch-resistant.
Is this solid gold all the way through, or just gold-plated?
This piece is solid gold throughout, not gold-plated — the karat purity runs all the way through the metal. Unlike plated jewelry, it won't flake, discolor, or expose base metal over time, and it carries a karat hallmark stamp as proof of authenticity.
What chain length should I choose?
16" sits at the collarbone, 18" is the most versatile everyday length, and 20"+ sits lower for a more dramatic look. Check the size options on this page for what's available.
How do I clean and care for this piece at home?
Clean gently with warm water, a mild soap, and a soft brush, then dry thoroughly. Avoid chlorine, harsh chemicals, and ultrasonic cleaners, and store it separately from other jewelry to prevent scratching.