18K Solid Gold Key Pendant Necklace, a timeless and elegant piece designed to symbolize unlocking possibilities and new beginnings. This necklace is crafted from 18K Solid Gold and is available in white, rose, and yellow gold, offering a luxurious and versatile addition to any jewelry collection.
 
Delicate Diamond Key Charm
The key-shaped charm measures 21.45mm x 6.30mm, with a thickness of 1.75mm, making it the perfect size for a dainty, elegant look. The charm is adorned with 0.06 carats total weight (ctw) of diamonds, providing just the right amount of sparkle. The diamonds are of IJ color and VS-SI clarity, ensuring a brilliant shine that complements the charm’s refined design.
 
Luxurious 18K Solid Gold Construction
This necklace is made from 18K Solid Gold, offering durability and a polished finish that will last for years. Available in white, rose, or yellow gold, you can choose the perfect color to match your personal style. The necklace is BIS Hallmarked, certifying the authenticity and purity of the gold.
Perfect for Everyday or Special Occasions
The Diamond Key Pendant Necklace is a versatile accessory, suitable for both everyday wear and special occasions. Whether you're looking for a thoughtful gift or a meaningful piece for yourself, this necklace is a beautiful symbol of opportunity and elegance.
 
Key Features :
 
Metal: 18K Solid Gold (Available in White, Rose, and Yellow Gold)
Charm Size: 21.45mm x 6.30mm
Charm Thickness: 1.75mm
Total Diamond Weight: 0.06 ctw
Diamond Color and Clarity: IJ Color, VS-SI Clarity
Certifications: GIA & BIS Hallmarked
Shipping Time: 10-12 Business Days
Customer Support: Available via live chats and video calls.

Frequently Asked Questions
What occasions is this necklace best suited for?
This necklace works for both everyday wear and special occasions — the solid gold setting and diamond stone dress up simple outfits while still being subtle enough for daily use.
What's the price range for this pendant diamond necklace across different gold karats?
At The Karat Store, this pendant diamond necklace starts at $1,245.66 in 10K gold, $1,405.36 in 14K gold, and $1,597 in 18K gold — all solid gold, not plated.
Should I choose 10K, 14K, or 18K gold for this necklace?
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 necklace solid gold all the way through, or just gold-plated?
This necklace is solid gold throughout, not gold-plated — the karat purity runs all the way through the metal, not just a surface layer. 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 for this necklace?
Chain length is a matter of preference and where you want the pendant to sit: 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.
What's the best way to keep this diamond necklace looking new?
Soak briefly in warm water with a drop of mild dish soap, gently brush with a soft-bristled brush, rinse, and pat dry. Avoid chlorine, harsh chemicals, and ultrasonic cleaners, and remove before swimming, showering, or exercising.
Material: Solid 10K, 14K & 18K gold set with diamonds
Available Metal Colours: Yellow Gold, White Gold, Rose Gold
Available Metal Karats: 10K, 14K, 18K
Available Chain Lengths: 14", 16", 18", 20", 22", 24"
Necklace Style: Pendant necklace