18K Solid Gold Prong Setting Diamond Solitaire Necklace
Introducing our stunning 18K Solid Gold Prong Setting Diamond Solitaire Necklace, a timeless and elegant piece that exudes luxury and sophistication.
 
Crafted from 18K Solid Gold, this exquisite necklace comes in your choice of rose gold, yellow gold, or white gold, allowing you to customize it to your personal style. The necklace features a single round-cut diamond, with options for stone sizes of 2.3MM (0.05ctw), 2.7MM (0.07ctw), or 3.2MM (0.12ctw), providing you with the perfect amount of sparkle.
 
The diamond color-clarity is G Color VS-SI Clarity, guaranteeing a brilliant and high-quality stone. Whether as a treat for yourself or a thoughtful gift for a loved one, this diamond solitaire necklace is a must-have addition to any fine jewelry collection.
 
Product Details :
 
Metal: 18K Solid Gold (Available in White ,Rose Gold and Yellow Gold)
Diamond-Cut: Round
Number of Stones: 1
Stone Size an Total Ctw: 2.3MM (0,05ctw), 2.7MM (0.07ctw), 3.2MM (0.12ctw)
Diamond Color-Clarity: G Color VS-SI Clarity  
Certifications: BIS Hallmarked & GIA
Shipping Time: 15-25 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.
How much does this solitaire diamond necklace cost in solid gold?
Pricing on this solitaire diamond necklace runs from $1,078.74 (10K) to $1,217.04 (14K) to $1,383 (18K) at The Karat Store, with every option solid gold throughout.
Should I choose 10K, 14K, or 18K gold for this necklace?
18K gold gives the deepest color, 14K gold is the everyday favorite for its balance of strength and value, and 10K gold is the toughest and most budget-friendly.
How can I tell this is real solid gold and not 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.
How do I clean and care for this necklace at home?
Clean every few weeks with warm water, a mild soap, and a soft brush, then dry thoroughly. Take it off before applying perfume or lotion, and store it flat in its own pouch to prevent tangling and scratches.
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