SKU: TKS-NCKDI-506036

Solid Gold Octagon Diamond Necklace

Name: Solid Gold Octagon Diamond Necklace
Brand: The Karat Store
SKU: TKS-NCKDI-506036
Price: 1550 USD
Availability: InStock

$1,550.00

Color

CHAIN LENGTH

Metal Karat

Quantity

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More: Lab Grown Diamond Necklaces · Lab Grown Diamond Jewelry · Solid gold vs gold plated

The 18K Solid Gold Octagon Diamond Necklace is a stunning piece that combines modern design with timeless elegance. Featuring a distinctive octagon shape adorned with 0.32 carats of lab-grown diamonds, this necklace provides a refined, geometric look. Each diamond is selected for its VS1 clarity and F color, delivering exceptional brilliance and ethical luxury. Crafted in 18K Solid Gold, this necklace is perfect for adding a touch of sophistication to both special occasions and everyday style. With meticulous craftsmanship, it is designed to ensure durability and lasting beauty.

Product Details :

Metal: 18K Solid Gold (Available in White ,Rose Gold and Yellow Gold)
Stones:
- Diamond Total Weight: 0.32 cts
- Type: Lab-Grown Diamond
- Clarity: VS1
- Color: F
Design: Distinctive octagon setting for a modern twist on classic diamond jewelry.
Certifications: IGI Certified & BIS Hallmarked
Shipping Time: 4 business days to make and dispatch, plus about 4 business days in transit (around 8 business days total)
Customer Support: Available via live chats, and video calls.

Frequently Asked Questions

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 much does this diamond necklace cost in solid gold?
Pricing on this diamond necklace runs from $1,209 (10K) to $1,364 (14K) to $1,550 (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.

Is this necklace durable enough for everyday wear?
Yes. Diamond rates 10 on the Mohs hardness scale, and set in solid gold, this necklace holds up well to daily wear.

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 lab-grown 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

Necklace Size Chart

LENGTH (INCHES)	LENGTH (CM)
16	41
18	46
20	51
22	56
24	61
26	66
28	71
30	76

How to Measure

Use a String or Tape Measure- Place a string or flexible tape measure around your neck, following the natural curve.
Choose Your Desired Length- Decide where you want your necklace to fall: at the collarbone, below the collarbone, or further down the chest.
Record the Measurement- Measure the length and choose the closest size from the guide below.

Necklace Length Suggestions

Choker (14-16 inches): Sits closely around the neck.
Princess (16-18 inches): Falls just below the collarbone.
Matinee (20-22 inches): Rests at or slightly below the bust.
Opera (24 inches): Hangs at or below the center of the chest.

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.
Last On, First Off: Put on your jewellery after applying makeup, perfume, or hairspray, and remove it first before bedtime or engaging in activities like swimming or exercising.

Cleaning: Clean your jewellery with mild detergent and warm water. Gently scrub with a soft toothbrush to remove dirt from intricate details.

Separate Storage: Store each piece of jewellery separately to avoid scratches and tangling. Consider using soft pouches or a jewellery box with compartments.

Professional Cleaning: For a deep clean, consider professional cleaning services. Please consult with our experts at The Karat Store for recommendations.