14K Gold 12.11ctw 2.50mm Round Lab Diamond 20 Inches 3 Prong Tennis Necklace

$4,022.00

12.11 CTW round lab grown diamond tennis necklace
Crafted in 14K solid gold (white, yellow, and rose options)
VS1 clarity, EF color certified diamonds (IGI)
2.50mm bold profile with 3-prong setting
20-inch length for a longer, fluid drop
Gold weight: 15.76 grams
Flexible build with box clasp + safety lock
Ready to ship within 24 hours
Delivered across the USA within 72 hours

Metal Color

Rose Gold

White Gold

Yellow Gold

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SKU: SHIV00022

At 20 inches and 12.11 carats, this lab grown diamond tennis necklace sits lower on the chest, creating a more relaxed, elongated line that immediately stands out. The 2.50mm diamonds give the necklace a fuller, more defined presence, forming a continuous line that feels substantial without becoming bulky. The 3-prong setting keeps each stone open to light, allowing reflections to shift naturally instead of appearing flat. This is where a lab grown diamond tennis necklace becomes both fluid and clearly noticeable.

Skip the wait. Certified lab diamond tennis necklace shipping in 24 hr

Already completed. No production timeline attached.
Most pieces are made after purchase. This one is ready now, offering true ready to ship jewelry with 24 hour shipping jewelry speed.

Core Specifications

Total Carat Weight: 12.11 CTW
Diamond Quality: VS1 clarity EF color
Stone Type: Lab Grown Diamonds
Certification: IGI for lab grown
Setting Style: 3 Prong Tennis Setting
Length: 20 Inches
Metal: 14k solid gold (white yellow and rose gold options)
Gold Weight: 15.76 grams
Gold Purity Stamp: Stamped

Shipping Without Delay

No custom wait time shipping from US
Ready to ship within 24 hr
Delivery within 72 hr USA
Worldwide delivery in 4 to 5 days
Ships within 24 hrs
Insured delivery
Ships fast without made-to-order wait

How It Wears

At 20 inches, this sits lower than standard lengths, creating a longer, more fluid drop that moves naturally with you. The 2.50mm diamonds give the necklace a stronger, more visible line, making it stand out without relying on bulk.
The 3-prong setting allows light to pass through each diamond, creating subtle variations in reflection. Instead of a uniform shine, the necklace produces a more dynamic, shifting sparkle that feels elevated in motion.

When You Will Reach For It

When you want something noticeable without overthinking it.
A last minute gift that still feels substantial and intentional.
A birthday anniversary where timing matters without compromise.
An event this weekend where a longer silhouette completes the look instantly.
It wears as a standalone piece for a clean, elongated look or layers easily with shorter necklaces for contrast. From day to evening, it transitions without effort.

Construction Details

Flexible construction allows natural movement along the neckline.
Secured with a box clasp and safety lock for dependable wear.
Natural diamond light variation ensures a more refined, non-uniform shine.

Customer Support:

Customer Support Available via live chats and video calls

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 GIA(For Natural Diamonds)
Certified by IGI(For Lab Diamonds)

Please note that these certificates are available upon request and come 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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