Diamond Tennis Necklace Extender (custom)
Fast shipping on all orders
30-day hassle-free returns
14k Solid Gold—Always
Free Shipping On All Orders
6-Month Warranty
Easy US Returns & Exchanges
14K SOLID GOLD — ALWAYS
Our jewelry is crafted in 14k solid gold — made to last a lifetime. We never use plating or vermeil. Responsibly made.
FREE SHIPPING ON ALL ORDERS
All US orders ship free. Orders $1500+ include expedited shipping. Global shipping also available.
6-MONTH WARRANTY
We offer a 6-month warranty for any manufacturing defect. Wear-and-tear, abuse, or third-party resizing is not covered.
EASY US RETURNS & EXCHANGES
Returns and exchanges accepted within 10 days. $10 return label fee applies. Items must be unworn and in original packaging.
[4.3mm 3inch 14k yellow gold with VVS lab grown diamond setting]
Extend your favorite tennis necklace with a seamless, elegant finish.
Crafted in solid 14K white & yellow gold and set with brilliant lab-grown diamonds, this extender is designed to match the sparkle and structure of your existing tennis necklace naturally. Perfect for adding extra comfort, layering versatility, and a refined luxury look.
────────────────────────
Why You'll Love It
• Seamlessly extends your tennis necklace with a luxury finish
• Designed to perfectly match classic tennis necklace settings
• Brilliant VVS/F diamonds for maximum sparkle
• Lightweight yet secure for comfortable daily wear
• Perfect for layering and customized necklace length styling
────────────────────────
Custom Orders & Sizing
For custom orders, sizing requests, or additional inquiries, please contact us via email or customer support. Our team will be happy to assist you with personalized recommendations and sizing guidance.
Email: senyjewelry@gmail.com
At Seny Jewelry, we value your time and ensure a smooth shopping experience. All orders are carefully processed and shipped within 7–10 days, guaranteeing secure delivery so you can enjoy your diamond jewelry without delay.
At Seny Jewelry, your satisfaction is our top priority. That’s why we offer a 30-day hassle-free return policy, giving you the flexibility to return or exchange your purchase with ease. Enjoy complete peace of mind, knowing your shopping experience is simple, secure, and worry-free.
At Seny Jewelry, customer satisfaction is our priority. Whether you need guidance choosing the perfect diamond, have questions about your order, or require after-sales support, our friendly team is always available. Contact us anytime for personalized assistance.
Choose options
Lab-Grown Diamonds
Seny Jewelry offers IGI-certified lab-grown diamonds, identical to mined ones in brilliance and quality. Each purchase includes a one-year warranty, ensuring authenticity, lasting value, and complimentary after-sales care.
Diamond Care Guide
Maintain your diamond’s sparkle by soaking in warm soapy water, gently brushing with a soft toothbrush, rinsing, and drying with a cloth—removing oils that naturally dull its shine.
