Custom Diamond Necklaces

Custom diamond necklaces are the epitome of luxury and personalization.
Each piece is meticulously crafted to reflect your unique style and sentiment.
Whether it is a special date, a name, or a heartfelt message, our custom diamond necklaces transform your ideas into stunning wearable art.
Celebrate love and individuality with a necklace that truly captures the essence of the wearer.

FILTER (21)

-16%

SALE

Personalized Initial Necklace with Birthstone Charm

Personalized Initial Necklace with Birthstone Charm

$130 $108

-23%

SALE

Multiple Diamond Name Necklace

$239 $184

-25%

SALE

Vertical Diamond Bar Necklace

$180 $135

-26%

SALE

Personalized Name Necklace With Diamond

$162 $119

-23%

SALE

Multiple Initial Necklace with Diamonds

$239 $184

-16%

SALE

Name Necklace with Diamond on the Chain

$185 $155

-23%

SALE

Mom Diamond Necklace

$321 $245

-23%

SALE

Diamond Guitar Pick Necklace

$335 $257

-24%

SALE

14K Gold Diamond Name Necklace

$804 $608

-30%

SALE

Mother Daughter Diamond Necklace Set

$369 $256

Engraved Tree of Life Necklace With Names and Diamonds

$251

-24%

SALE

14K Gold Diamond Initial Necklace

$804 $608

-18%

SALE

Mothers Diamond Necklace With Kids Pendants

$286 $233

-14%

SALE

Engraved Mother Necklace With Diamonds

$280 $239

-21%

SALE

Family Tree Diamond Necklace With Names

$321 $251

-25%

SALE

Birthstone Disc Necklace

$96 $72

Cubic Zirconia Silver Cross Necklace

$54

-14%

SALE

Custom Engraved Diamond Hoop Necklace for Moms

$152 $130

-12%

SALE

Personalized Heart Necklace with Two Names & Diamonds

$239 $209

-38%

SALE

Double Initial Necklace With Diamond

$263 $162

-24%

SALE

Personalized Initial Diamond Drop Necklace

Personalized Initial Diamond Drop Necklace

$173 $130

Join 100,000+ Happy Customers

Who wear their story with Onecklace

Fatma S.

Verified

Nov 2025

Beautiful pieces of jewellery

Quick delivery time (even though there was issues with the delivery company). Quick response from Seller and beautiful pieces of jewellery - my daughters loved it!

Sharon W.

Verified

Jun 2025

5* Company

I purchased the Personalized Name Necklace With Diamond recently as a birthday gift but I needed the chain to be different. The team at Onecklace could not have been more helpful with my request. Their service and quality of product is exceptional and I will definitely be ordering again - Thanks Again x

Jody L.

Verified

Sep 2024

Cute Necklace; Efficient Service

I love this necklace and the way I could customize details to create a special birthday gift. The company made and shipped the necklace within just a day or two, so I received it only 7-10 days after ordering.

Anna H.

Verified

Dec 2023

Gorgeous

Necklace is beautiful and a good quality. It arrived quickly as well.

Nicolas S.

Verified

May 2022