4 mm Black Diamond Necklace with Cross Pendant

Complete your look with this unisex black diamond beaded necklace from ZeeDiamonds. Approximately 4 mm round brilliant-cut beads create a rich jet-black appearance with light-catching reflections, complemented by a 925 sterling silver cross pendant.

Choose from necklace lengths of 18–24 inches and White Gold, Yellow Gold, Rose Gold, or Black Gold finish options. The 18-inch necklace has an approximate diamond weight of 80 carats.

Wear this cross pendant necklace on its own or pair it with your favorite jewelry for a layered look. Its unisex design also makes it a thoughtful gift for a birthday, anniversary, or Christmas.

Product Details

Diamonds Color - Jet Black
Shape - Round Brilliant Cut
Approx. Size of Beads - 4 mm
Approx. Weight of Diamonds - 80 Carats for 18 inches
Origin of Diamonds - Central Africa (Conflict Free)
Species - Carbonado - Earth Mined
Quality - AAA
Cross Pendant - 925 Sterling Silver
Metal - Stamped Solid in 925 Silver
Length of Necklace - 18 - 24 Inches (options below)
Finish - White Gold, Yellow Gold, Rose Gold, Black Gold (options below)

Free Diamond Studs as Special offer

Diamond Treatment Disclosure

The diamonds are described as earth-mined and treated using high pressure and high temperature (HPHT) to enhance their black color. They are not being offered as untreated natural-color black diamonds.

The faceted surfaces reflect light, giving the beads their distinctive luster.

Certificate of Authenticity

A Certificate of Authenticity is included with your necklace. Please contact us for laboratory and certificate verification details.

Metal & Finish Information

The cross pendant is described as 925 sterling silver, and the metal is described as stamped solid 925 silver.

Available finishes include White Gold, Yellow Gold, Rose Gold, and Black Gold. The selected finish does not mean the pendant or other metal components are solid gold.

The silver is described as having nickel-free rhodium plating. Additional 18K gold plating is available at an extra charge; please contact us for availability and pricing before ordering.

If you have a known metal sensitivity, please request details about the selected finish before purchasing.

Processing & Shipping

Please allow 3–7 business days for order processing, including finishing, packing, certification, and documentation.

Estimated shipping transit time is 5–9 business days after dispatch. Processing time is additional to transit time.

Shipping is arranged through USPS, Speed Post, UPS, or a comparable carrier, depending on the destination and service used. Tracking information is provided after dispatch.

Shipping charges:

United States: $15 USD
Other supported international destinations: $25 USD

Delivery estimates may be affected by customs clearance and carrier delays.

Combined Shipping

Up to five items can be combined in one order. Purchases exceeding five items are handled as a separate order.

Payment

We accept major credit cards and bank transfers through Wise, subject to the payment methods available for your order.

For purchases arranged outside immediate checkout, payment is requested within three days. Items remain available to other buyers until payment is received.

Customs & Import Charges

USA – All items are delivered free of customs duty, tariffs, or other charges.

Rest of the World – Import duties, customs charges, and applicable local taxes are the buyer’s responsibility unless collected at checkout or otherwise stated for the order. These charges vary by destination and are separate from the listed shipping fee.

Returns & Refunds

Items may be returned within 30 days of delivery.

Returned items must be unused, undamaged, and in their original packaging. Please contact us for return instructions and use a shipping service with tracking.

Shipping charges are non-refundable.

Under our stated refund process, refunds are issued through PayPal within 5–7 days after the returned product is received and inspected.

Manufacturing Defects

We offer a money-back guarantee for manufacturing defects, subject to our return and refund policy. Please contact us with your order details and photographs so we can review the issue.

Frequently Asked Questions

What size are the black diamond beads?
The round brilliant-cut black diamond beads measure approximately 4 mm.

What necklace lengths are available?
Lengths range from 18 to 24 inches. Select your preferred length from the available product options.

What is the diamond weight?
The approximate diamond weight is 80 carats for the 18-inch necklace. Please contact us for the diamond weight of other available lengths.

Is this necklace suitable for men and women?
Yes. This necklace is offered as a unisex design. Choose your preferred length and finish to suit your style.

What is the cross pendant made of?
The cross pendant is described as 925 sterling silver.

What finishes are available?
Finish options include White Gold, Yellow Gold, Rose Gold, and Black Gold. These finish names do not indicate solid gold construction.

Are the black diamonds treated?
Yes. These diamonds are described as HPHT-treated to enhance their black color. Please review the treatment disclosure before purchasing.

Are free diamond studs included?
Free diamond studs are included as the stated special offer. Please contact us for details about the complimentary studs.

Is a certificate included?
Yes. A Certificate of Authenticity is provided with your necklace. Contact us for laboratory and verification details.

How can I request further authenticity information?
Contact ZeeDiamonds for certificate details and information about the diamonds. For an independent assessment, consult a qualified gemological laboratory.

How should I care for the necklace?
Gently wipe with a soft cloth. For occasional cleaning, use mild soap and lukewarm water, rinse carefully, and dry thoroughly. Avoid harsh chemicals and abrasive cleaners, and store separately to protect the finish.

What if I have a question about my order or certificate?
Contact ZeeDiamonds with your order number and any relevant photographs or report details. We will review your concern and help with the next steps.

4 mm Black Diamond Beaded Necklace with Sterling Silver Cross Pendant, Unisex, 18–24 Inches + Free Diamond Studs