6 mm Black Diamond Long Chain Necklace

Add a distinctive touch to your jewelry collection with this black diamond long chain necklace from ZeeDiamonds. Approximately 6 mm round faceted black diamond beads create a rich black appearance with light-catching surface reflections.

Choose from chain lengths of 18–36 inches to suit your preferred look. A stamped solid 925 sterling silver lobster clasp completes the design, with white rhodium, rose gold, black gold, and yellow gold finish options available.

Wear it on its own or pair it with your favorite jewelry for a layered look. The listed finish options are available at no extra charge.

Product Details

Diamonds Color - Black
Shape – Round Faceted
Approx. Size of Diamond Beads – 6 mm
Origin of Diamonds – Central Africa - Conflict Free
Species - Carbonado - Earth Mined
Clarity - Opaque
Quality - AAA
Cut - Excellent
Length of chain - 18-36 Inches (options below)
Clasp - Stamped Solid in 925 Sterling Silver Lobster Clasp in White Finish
Finish: The necklace is available in white rhodium finish, rose gold finish, black gold finish, yellow gold finish. Please mail us if you want something different than what is listed at the time of placing the order. There are no extra charges for the finish.

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 round 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 lobster clasp is described as stamped solid 925 sterling silver in a white finish.

The listed necklace finishes are white rhodium, rose gold, black gold, and yellow gold, available at no extra charge. The selected finish does not mean the metal is solid gold.

Please email us when placing your order if you would like a finish different from the listed options, so we can confirm availability.

The silver is described as having nickel-free rhodium plating. A separate additional 18K gold plating service is also listed at an extra charge; please contact us to confirm how this differs from the standard finish options and request 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 faceted black diamond beads measure approximately 6 mm.

What chain lengths are available?
Chain lengths range from 18 to 36 inches. Select your preferred length from the available product options.

What is the total diamond weight?
The total diamond weight is not specified in this listing. Please contact us for the weight of your preferred necklace length.

What clasp does the necklace have?
The necklace has a lobster clasp described as stamped solid 925 sterling silver in a white finish.

What finishes are available?
White rhodium, rose gold, black gold, and yellow gold finishes are available. These finish names do not indicate solid gold construction.

Is there an extra charge for the listed finishes?
No. The listed finish options are available at no extra charge. A separate additional 18K gold plating service is listed at an extra charge; contact us for details.

Can I request a different finish?
Please email us when placing your order so we can confirm whether your requested finish is available.

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.

6 mm Black Diamond Long Chain Necklace, Sterling Silver Lobster Clasp, 18–36 Inches + Free Diamond Studs