6 mm Black Diamond Beaded Necklace

Add a distinctive finishing touch to your look with this black diamond beaded necklace from ZeeDiamonds. Featuring approximately 6–6.5 mm round faceted beads, the necklace combines a deep black appearance with light-catching reflections across each faceted surface.

Choose from necklace lengths of 16–28 inches and Silver finish . A stamped solid 925 silver lobster clasp completes the necklace.

Wear it alone for a classic statement or layer it with your favorite jewelry. Free diamond stud earrings are included as a special offer.

Product Details

Diamonds Color - Black
Shape of Beads – Round Faceted
Approx. Size of Beads – 6 mm - 6.5 mm
Approx. Weight of Diamonds - 140 Cts for a 18 Inches Length
Origin of Diamonds – Central Africa (Conflict Free)
Species - Carbonado - Earth Mined
Treatment - HPHT
Quality - AAA
Length of Necklace -16 to 28 inch (Options Below)
Clasp - Stamped Solid in 925 Silver Lobster Clasp

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.

Metal & Finish Information

The lobster clasp is stamped solid 925 silver.

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.

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

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.

What necklace lengths are available?

Lengths range from 16 to 28 inches. Select your preferred length from the available product options.

What is the size of the beads?

The round faceted beads measure approximately 6–6.5 mm.

What is the total diamond weight?

The approximate diamond weight is 140 carats for an 18-inch necklace. The total weight varies with the selected necklace length.

Is the clasp sterling silver?

The lobster clasp is described as stamped solid 925 silver. The selected finish does not mean the clasp is solid gold.

Are free diamond studs included?

Yes. Free diamond stud earrings are included as part of the special offer. Contact us for their size, weight, and metal details.

Is a certificate included?

Yes. A Certificate of Authenticity is provided. Contact us for laboratory and verification details.

Can a handheld tester confirm authenticity?

A handheld tester alone may not reliably distinguish some treated black diamonds from other materials. Identification should be assessed by a qualified gemological laboratory using appropriate testing equipment.

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 Beaded Necklace, 925 Silver Clasp, 16–28 Inches + Free Diamond Studs