6 mm Black Diamond Beaded Necklace

Add a distinctive finishing touch to your jewelry collection with this 6 mm black diamond beaded necklace from ZeeDiamonds. Round faceted beads combine a rich black appearance with light-catching surface reflections.

Choose from necklace lengths of 16–30 inches and White Gold, Rose Gold, Yellow Gold, or Black Gold finish options. The 16-inch strand has an approximate diamond weight of 120 carats.

Wear it on its own or pair it with your favorite jewelry for a layered look. This black diamond necklace also makes a thoughtful gift for an anniversary, birthday, or Christmas.

Product Details

Diamonds Color - Black
Shape – Round Cut Faceted
Approx. Size of Diamond Beads – 6 mm
Approx. Weight of Diamonds - 120 Cts. (For 16 Inch Strand)
Origin of Diamonds – Central Africa - Conflict Free
Species - Carbonado - Earth Mined
Clarity - Opaque
Quality - AAA
Finish - White Gold, Rose Gold, Yellow Gold, Black Gold (Options Available)
Length - 16 to 30 Inches (Options Available)
Clasp - Stamped Solid in 925 Sterling 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. Please contact us for laboratory and certificate verification details.

Metal & Finish Information

The standard clasp is described as stamped solid 925 sterling silver with a lobster clasp closure.

Available finishes include White Gold, Rose Gold, Yellow Gold, and Black Gold. A gold-colored finish on the sterling silver clasp does not mean the clasp is 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.

Optional clasp upgrades:

Gold-filled clasp: listed at an additional $10 USD. Please contact us to confirm its construction and gold-layer specifications.
Solid gold clasp: listed at $55 USD. Please contact us to confirm gold karat, availability, and the final upgrade charge.

Clasp options are offered in White, Yellow, Rose, and Black finishes. Please email us when placing your order if you require a clasp other than the standard 925 sterling silver clasp in a white finish.

If you have a known metal sensitivity, please request details about the selected clasp and 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 necklace lengths are available?
Lengths range from 16 to 30 inches. Select your preferred length from the available product options.

What is the diamond weight?
The approximate diamond weight is 120 carats for the 16-inch strand. Please contact us for the diamond weight of other available lengths.

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 is a lobster clasp?
A lobster clasp is a spring-operated fastening that connects the two ends of the necklace. The standard clasp for this necklace is described as stamped solid 925 sterling silver.

Can I upgrade the clasp?
Yes. Gold-filled and solid gold clasp options are listed. Please email us when placing your order to confirm the material, finish, availability, and final price of your preferred upgrade.

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 Beaded Necklace, 16–30 Inches, Sterling Silver Lobster Clasp + Free Diamond Studs