3mm Tennis Necklace

Bolder brilliance, refined silhouette.
This 3mm lab-grown diamond tennis necklace features a strong visual rhythm of hand-matched stones, delivering 12.5 carats of uninterrupted light. Each E Colour / VVS1 Clarity diamond is precision-cut and claw-set in solid 14k white gold, engineered to sit seamlessly along the collarbone with natural fluidity and significant weight.
At 40cm (15.75"), this necklace offers a balanced fit - resting just above the neckline with sculptural presence. The design is completed with an inlaid diamond clasp, offering secure closure while preserving the clean, continuous line. With a total metal weight of 26.3g, this is a refined yet substantial collector’s piece.

Product Details

• 3mm Round Brilliant Cut
• 12.5ct: Total Carat Weight for 40 cm | 15.75 Inches
• E Colour 
• VVS1 Clarity
• Please refer to the link below for your diamond size to width comparisons

Craftsmanship: Handmade, ethical, enduring
• Solid 14k white and yellow Gold (26.3g) for 40 cm | 15.75 Inches
• Inlaid diamond security clasp closure
• Each stone is hand-selected for its exceptional cut, clarity, and ethical craftsmanship, using only the finest GIA-graded or equivalent lab-grown diamonds to ensure consistent quality across every carat size
• DURANT 'Marque' Insignia and gold stamping
• Engraved 'Limited Edition Number', as listed on our International Register

Styling notes:

Monumental in scale, timeless in composition.
This 3mm width commands presence - a luxurious collar piece ideal for statement styling. Best worn as a solo focus or stacked beneath delicate chains or pendant drops for directional layering. A modern heirloom for elevated dressing, bridal silhouettes, or black-tie minimalism.

For private commissions, bespoke sizing, or gifting, please contact us at durant@johannajohnson.com