Lab Grown Diamond Round Ribbed Men’s Signet Ring 3.00ct

The Stone(s)

The focal point of this design is a single, substantial 3.00 carat Round Brilliant cut center diamond. Selected from our standard stock tiers, this stone carries an F color grade—rendering it completely colorless to the untrained eye—paired with a VS1 clarity rating to guarantee an entirely eye-clean presentation free of visible inclusions. The stone’s optical performance is defined by its Excellent cut grade, providing clean internal faceting symmetry that maximizes light transmission and scintillation. This primary lab grown diamond shares identical physical, chemical, and optical properties with mined diamonds. Every center stone is independently graded by the International Gemological Institute (IGI), complete with a unique report number laser-inscribed directly on the stone’s girdle for online verification.

The Setting

Engineered for daily durability and optimal stone security, the setting features a robust 4-prong basket meticulously integrated into a flat, square signet-style head. The four low-profile claws are executed in contrasting white gold to blend seamlessly into the stone’s perimeter, anchoring the 3.00 carat diamond’s girdle securely while minimizing metal interference across the upper crown facets. Beneath the top plate, a low-profile, flush-fitting under-gallery protects the diamond’s culet while incorporating precise lateral light entry ports, allowing sufficient illumination to access the pavilions for continuous fire.

Metals and Finish

The default composition for this piece is solid 14K yellow gold (585 purity code), selected for its ideal balance of pure gold content and structural durability required for a high-mass men’s ring. The yellow gold body provides a warm, rich tone that contrasts sharply against the white gold setting prongs and the white brilliance of the center diamond. The entire piece receives a high-polish finish as default, accentuating the clean, reflective surfaces of the square shoulders and the deep, recessed valleys of the lateral ribbed architecture.

Customisation and Origin

Every ring is built entirely to order, allowing complete personalization of the final engineering metrics. Through our post-purchase workflow, you can adjust the metal choice across five distinct tiers—including 10K, 14K, or 18K gold in all three color tones, or premium 950 Platinum for ultimate density and prong security. Sizing is calibrated down to precise quarter and half-size international standard increments.

Checkout on primiraluxury.com triggers a dedicated production workflow: within 24 hours, our Surat team will reach out to confirm your exact specifications via WhatsApp and email before manufacturing begins. Standard production requires 15–35 business days, reflecting the time needed for meticulous bench assembly and rigorous quality evaluation. Deliveries within India above ₹10,000 ship free via Blue Dart or Delhivery within 2–7 business days after dispatch. International orders ship tracked and insured via USPS/India Post (17–19 business days) or via express carriers for a premium tier fee. Returns are accepted only where the delivered product is materially different from confirmed specs, damaged in transit, or the wrong item shipped, provided the request is filed within 7 calendar days of delivery.

The flat-top square silhouette and heavy metal mass distribute the weight evenly across the finger, making this an ideal statement ring for daily wear that remains comfortable throughout active schedules. Crafted in Surat — the city that cuts 90% of the world’s diamonds — and shipped factory-direct.

TECHNICAL SPECIFICATIONS MATRIX