Coda
A 0.43-carat oval polygon step-cut lab diamond at D color, VVS2 clarity, flanked by sixteen square-cut lab diamonds along a bypass shank, in 10k white gold. The oval polygon is a rare modified step cut — a transitional geometry that reads as both oval and faceted at once. A coda is the closing passage of a piece of music: not the end, exactly. What the composer says after the song thinks it's finished.
The Object
- Name: Coda
- Silhouette: Bypass shank with claw-prong center stone and diamond surround
- Edition: Made to order in 10k, 14k, or 18k white gold, in ring sizes 2 through 12 (including half sizes)
- Collection: Pinky Ring Drop, Spring 2026
The Stone
- Type: Lab-grown diamond
- Cut: Oval polygon step cut
- Carat weight: 0.43 ct (center stone)
- Color: D (the highest color grade)
- Clarity: VVS2 (near-flawless)
- Dimensions: 6.10 × 4.08 × 2.36 mm
- Accent stones: 16 square-cut lab diamonds, 0.160 ctw total
- Accent stone dimensions: 1.3 mm × 0.91 mm deep each
- Grade significance: D VVS2 is the top clarity-and-color pairing available in lab diamonds. Paired with Cushion Void — also D VVS2 — Coda forms one of two "clarity twin" pieces in this drop: identical grades, different cuts.
Specs describe the pictured piece. Made-to-order stones will fall within 0.2 ct of the pictured weight and matched as closely as possible to color and character.
The Metal
- Metal: Solid recycled 10k, 14k, or 18k white gold (choose at checkout)
- Gold weight: Approximately 2.12 grams in 14k (varies slightly by karat and size)
- Shank: 1.7 × 1.7 mm (bypass configuration)
- Finish: High polish, rhodium plated
Choose 10k for the most scratch-resistant, everyday-durable alloy with a warmer, quieter tone (41.7% pure gold). Choose 14k for the classic middle ground (58.5%). Choose 18k for the richest color and highest purity (75%).
Measurements
- Shank: 1.7 × 1.7 mm
- Profile height off finger: 4.05 mm (the lowest-profile piece in the drop)
Provenance & Certification
- Stone sourcing: Sourced through Catherine Peck's trusted lab-grown diamond partners
- Certification: Center stone IGI certified, report number LG741560036, for those who'd like the paper on record. Accent diamonds uncertified — selected by Catherine for fit and color match.
- Metal: Recycled solid white gold — 10k, 14k, or 18k, per your selection
Read more on our approach to stones and certification → On Stones
Production & Delivery
This piece is made to order in your chosen size and karat. The pictured piece is a size 4.5 in 10k white gold set with a 0.43 ct D-color oval polygon step-cut lab diamond; made-to-order stones will fall within 0.2 ct of the pictured weight and matched as closely as possible to its color and character. Production begins after your order is placed. Please allow 3–6 weeks from purchase to delivery.
Delivery: Fully insured shipping via UPS or USPS, calculated at checkout by package weight. Signature required on delivery. Complimentary on US orders over $500 and international orders over $1,000.
Care
Solid gold is durable enough for daily wear, including water exposure. For longevity, we recommend removing the ring during high-impact activity (weight training, rock climbing, manual labor) and avoiding direct contact with harsh chemicals including chlorine, bleach, and acidic cleaners. A soft-bristled brush and mild soap in warm water is sufficient for home cleaning. Note: Coda’s claw prongs can catch on fabric; we recommend extra care around knitwear. Complimentary cleaning, polishing, and inspection within the first year of purchase — see our Warranty & Repairs page for full coverage details.
