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 center stone and diamond surround
- Edition: One of one
- Size: US 4.5
- 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.
The Metal
- Metal: 10-karat solid white gold
- Gold content: 41.7% pure gold (417 stamp)
- Gold weight: 2.12 grams
- Shank: 1.7 × 1.7 mm (bypass configuration)
- Finish: High polish, rhodium plated
- A note on 10k: 10-karat gold is the strongest everyday gold alloy — more scratch- and dent-resistant than 14k or 18k. For white gold, this hardness makes it especially well-suited to holding top-grade stones without flex or stress on the setting.
Measurements
- Ring size: US 4.5
- Shank: 1.7 × 1.7 mm
- Profile height off finger: 4.05 mm (the lowest-profile piece in the drop)
This ring is a one-of-one piece in a single size. It cannot be resized without compromising the design. If you are between sizes or would like to discuss a custom version in your size, please book an appointment.
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 10-karat white gold
Read more on our approach to stones and certification → On Stones
Production & Delivery
This ring has already been made. It exists in a single size, as a single object. Once it finds its wearer, it cannot be remade.
Delivery: Complimentary insured shipping within the US. Signature required on delivery. International shipping available on request.
Care
10-karat 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. We offer complimentary lifetime polishing and inspection on every piece.
