- 0.26 ct lab-grown diamond (D color · VS1+ · Triple Excellent) for crystal-clear brilliance - Timeless stud silhouette suited to both business and casual wear - Secure Japanese locking backs crafted from medical-grade stainless steel Product details Center stone - Lab-grown diamond (Round Brilliant) - 0.26 ct per ear / 0.52 ct total - D color, VS1 clarity+, Triple Excellent cut+ - Grading certificate included Posts & Backs - Stainless steel posts - “Ochinai-kun 2” secure locking clutch backs Metal - Platinum 950 (post: Pt900) - 18 K Yellow Gold - 18 K Pink GoldSelect your preferred metal. Top Size Approx. 4.2 mm (H) × 4.2 mm (W) Clip-on option Available (additional charge).Please select “Clip-on” in the options menu. Expected Shipping Timeline Made-To-Order (4-8 weeks) Learn more about our diamond quality standards here.*Carat weight may vary slightly from piece to piece; the finished stone will always meet or exceed the carat size you select.