material: Lab-grown Diamonds 0.20ct / No certificate / Top size H approx. 5.0mm x W approx. 5.0mm ・Chain 45cm / with adjuster parts Gold: K18YG Platinum: PT900 (chain is PT850) design: This is a simple necklace that allows you to fully appreciate the brilliance of lab diamonds. This item has a strong presence due to the diamonds set aro