Fyberspates Cumulus Yarn is a similar yarn: baby suri, hand wash, and lace (33 sts or more/4 in). You may also like The Fibre Company Knightsbridge Yarn, which is another similar yarn: hand wash and 50 gram.
What about yarn that have the same look and feel? Find more yarn with a smooth / uniform texture, a low (drapey) twist, and is machine dyed.
You may enjoy taking a look at the Rowan Fine Lace Worship, Rowan Fine Lace Jackie, and Rowan Kidsilk Haze/Fine Lace Eva Cardigan kits all using Rowan Fine Lace Yarn.
Hopefully our suggested project ideas for Rowan Fine Lace Yarn can help you come up with your next exciting new project idea!