Stone Monolith SM18 is a colourful quartz style boulder with strong hints of white and darker shades randomly spread throughout. Water glistens and bounces off the stone as it falls down the faces. Lighting will make a massive dramatic impact on this for enhanced evening garden enjoyment.

Large Reservoir Pack and LED Lighting available in the Basket.


1 in stock

Dimensions300 × 200 × 650 mm

Grey, Mixed, White


35mm (water flow)



Our blog contains an extensive guide for how to install a water feature.

Includes a detailed step by step and the recommended accessory products.

Installation Guide

FREE SHIPPING to standard UK postcodes.

Contact for remote area and international shipping quotes.

Contact Us


Delivery is usually within 5 working days, although we can hold stock for short amounts of time (birthday gifts, as one example – buy now and arrange a later delivery). 

Ioan aims to deliver most large pieces in person, although we do use a trusted & insured courier for smaller items, some exceptions and hard to reach locations.

Standard consumer rights apply, although we should highlight that in over 7 years in business we are yet to have one single product returned.

Delivery & Returns Info

Lighting and Accessory Packs are available in the Basket when purchasing ANY stone water feature.

Accessories for Welsh Slate Water Features


A stunning white boulder, the photograph shows Quartz Stone Monolith SM18 when it is wet, this will dry a slightly lighter colour. Delivery can be arranged with our courier, alternatively this can be collected from the workshop, strictly by appointment only. Stone Monoliths of this size and shape are getting increasingly popular in UK garden designs. For alternative water features in stock please check the online garden features shop. Alternatively, if you’re looking for something very bespoke then please contact us now with your requirements. With over 10 years experience and a portfolio of quarries, we can find the right feature for you.