Did you look at the questions on the sidebar of the Houzz photo?
This discussion was in the Q&A
" The Impatient Gardener
As mentioned above, it is Circa Lighting's Andover pendant. http://www.circalighting.com/details.aspx?pid=3244
January 2, 2013 at 7:59pm Like
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July 6, 2013 at 7:11am Like 1
PRO
DeCesare Design Group, Inc.
Unfortunately they've been discontinued.
August 27, 2013 at 3:42pm Like
PRO
DeCesare Design Group, Inc.
Catherine, I'm not sure which lights you purchased, but I can promise you the lights in the picture are from Lauren by Ralph Lauren.
September 9, 2013 at 10:23pm Like
ehjuan
I bought these lights for over my island on Ralph Lauren.com. What sort of fixture should I use over my kitchen t

Here is a link that might be useful: [Houzz_link[(https://www.houzz.com/photos/park-place-at-silverleaf-traditional-kitchen-phoenix-phvw-vp~1066224)

This post was edited by mlweaving_Marji on Tue, Nov 5, 13 at 22:02

There is a section in Houzz that lists all the lightning shown, cost and where to buy.
Your lighting inquiry appears to be discontinued as written in the Q&A section.
There is a similar light sold by kitchler that has the same body but the top is not circular but a sloped roof.
If you enter pendant lights as a search the page will open with a tab showing pendants seen on the Houzz site. They have over 38 thousand lights to view.
good Luck