Is this your table, or can you provide a picture. What are your chairs like and do you have any other furniture, as suggesting a color with only knowing the walls will be grey (light - dark?) isn’t enough information. Are you looking at a solid or patterned with a few colors? Provide as much information as you can and pictures of room.

you want color recommendations but post no pictures?

We are currently painting the dining room grey

lol. do you know how many 'gray' paint colors there are?

light gray? warm gray? dark gray? blue-gray? green-gray? etc

My new light fixture will be gold.

Ditto 'gold'. modern? crystal? dark/champagne gold? style?

You want us to recommend a rug/color, but we have no idea what the room looks like, other than vague "gray and gold" base colors . What's the flooring?

Does this room border other rooms/furniture?

how big is the rug in order to fit the table and the chairs (what color chairs?)

Is this the arhaus table? 60" ? 48" ? 39" ?

so you want the rug to fit this? or some othe size like the rectangle?

(nice table. )

if you're doing a cooler gray, this one could work, (unless you want a round rug)

or I like the ideas of a flat weave layered w/a hide rug

but again, have no idea if these would work in your space

we don't even know your chairs

round rug/round table

rectangle rug/round table

it would make our work easier if you posted a picture of the actual room where this rug is going, picture of the light, and the name of the wall color you're using, or else it's a shot in the dark for the color choices.

I would consider going with an abstract-design rug that is mainly white/gray/gold and bring in the pop of color with the chairs and/or art.

Hard for us to judge how much color you like! Do you have art that might serve as an inspiration? With your neutrals, there are many directions to go, from just a little color to quite a bit!

Skye Printed Area Rug by Loloi II, Denim/Natural, 7'6"x9'6" · More Info

Bohemian Flair Boho Vintage Faded Area Rug, Navy/Cream, 8x10 · More Info

Mohawk Prismatic Blossoms Rug, 3' X 5' · More Info

Couristan Kashimar Imperial Baktiari Area Rug, Antique Red, 7'10" x 11'2" · More Info

You don't say what your chairs are like, or whether there is color visible from adjacent spaces, but all of those things can contribute to your rug choice...

Dining Room · More Info

Leather District Loft · More Info

Dining Rooms · More Info

Greenwich Village Apartment · More Info

Pacific Heights Residence · More Info

Anyway, hope this helps!