Can I get a black beads mangalsutra within 8–9 grams of gold? Need suggestions!

Hi everyone!
I’ve been paying 10k per month for 11 months under the GRT Gold Scheme, and now i have nearly 8–9 grams of gold. I’m planning to get a short black beads mangalsutra (nallapusalu) using my gold savings.
I wanted to know if 8–9 grams would be enough for a decent short black beads chain, or if the gold weight could be more or less depending on the design.
If anyone has recently purchased a black beads mangalsutra from GRT or any other jewellery store, could you please share pictures of your designs, along with the gold weight and approximate price? It would really help!!