House of Onyx is a distinctive jewelry store located at 120 N Main St, Greenville, KY 42345, operating in Muhlenberg County. Established in 1967, it is known for its high-quality diamond and gemstone jewelry, along with a wide selection of engagement rings. The staff at House of Onyx, particularly noted in reviews for their courteous and helpful nature, are eager to assist customers in selecting jewelry that embodies their unique vision for engagement rings.

Operating hours are as follows:

| Day | Hours |
|-----------|-------------------|
| Monday | 9:00 AM - 5:00 PM |
| Tuesday | 9:00 AM - 5:00 PM |
| Wednesday | 9:00 AM - 5:00 PM |
| Thursday | 9:00 AM - 5:00 PM |
| Friday | 9:00 AM - 4:00 PM |
| Saturday | Closed |
| Sunday | Closed |

Overall Sentiment from Online Customer Reviews:
Customer sentiment is mixed, with approximately 60% positive, 20% neutral, and 20% negative feedback gathered from 17 reviews. Many customers praise the variety and quality of products available, alongside the helpful service provided by the staff. However, some negative experiences highlighted issues with product durability and customer care regarding returns.

Best Review:
Desmond expressed that House of Onyx is the best rock shop he has ever visited, praising the owner’s fantastic service and the informative tour he received during his visit.

Worst Review:
Alexis criticized the store for a necklace that fell apart upon receipt, mentioning a lack of compassion from the owner when she sought assistance outside the 30-day return window.

* For this overview, customer feedbacks were viewed on Yelp, Google, and Facebook.