# The Hyacinth Nose Screw

The BIS hallmark is a system that provides certification of gold that indicates the purity of the metal. It authenticates that a piece of gold jewelery purchased, conforms to the standards as laid by the Bureau of Indian Standards which is the national standards organization in India.

This hallmarking of gold jewelery was established in April 2000. It consists of a BIS logo, a 3 digit number that indicates the gold purity, the logo of the assaying center along with the logo or the code of the jeweler and the code that indicates the hallmarking date. This hallmarking has a high reputation among the jewelery industry in India.

## Details

- **Price:** 0.0 INR
- **Vendor:** Aggarwal jewels
- **Type:** Nose pins
- **Tags:** Authentication certificate, Hallmarked Jewellery

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 0.0580 CT / GROSS WEIGHT = 0.35 GRAM / GROSS WEIGHT = 0.3 GRAM | 0.00 INR | In stock |
| 0.0580 CT / GROSS WEIGHT = 0.35 GRAM / NET WEIGHT = 0.28 GRAM | 0.00 INR | In stock |
| 0.0580 CT / NET WEIGHT = 0.336 GRAM / GROSS WEIGHT = 0.3 GRAM | 0.00 INR | In stock |
| 0.0580 CT / NET WEIGHT = 0.336 GRAM / NET WEIGHT = 0.28 GRAM | 0.00 INR | In stock |

## Images

- Gold nose screw with round diamond cluster and four small ball accents
- Gold nose screw with faceted gem set in a star-shaped prong head
- Gold nose screw back plate with star-shaped head and smooth post
- Gold nose screw side view with four-prong set center gem and cap
- Round diamond nose screw with star setting and small ball accents
- Gold nose screw close-up with star-shaped head and smooth post end

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> Source: [Aggarwal Jewels](https://aggarwaljewels.com/products/the-hyacinth-nose-screw)
> Updated: 2026-06-24