Jewellery Utilities & Ring Sizer | Peaceful Investments

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Ring Size Module

Auto-calibrated digital tool to measure an existing ring against your screen.

Birthstone Finder

Lookup primary and alternative birthstones categorized by birth month or zodiac sign.

Global Hallmark Search

Identify metal purities and origins by searching international hallmark stamps.

Live Spot Prices (Per Gram)

9K GOLD

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10K GOLD

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14K GOLD

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18K GOLD

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24K GOLD

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TOLERANCE GUIDE

Standard variance for stone-to-setting fitting.

Setting Size	Acceptable Stone Range
2.0 mm	1.9 mm - 2.1 mm
3.0 mm	2.9 mm - 3.1 mm
4.0 mm	3.8 mm - 4.2 mm
5.0 mm	4.8 mm - 5.2 mm
6.0 mm	5.8 mm - 6.2 mm
6.5 mm (1ct eq.)	6.3 mm - 6.7 mm
7.0 mm	6.8 mm - 7.2 mm
7.5 mm	7.3 mm - 7.7 mm
8.0 mm (2ct eq.)	7.8 mm - 8.3 mm
9.0 mm (3ct eq.)	8.7 mm - 9.3 mm
10.0 mm	9.7 mm - 10.3 mm
11.0 mm	10.7 mm - 11.3 mm
12.0 mm	11.7 mm - 12.3 mm

Note: Fancy cuts require tighter tolerances across corners to ensure structural integrity.