Based on our analysis of AGS 0 Ideal princess cut diamonds, a crown height of 9-14% will yield the best light performance. Crown height is not provided on GIA certificates, so it must be judged visually. Here we provide a set of reference images spanning the optimal crown height range. These images should help you evaluate a princess cut diamond’s proportions.
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Crown Height 9%
![Princess Diamond Crown Height 9.6%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_9.6_percent_sku_3448757.png)
![Princess Diamond Crown Height 9.7%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_9.7_percent_sku_3212883.png)
Crown Height 10%
![Princess Diamond Crown Height 10.2%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_10.2_percent_sku_3448758.png)
![Princess Diamond Crown Height 10.7%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_10.7_percent_sku_3495275.png)
![Princess Diamond Crown Height 10.7%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_10.7_percent_sku_3448761.png)
Crown Height 11%
![Princess Diamond Crown Height 11.1%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.1_percent_sku_2393538.png)
![Princess Diamond Crown Height 11.2%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.2_percent_sku_3033783.png)
![Princess Diamond Crown Height 11.3%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.3_percent_sku_2502541.png)
![Princess Diamond Crown Height 11.5%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.5_percent_sku_3448759.png)
![Princess Diamond Crown Height 11.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.9_percent_sku_2393528.png)
![Princess Diamond Crown Height 11.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_11.9_percent_sku_2782427.png)
Crown Height 12%
![Princess Diamond Crown Height 12.0%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.0_percent_sku_2617267.png)
![Princess Diamond Crown Height 12.1%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.1_percent_sku_3448760.png)
![Princess Diamond Crown Height 12.3%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.3_percent_sku_2439091.png)
![Princess Diamond Crown Height 12.4%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.4_percent_sku_3448751.png)
![Princess Diamond Crown Height 12.5%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.5_percent_sku_2055586.png)
![Princess Diamond Crown Height 12.5%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.5_percent_sku_3377019.png)
![Princess Diamond Crown Height 12.5%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.5_percent_sku_3448753.png)
![Princess Diamond Crown Height 12.5%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.5_percent_sku_3448754.png)
![Princess Diamond Crown Height 12.6%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.6_percent_sku_1905557.png)
![Princess Diamond Crown Height 12.7%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.7_percent_sku_2617249.png)
![Princess Diamond Crown Height 12.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_12.9_percent_sku_2393539.png)
Crown Height 13%
![Princess Diamond Crown Height 13.2%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.2_percent_sku_2617263.png)
![Princess Diamond Crown Height 13.3%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.3_percent_sku_3502539.png)
![Princess Diamond Crown Height 13.4%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.4_percent_sku_2617265.png)
![Princess Diamond Crown Height 13.6%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.6_percent_sku_3869985.png)
![Princess Diamond Crown Height 13.7%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.7_percent_sku_2439114.png)
![Princess Diamond Crown Height 13.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_13.9_percent_sku_2439109.png)
Crown Height 14%
![Princess Diamond Crown Height 14.0%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_14.0_percent_sku_3473310.png)
![Princess Diamond Crown Height 14.1%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_14.1_percent_sku_3473312.png)
![Princess Diamond Crown Height 14.2%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_14.2_percent_sku_3473309.png)
![Princess Diamond Crown Height 14.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_14.9_percent_sku_3340992.png)
![Princess Diamond Crown Height 14.9%](https://www.diamondscreener.com/wp-content/uploads/2017/11/princess_diamond_crown_height_14.9_percent_sku_3377020.png)