



















[Koshu Precious Stones Plusthree] Brazilian Ametrine 6.457ct Loose Stone Patch
Ametrine allows you to enjoy both the purple of amethyst and the yellow of citrine. Both amethyst and citrine are types of quartz (crystal), and are called "bicolor quartz" in gemstone name and "shiousuishou" in Japanese.
This is Koshu Precious Stone Cut Plus Three by Yoichi Fukazawa, the creator of Koshu Precious Stone Cut . You can enjoy the intricate reflections of the cut from any angle. This is a high-quality ametrine with a beautiful bicolor split in the center and a deep color.
* This is a collaboration product between Yoichi Fukasawa and Caratz.
A special patch is included.
Type: Loose (natural stone)
・Stone name: Ametrine
Weight: 6.457ct
・Size: 13.9 x 9.9 mm
・Shape: Emerald cut
・Scratches/chips: S
Inclusions: S
·remarks:---
・Accessories: Caratz quality guarantee, loose case (if it does not fit, a clear zip case)
*We try to make the colors in the photos as close as possible to the actual product, but they may look slightly different from the actual product depending on the lighting conditions at the time of shooting and the monitor environment you are using. Also, some photos may have been taken using a penlight.
*For information on scratches, chips, treatments, and inclusions, please click here .
*For other frequently asked questions, please click here .
karatz_item_id: 12557022
Choose options














![[22602719 Posted] [Calafuri] Pt900/Pt850 Pink Tourmaline 1.10ct Diamond 0.02ct Pendant (Necklace) with Certificate](http://store.karatz.jp/cdn/shop/files/P8201335_0b8bc033-b13e-40fc-811d-d23e8ce639ce.jpg?v=1787965565&width=2870)
![[Listed in 22602716] [Colorfuri] K18WG Alexandrite 0.32ct Diamond 0.29ct Pendant Top with Certificate](http://store.karatz.jp/cdn/shop/files/collage_a2330eb3-6c4f-41e4-a644-3ee675d8ef48.png?v=1787965364&width=2000)
![[Published in 22602715] [Colorful] K18WG Alexandrite 0.64ct Diamond 0.04ct Pendant Top (Necklace Top) with Identification Report](http://store.karatz.jp/cdn/shop/files/collage_d65e1552-d979-4aeb-b60e-a5ba3ca1b2ad.png?v=1787965124&width=2000)
![[Published as 22602712] [Colorful] Pt900 Grossular Garnet 1.31ct Diamond 0.24ct Ring with Appraisal Report](http://store.karatz.jp/cdn/shop/files/P8190116_8f2918b4-96e0-4f40-ae59-160857a6b0b4.jpg?v=1787964834&width=4000)











![[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones](http://store.karatz.jp/cdn/shop/files/P4130575.jpg?v=1776126091&width=4000)
