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Sold out Limited to 12 stones: 1 bicolor sapphire (slice) from Windsor, Tanzania. Discounts available for multiple purchases.
Sold out Limited to 13 stones! Sapphire Gacha! 1 loose unheated Sri Lankan sapphire stone. Multiple purchase discounts available.
Sold out Limited to 14 stones: Sea blue chalcedony 1 loose stone (blue) Multiple purchase discounts available
Sold out 《Limited to 14 stones》 1 stone Andalusite from Spain (3.0-3.5mm)《Multiple purchase discount available》
Sold out Limited to 14 stones: 1 Brazilian Goshenite loose stone (emerald cut) Multiple purchase discounts available
Sold out [Limited to 14 stones] 1 stone Sphene from Madagascar (3.5mm) [Discount available for multiple purchases]
Sold out 《Limited to 15 stones》November birthstone 1 stone Imperial Topaz from Brazil《Multiple purchase discount available》《For beginners》
Sold out Limited to 17 stones: Peridot green diamond (treated, VS class equivalent, 2mm) Multiple purchase discounts available
Sold out Limited to 1 set: Pair of two Myanmar rubies, Sanjay cut
Sold out Limited to 1 set Synthetic sapphire & cubic zirconia Multiple purchase discounts available
Sold out [Limited to 1 stone] Tibetan bicolor andesine (color change andesine) 1 stone (3mm, round cut) [Multiple purchase discount available]
Sold out Limited to 24 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available
Sold out モンタナサファイア1石ルース(約4×3mm,ペアシェイプ)《複数購入割引有》
Sold out 《Limited set of 2》German auinite rough stone/loose 2 stone set《Multiple purchase discount available》
Sold out Limited to 2 stones: 1 loose scapolite stone from Afghanistan (purple fluorescent) Discounts available for multiple purchases

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.