



















【Sales start 5/13 10 PM JST】Sri Lankan Bi-Color Sapphire, 0.434 ct Loose Stone
While many gemstones are bicolored, if you're looking for a stone with a wide variety of color combinations and a hard luster, it's "bicolor sapphire." Sapphires boast a diverse range of hues, including blue, pink, colorless, orange, and yellow. It's a natural wonder to find such distinct personalities blended within a single stone. They are also known as "parti-colored sapphires."
This is a highly transparent bicolor sapphire with a shield cut, crafted by Sri Lankan polisher Mr. Sanje. It features a meticulously executed cut that ensures no color loss when viewed from the front.
・Type: Loose stone (natural stone)
・Gem name: Bicolor Sapphire
・Weight: 0.434ct
・Size: 5.4×4.3㎜
・Shape: Custom cut
・Scratches/Chips: S
・Inclusions: S
・Notes: Heat treatment has been performed.
*Sapphires are generally gemstones that have undergone heat treatment.
・Accessories: Karatz quality guarantee, loose stone case (clear zip case if it doesn't fit)
▷Jewelry customization available
If you would like jewelry customization, please order your desired setting along with the stone from the link below.
・【Choose your stone】Simple Order
・【Choose your stone】Semi-Order
※If you would like an image of the stone placed in a setting, would like to discuss a custom order, or have any other questions or inquiries, please feel free to contact us here.
※Rough stones are not eligible. Also, some stones may not be eligible for customization.
※ We strive to ensure that the photos show the same colors as the actual product, but due to lighting conditions during photography, your monitor environment, etc., there may be slight differences in appearance from the actual product. Also, some photos may be taken using a penlight.
※ For information on scratches/chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12561149
Choose options


























![[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/2026-08-0914.21.02.png?v=1786252887&width=1343)
![[Use the #202509 Campaign] 2025 New Year's Lucky Bag 🎍 Gem Gacha Lucky Bag with 4 or more gemstones (worth ¥25,000) [Discount for bulk purchase of lucky bags]](http://store.karatz.jp/cdn/shop/files/gazou.png?v=1785994448&width=1254)
![[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available*](http://store.karatz.jp/cdn/shop/files/collage_07f6900d-fa8d-4bc4-acda-dc4cf0e8fed7.png?v=1785923452&width=4000)
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_0f6126db-fe6e-4ec4-ab15-e86a0e08371b.png?v=1786253811&width=2000)
![[Posted on 12563959] Madagascar Padparadscha Sapphire 0.164ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P7241965_cec751e0-3766-4ff6-a740-715fc57f7e8e.jpg?v=1786398430&width=2936)




















![[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)