



RG Crystals
RG Crystals is a leading supplier of lab grown gemstones, trusted by the jewelry industry for our expertise in single-crystal growth.
With over 25 years of experience, our team has mastered and enhanced advanced growth methods like Czochralski, Hydrothermal, and Flame Fusion to deliver exceptional quality.
Our catalog is one of the largest and diverse in the industry, offering both rough and cut gemstones to meet every need, including: emerald, ruby, sapphire, alexandrite, spinel, opal, rutile, cubic zirconia and more.
We carefully sort our materials to ensure the highest quality. Materials like lab grown emeralds and alexandrites undergo a detailed sorting and grading process. This allows us to offer stones that meet specific requirements, whether it's for high-end jewelry or more affordable pieces.





We aim to make gemstones sustainable, ethical, and affordable for everyone — from beginner jewelers to major jewelry brands. Our lab grown stones are a reliable choice for creating beautiful, responsible jewelry.

SUSTAINABLE

ETHICAL

AFFORDABLE
GET SOCIAL WITH US


1249/151, Gems Tower, 17th Floor, Charoenkrung Road, Suriyawong, Bangrak, Bangkok, Thailand 10500
Tel: +66 22674920
Fax: +66 22674921








![This lab grown orange sapphire gets its vivid glow from a precise balance of trace elements locked into the crystal as it grows. Because the Czochralski method keeps the crystal lattice exceptionally uniform, the color spreads evenly without zoning - which is why this stone shows a clean, fiery orange instead of patchy tones when cut and viewed from any angle.
• SHAPE: CUSHION
• SIZE: 12x12
• WEIGHT: 7.75 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#sapphire #labgrownsapphire #orangesapphire
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![This bi-color synthetic sapphire is a single crystal with two personalities. During growth, a controlled shift in trace elements changed how the crystal absorbed light, creating a natural-looking color split inside one continuous structure. It isn’t a coating or a join - the transition happens within the crystal lattice itself, making every cut a different visual experience.
• SHAPE: CUSHION
• SIZE: 20x13
• WEIGHT: 22.14 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#bicolor #syntheticsapphire #bicolorsapphire
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![Join us at the @jogsshow where we will be exhibiting our stunning collection of lab grown Rough & Cut gemstones. We look forward to connect with you all & welcome you to explore the beauty and craftsmanship of our collection.
🗓️ 28th January - 8th February
📌 Tucson Gem Expo, USA
💠 Booth: E600 - E601
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#gemexhibition #joggshow #labgrowngems
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![This synthetic bi-color sapphire is special because its two distinct colors form within a single crystal, not by coating or joining. During flame fusion, trace elements are adjusted mid-growth, allowing one sapphire crystal to smoothly transition from one hue to another - creating a natural-looking color divide that feels almost painted by light itself.
• SHAPE: OCTAGON
• SIZE: 20x10
• WEIGHT: 17.86 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#bicolor #bicolorsapphire #syntheticsapphire
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![🟢 These lab-grown Zambian emeralds are valued for its cooler green tone & a signature look that comes from controlled iron content during hydrothermal growth. That balance gives the stones a calm, sophisticated glow - less flashy, more refined, making it a favorite for collectors who value depth over brightness.
• SHAPE: CUSHION
• SIZE: 8x8
• WEIGHT: 3.7 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#emerald #labgrownemerald #labgrowngems
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![💎 Lab Grown Forsterite grown using the Czochralski method - displays a rare, deep blue brilliance that’s hard to find even in nature. Its intense color, excellent transparency, and precision cut makes it a standout for collectors, designers, and visionaries alike.
• SHAPE: ROUND
• SIZE: 16
• WEIGHT: 14.75 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#forsterite #labgrownforsterite #labgrowngems
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![That deep green you love -
without mining the earth.
Our lab grown emeralds carry the same chemical composition, brilliance, and timeless beauty as natural emeralds - just created more responsibly.
Crafted with science & precision,
Chosen by modern collectors.
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownemerald #labgrowngemstones #emerald
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![Join us at @vicenzaoro, where we will be exhibiting our stunning collection of lab grown Rough & Cut gemstones. We look forward to welcoming you to explore the beauty of our creations
🗓️ 16 to 20th January
📌 Vicenza, Italy
💠 Hall 3.2 - Booth 137
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#vicenzaoro #gemshow #vicenza
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![Two stones, two temperaments.
🔵 The lab grown sapphire crafted through Czochralski method is all about precision - clean lines, crisp sparkle, and a glass-like calm.
• SHAPE: PEAR
• SIZE: 16x10
• WEIGHT: 7.15 CTS
🟢 The lab grown emerald crafted through hydrothermal method embraces character, with soft internal textures and a rich green depth.
• SHAPE: PEAR
• SIZE: 8.7x12
• WEIGHT: 8.79 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownemerald #labgrownsapphire #emeralds
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![The Czochralski grown ruby delivers crisp geometry and a bold crimson glow, while the hydrothermal Colombian emerald grows slowly, developing natural-style features and a rich, lush green.
• SHAPE: OVAL
• SIZE: 16x12
• WEIGHT: 7.67 CTS
&
• SHAPE: OCTAGON
• SIZE: 12x12
• WEIGHT: 12.28 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownemerald #labgrownruby #rubyemerald
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![💎 Lab Grown Colombian Emeralds created through the hydrothermal method grow in a pressurized, water-rich environment that closely mimics Colombia’s natural emerald formation. This allows the stone to develop soft jardin-like inclusions and a lush, vivid green glow - the characters emeralds are admired for.
💍 Ring by @gem.adele
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownemerald #colombianemerald #emerald
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![💎 Hydrothermal Lab Grown Zambian Emeralds develop their signature deep green color from chromium and iron interacting during slow crystal growth in a water-rich environment—the same chemical conditions found in natural Zambian mines.
💎 This process also allows the formation of fine, natural-style inclusions, giving each stone a character-rich, authentic emerald appearance.
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownemerald #zambianemerald #emerald
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr8-1.cdninstagram.com/v/t51.82787-15/611608162_18434541595128265_7914141000887557305_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=107&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=WIMTyP7eYe4Q7kNvwFhWjUU&_nc_oc=AdkSA_sfMhrWFd-CCAKrwaDemxVflsG4YXQ_Fe2n8nJNQyxzXP1vCh4EfOMGQw0mxZ0&_nc_zt=23&_nc_ht=scontent-lhr8-1.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AfuBVZOTxkC23qmJgvOFbF0Fi3TICKv20WZGCMwaQVl2fA&oe=6985A370)
![A season of sparkle, gratitude, and new beginnings 💎 As the year turns, we thank each & every one of you for being part of our journey and for choosing brilliance that lasts forever.
✨ Merry Christmas & a Shimmering New Year 2026 ✨
We’ll be back, brighter than ever, on 5th January. Until then - may your celebrations shine as brilliantly as our gems.
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#merrychristmas #happynewyear #2026
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr6-1.cdninstagram.com/v/t51.82787-15/586683604_18432777808128265_1062234420565081045_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=109&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=qc9Ar-YHtCUQ7kNvwHbK5Ge&_nc_oc=AdllMMMOy3azQ4o92WKmqYLLLCo5J8wr_2jMfKfl4Ch1tJoRVVIZBwSKH_08G85V5wg&_nc_zt=23&_nc_ht=scontent-lhr6-1.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_Afvs0vj6nYRhCeVdNxmGF0Im5DmCNlZnCJe3pFwYXB9YaA&oe=6985A604)
![✨ These earrings feature Lab Grown Sapphires created using the Czochralski Method - a technique that allows crystals to form with remarkable clarity and depth of color. Their rich midnight-blue hue is the result of controlled trace elements and slow, precise crystal pulling, giving each stone an exceptional brilliance. Designed by @gem.adele, crafted to captivate.
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrownsapphire #sapphire #bluesapphire
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr8-2.cdninstagram.com/v/t51.82787-15/597811415_18430888195128265_6745207469816647365_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=103&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=svrUB8WFPLEQ7kNvwFdoqNz&_nc_oc=AdlMdU_fMUJkIdgR0Cx8v-5FBEhSC0qLfcC_9xTjY_9gx6EuOyGe5G1YW_X3AeMK2ps&_nc_zt=23&_nc_ht=scontent-lhr8-2.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AftlRnGWGncqaRB9zrsj5_R-CHc34CnkEod1C8rFhBNknQ&oe=6985CB2C)
![Built with stabilized silica patterns, this Synthetic Impregnated Opal holds onto light in tiny micro-structures which produces a lasting, flame-like color play that never dulls.
• SHAPE: ROUND CAB
• COLOR: 4B
• SIZE: 12
• WEIGHT: 5.56 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#syntheticopal #impregnatedopal #opal
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr6-2.cdninstagram.com/v/t51.82787-15/588765970_18430637650128265_4176204050440459959_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=105&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=0iPhxhn97c4Q7kNvwGXYw1l&_nc_oc=Adkgv2KSnGdWEOFxtopOaAnh9NY2AxzXc3T-ndqJOiBidklxne-bm_xZIQGs8MKVYAI&_nc_zt=23&_nc_ht=scontent-lhr6-2.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AfuDHbr_-W1KVl6lU6txluLho8BmBCIeZrnQ1FU4TyeGOQ&oe=6985BB48)
![This Synthetic Aurora Opal gets its name from the Northern Lights - its color shifts are created by microscopic silica layers that scatter light just like atmospheric particles do during an aurora. The result: a soft, ethereal glow that changes with every angle.
• SHAPE: OVAL CAB
• SIZE: 18x13
• WEIGHT: 6.3 CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#syntheticopal #auroraopal #opal
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr8-1.cdninstagram.com/v/t51.82787-15/589401562_18430251010128265_8218636198950800198_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=107&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=_ca8ftUHYzUQ7kNvwEC84ER&_nc_oc=Adlb_39xiZWEYCdf0KJVkjblopKUV-Cku3HfJHs7ijtcB2islzhkrUPFDPWWfmY6eag&_nc_zt=23&_nc_ht=scontent-lhr8-1.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AfudaAFJc30gXj_DRW-gXCMU0xyURBGxC_5Y9TFmrhcYtw&oe=6985A307)
![These Synthetic Impregnated Opals get their mesmerizing fire from a carefully stabilized silica structure - meaning the vibrant rainbow play-of-color stays crisp, consistent, and resistant to cracking or drying out over time. A perfect balance of beauty and durability.
• SHAPE: OVAL CAB
• COLOR: 10C
• SIZE: 12x10
• WEIGHT: 3.92 CTS
• SHAPE: ROUND CAB
• COLOR: 10B
• SIZE: 8
• WEIGHT: 2.78 (PAIR) CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#syntheticopal #impregnatedopal #opal
[labgrown gemstones, labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr8-1.cdninstagram.com/v/t51.82787-15/589190885_18429984637128265_1747979437943685471_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=107&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=UraCOrZvr7cQ7kNvwFGJ0xM&_nc_oc=Adn0eRPqJGKMlf4x_jse4NtEpOPqabHZ90l5UVkVfP2BDal0dLbGYcCqfQ_jwW3cfYs&_nc_zt=23&_nc_ht=scontent-lhr8-1.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AftxKdiaO0ggQHWV0oI8jo7i_E4_HsZ0gHuZYTO8Qo02zA&oe=6985A991)
![Tiny galaxies, grown - not mined. Synthetic Opals let us enjoy vibrant color play with consistency, sustainability, and pure aesthetic beauty.
#syntheticopal #opal #opalshop
[labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr6-1.cdninstagram.com/v/t51.71878-15/588737888_1423930602660414_4887090457263996547_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=110&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiQ0xJUFMuYmVzdF9pbWFnZV91cmxnZW4uQzMifQ%3D%3D&_nc_ohc=g4ZBBjefHsAQ7kNvwHWL7gW&_nc_oc=Adn0wFXnKOzBh0SBnxj8ZgPx7GlxJD9effQ17Ajh18YxAi-20jCtrayRBLU5h4ja0d0&_nc_zt=23&_nc_ht=scontent-lhr6-1.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AfuwCAelPDBuTIzSi8kI3JnL-kByaT04E6KSaX2OuUom1w&oe=6985963B)
![These rubies carry natural-style inclusions formed inside the crystal during the high-temperature HDSM process, giving each stone its own fingerprint - a trait collectors love because it feels truly alive.
• SHAPE: CUSHION & PEAR
• SIZE: 15.5x15.5 & 14x10
• WEIGHT: 18.15 & 15.83 (Pair) CTS
📩 Got any enquiries or need more information?
Reach out to us right away @rgcrystals
🔗 Click the link in the bio to know more about us & our production 💠
📞 +662-267-4920
📧 sales@rgcrystals.com
🌐 www.rgcrystals.com
#labgrowngemstones #labgrownruby #rubies
[labgrown, labgrown diamonds, labgrown gemstones, jewelry, jewelers, jewelry designers, eco friendly, labgrown rough, eco friendly gemstones, conflict free, conflict free gemstones, online store, gem shop lab grown gem shop, gem shopping, rough stones]](https://scontent-lhr8-2.cdninstagram.com/v/t51.82787-15/589246662_18429355474128265_6000277716948182252_n.jpg?stp=dst-jpg_e35_tt6&_nc_cat=106&ccb=7-5&_nc_sid=18de74&efg=eyJlZmdfdGFnIjoiRkVFRC5iZXN0X2ltYWdlX3VybGdlbi5DMyJ9&_nc_ohc=cV8dUhNF8boQ7kNvwGdFKId&_nc_oc=AdlF8960KRLFYuAQ0PRD103HhlLn_K4hzDq9CkGy82tVDfvvkQ9wxZl9DuJaNWMDdOo&_nc_zt=23&_nc_ht=scontent-lhr8-2.cdninstagram.com&edm=ANo9K5cEAAAA&_nc_gid=zmwPeUwkAOmpu-KF6O8aPA&oh=00_AfvZbE8006crWKiEEZVRkkFnxfZaHYgFxacJcohakFg7Xg&oe=6985AE6B)






























