Certified Gemstones
Explore certified gemstones at Imperial Gemstone, featuring selected stones with reports from internationally recognized laboratories such as GIA, GRS, IGI, and AIGS, alongside reputable regional gemological laboratories.
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5.40 Carats AIG Certified Natural Rhodolite Garnet Octagon Cut Gemstone
Original price was: $470.00.$430.00Current price is: $430.00.
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5.70 Carats AIG Certified Natural Rhodolite Garnet Octagon Cut Gemstone
Original price was: $330.00.$270.00Current price is: $270.00.
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4.47 Carats AIG Certified Natural Malaya Garnet Oval Faceted Gemstone
Original price was: $410.00.$330.00Current price is: $330.00.
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6.43 Carats AIG Certified Natural Malaya Garnet Oval Faceted Gemstone
Original price was: $870.00.$730.00Current price is: $730.00.
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4.88 Carat Certified Natural Rhodolite Garnet Oval Cut VS1 from Tanzania
Original price was: $370.00.$330.00Current price is: $330.00.
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4.79 Carat Certified Natural Almandine Garnet Oval Cut VS1 from Tanzania
Original price was: $250.00.$210.00Current price is: $210.00.
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5.07 Carat Certified Natural Rhodolite Garnet Cushion Cut VS1 from Tanzania
Original price was: $410.00.$370.00Current price is: $370.00.
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3.99 Carat Certified Natural Malaya Garnet Octagon Cut VS1 from Tanzania
Original price was: $270.00.$240.00Current price is: $240.00.
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4.62 Carats Certified Natural Rhodolite Garnet Pear Shape VS1 from Tanzania
Original price was: $350.00.$310.00Current price is: $310.00.
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6.47 Carats Certified Natural Rhodolite Garnet Oval Cut VS1 from Tanzania
Original price was: $500.00.$440.00Current price is: $440.00.
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5.08 Carats Certified Natural Rhodolite Garnet Oval Cut VS1 from Tanzania
Original price was: $500.00.$430.00Current price is: $430.00.
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4.36 Carats Certified Natural Rhodolite Garnet Oval Cut VS1 from Tanzania
Original price was: $410.00.$360.00Current price is: $360.00.
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5.44 Carats Certified Natural Malaya Garnet Cushion Cut VS2 from Tanzania
Original price was: $380.00.$350.00Current price is: $350.00.
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4.45 Carats AIG Certified Natural Vivid Red Garnet (Almandine) Gemstone
Original price was: $170.00.$130.00Current price is: $130.00.
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4.75 Carats AIG Certified Natural Rhodolite Garnet Cushion Cut Gemstone
Original price was: $210.00.$170.00Current price is: $170.00.Shop Certified Gemstone Online
Explore our curated selection of fine authenticated pieces online at Imperial Gemstone, featuring a premier collection of precious and semi-precious stones accompanied by official gemological documents or laboratory assessments. Discover a diverse range of genuine mineral families and review individual product descriptions online to make an informed choice for your private collection, custom fine jewelry designs, or meaningful gifts.
Whether you are seeking rare collectors' items or sourcing verified material for a bespoke jewelry project, evaluating stones with independent laboratory backing ensures complete confidence in your purchase.
Explore Certified Gemstone by Variety
Certified Ruby
Discover authenticated selections from our Ruby collection online, admired for their rich red color and timeless appeal. Individual loose stones can differ in color saturation, clarity, cut, and other mineral characteristics, so we invite you to review the available technical specifications and grading documentation for each individual piece.
Certified Sapphire
Explore pristine selections from our Sapphire inventory online in a spectacular variety of colors, including classic blue, yellow, vibrant pink, and clean white. Compare individual stones side by side by examining their visual appearance, millimeter measurements, and available laboratory reports.
Certified Emerald
Discover premium pieces from our Emerald vaults online, valued globally for their distinctive, vivid green color. The specific color tones, clarity levels, cut styles, and enhancement information stated in the applicable lab report can help you accurately understand the unique characteristics of each stone.
Certified Garnet
Explore verified options from our Garnet family online, a remarkably diverse mineral group showcasing a wide range of colors and unique varieties. Review the individual product details and available certification paperwork to compare these beautiful pieces according to your personal preferences.
Certified Spinel
Discover pristine specimens from our Spinel group online in highly sought-after colors such as vibrant red, pastel pink, and deep blue. Their varied appearance and high brilliance offer exceptional options for private collectors and distinctive, high-end jewelry designs.
Certified Tourmaline
Explore beautiful choices from our Tourmaline range online, renowned in the gem world for their broad range of colors, from soft pink and rich green to other distinctive bi-color shades. Review each unique stone’s physical measurements and available laboratory documentation.
Certified Amethyst
Discover radiant selections from our Amethyst catalog online, globally recognized for their royal purple hues, ranging from light lavender to deeper, velvety purple tones. Easily compare the color depth and individual characteristics of available stones currently in stock.
Certified Topaz
Explore verified pieces from our Topaz collection online across a versatile range of colors and structural appearances. Check each individual product listing for its detailed weight specifications and verified laboratory certification details.
Certified Aquamarine
Discover elegant choices from our Aquamarine stock online, widely admired for their refreshing blue to blue-green hues. Evaluating color saturation, transparency, cut proportions, and individual specifications can help guide your choice toward the perfect gem.
Certified Citrine
Explore beautiful variants from our Citrine lineup online, deeply appreciated for their warm yellow to radiant golden-orange tones. Review the exact measurements and available documentation of each individual stone before placing your order.
Certified Peridot
Discover vibrant choices from our Peridot collection online, famously known for their distinctive olive-green appearance and excellent suitability for a wide variety of contemporary jewelry styles.
Certified Opal
Explore striking specimens from our Opal inventory online, valued for their incredibly distinctive appearance. Some premium varieties display unique, colorful flashes known as play-of-color, meaning individual loose stones can differ considerably from one another.
Certified Tanzanite
Discover rare varieties from our Tanzanite selection online, admired for their unique and captivating trichroic blue to violet hues. Review individual carat weights, measurements, and any relevant enhancement information stated in the accompanying report.
Certified Zircon
Explore brilliant choices from our Zircon category online, known for their exceptional brilliance, high fire, and availability in several colors. Natural zircon is distinct from cubic zirconia, which is a completely different, man-made material.
Certified Sphene
Discover rare selections from our Sphene collection online, celebrated for their exceptional optical dispersion, remarkable fire, and striking yellowish-green to deep bronze hues. Review the detailed dimensions, carat weights, and individual laboratory diagnostics listed on each product page to choose a verified specimen that enhances your custom jewelry designs or private gemstone collection.
Gemological Laboratories and Reports
Independent gemological institutions examine stones under advanced instrumentation and issue official reports according to the type and scope of examination performed. When purchasing certified gemstones, recognized international organizations include GIA, GRS, IGI, AGL, Gübelin Gem Lab, SSEF, and AIGS, alongside reputable regional gemological laboratories.
Depending on the test requested, these reports document gemstone identity, exact carat weight, dimensions, natural treatment findings, or geographic origin conclusions where assessed. The specific information provided varies by laboratory and report type, so online buyers should carefully review the documentation supplied with each individual stone.
Choosing the Right Certified Gemstone
When comparing stones online, it is important to consider color, cut style, clarity, transparency, carat weight, intended setting use, and budget. Reviewing the product specifications alongside the available laboratory report helps you understand exactly which natural characteristics have been officially documented.
Any enhancement or treatment information should be understood according to what is explicitly stated in the applicable report. Independent certification supports an informed decision, providing an objective record of a gemstone's documented attributes.
Why Choose Imperial Gemstone?
Imperial Gemstone offers an authentic selection of stones across a wide range of mineral families, with clear verification information available for all our certified gemstone. We aim to provide highly detailed product specifications and clear documentation files to help buyers compare individual gemstones with greater confidence online.
As our international collection expands, additional options will become available. We always encourage customers to review the relevant product listings for the specific stone’s unique characteristics and accompanying certificate or laboratory report.
Worldwide Shopping and Shipping
Imperial Gemstone warmly welcomes buyers searching for premium certified gemstone from the USA, UK, Europe, and other destinations worldwide. Review the available product information, laboratory certification details, and tailored international shipping options applicable to your destination before ordering online.
Explore our collection today to find exceptional choices for personal investment collections, meaningful gifts, and distinctive jewelry designs.
Frequently Asked Questions
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- What are certified gemstone?
These are natural gems independently analyzed by an accredited gemological laboratory. The accompanying official report verifies the stone's identity, exact carat weight, millimeter dimensions, and natural characteristics. - Which gemological laboratories issue the reports?
Our items are paired with certificates from leading international and regional institutions. Depending on the individual stone, these include recognized names like GIA, GRS, IGI, AGL, Gübelin, SSEF, and AIGS. - Are all certified gemstone completely untreated?
The laboratory report documents the exact state of the stone. It explicitly states whether a gem is completely unenhanced or if it has undergone standard industry enhancements, such as traditional heat treatment. - Can these authenticated loose stones be used for jewelry?
Yes. Designers frequently select our authenticated loose stones for bespoke settings. Reviewing the exact millimeter dimensions on the listing ensures your jeweler can perfectly plan a ring, pendant, or earring design. - Do you ship high-value stones internationally?
Yes. Imperial Gemstone securely fulfills and ships global orders to buyers in the USA, UK, Europe, and worldwide. Every premium shipment is fully tracked via premium courier networks for safe door-to-door transit.
- What are certified gemstone?