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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›Emeralds supplied by Raphael Duarte Costa are Grade A stones sourced from Brazilian mines, characterized by natural coloration and minimal inclusions. Each gem is untreated, preserving its original optical properties, with typical dimensions ranging from 2.5 mm to 8 mm in diameter and cuts including oval, emerald, and round. The stones exhibit medium to dark green tones with moderate saturation, consistent with the standard for Brazilian emeralds in commercial jewelry supply.
These emeralds are classified under the GIA system as Grade A, indicating a clarity level with slight inclusions visible under 10x magnification but not to the naked eye. The material is not enhanced by oiling or resin, and surface fractures remain untreated. Standard packaging is in padded foam-lined boxes with individual compartments, designed to prevent scratching during transit. The origin from Brazil is significant, as Brazilian emeralds are known for their lower iron content compared to Colombian stones, resulting in a slightly cooler green hue.
Buyers include jewelry manufacturers in Europe and North America who require consistent supply for mid-to-high-end collections. The stones are commonly set in gold or platinum rings, pendants, and earrings. Trade terms are typically FOB Santos or CIF port of destination, with minimum order quantities negotiable per batch. Buyers should request batch-specific certification and verify the absence of fracture filling before final payment.
| Grade | A |
| Origin | Brazil |
| Treatment | Untreated |
| Typical Carat Range | 0.5 ct to 5 ct |
| Typical Cut | Oval, emerald cut, round |
| Color Saturation | Medium to dark green, moderate tone |
| Inclusion Level | Slight, visible under 10x magnification |
| Typical Dimensions | 2.5 mm to 8 mm diameter |
| Certification | Independent laboratory report provided per stone |
| Typical Packaging | Foam-lined individual compartments in rigid box |
Raphael Duarte Costa operates as an imported gemstone supplier based in Brazil, with no public profile beyond the listing. The supplier is verified through harbor trust tier, indicating compliance with basic export documentation and customs clearance. There is no information on mine ownership, processing facilities, or years in operation. Response rate and average response time are not recorded, suggesting limited buyer communication capability.
The supplier does not claim certifications, revenue, staff size, or client names. The listing reflects a direct sourcing role from Brazilian mines, with no indication of refining, cutting, or in-house grading. Buyers should treat this as a raw material conduit, not a finished goods manufacturer. Due diligence on origin traceability and treatment status is recommended before order confirmation.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Before ordering, verify the treatment status with a lab report from a recognized institution like GIA or SSEF. Confirm that the emeralds are untreated and that the certificate includes color, clarity, weight, and cut details. Request batch photos under natural light and compare against the supplier's description. Avoid accepting generic certificates that lack measurable data or lab seals.
Logistics are typically handled via FOB Santos or CIF destination port. Lead time is not stated but usually ranges from 10 to 21 days after payment. Buyers should confirm Incoterms in writing and clarify whether insurance is included. Payment terms are commonly T/T in advance or L/C at sight. Ensure the supplier provides a commercial invoice matching the certificate and packing list.
Perform a visual inspection under 10x magnification for fractures, surface polish, and color consistency. Use a refractometer to check the refractive index (1.565 - 1.590) and a spectroscope to confirm the chromium absorption lines. Request a sample batch before large shipment. Documentation must include origin declaration, treatment statement, and weight verification signed by the supplier.
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Securing a reliable supply chain for Emerald is critical for maintaining your business operations. Raphael Duarte Costa, a verified supplier located in Brazil, provides high-quality Emerald ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Emerald Gemstones (Panna) industry, catering to distributors, wholesalers, and importers worldwide.
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Emerald from Brazil, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Raphael Duarte Costa. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
We understand that verifying supplier credentials is a top priority for importers. Raphael Duarte Costa is part of our extensive network of vetted international exporters. Browse more products in the Emerald Gemstones (Panna) category or discover new suppliers across the Emerald Gemstones (Panna) sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
When importing Emerald from Brazil, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Click the "Request Quotation" button to contact Raphael Duarte Costa directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Yes, Raphael Duarte Costa provides Emerald for bulk export from Brazil. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Raphael Duarte Costa. Contact the supplier to discuss the best logistics options for importing Emerald to your country.
Send a direct message to Raphael Duarte Costa through our platform to request a product sample before committing to a large wholesale order.
Raphael Duarte Costa is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Raphael Duarte Costa.
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