Lab-Grown Diamond Supplier China | Wholesale B2B India Manufacturer

✦ Market Intelligence & Consumer Trends ✦

Understanding China Customer Preferences

The fine jewellery landscape in China is experiencing sustained growth. Here is what Chinese consumers and bridal shoppers are actively seeking — and how jewellers can maximize profitability.

Preference #1

Substantial Carat Upgrades in China

Modern Chinese bridal couples are opting for impressive 1.50ct to 3.50ct+ solitaire engagement centerpieces. Lab-grown diamonds allow consumers to maximize visual scale within their CNY (¥) wedding budget.

Preference #2

Strict D–F Colour & VVS/VS Clarity

Educated Chinese shoppers prioritize immaculate optical brilliance. Our Surat Type IIa CVD diamonds are cultivated with zero trace nitrogen, guaranteeing icy D, E, and F color grades with eye-clean VVS to VS clarity.

Preference #3

Fancy Shapes: Oval, Radiant & Emerald

Alongside the classic 58-facet Round Brilliant, bridal boutiques across China report massive demand for elongated Oval, radiant-cut, and elegant Emerald step-cut solitaires.

Preference #4

Ethical Provenance & Sustainability

Chinese consumers increasingly demand conflict-free origin, low environmental footprint, and transparent modern growth verified by reputable laboratory standards.

Preference #5

Independent IGI & GIA Certification

Retail shoppers in China insist on authentic laboratory grading reports from IGI or GIA featuring indelible laser inscriptions on the diamond girdle matching the certificate.

Preference #6

Superior Gross Margins for Chinese Jewellers

By buying directly from our Surat cutting works, jewellers in China bypass regional wholesale middlemen and protect 45%–60%+ retail gross margins.

✦ Direct Distribution Network ✦

Supplying Lab-Grown Diamonds Across China

From renowned jewellery districts to bespoke ateliers across China, we provide rapid, fully insured diamond shipments directly to your city workshop or showroom.

GUANGDONG Shuibei Diamond Market

Shenzhen

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Shenzhen with certified loose solitaires and calibrated melee parcels.

Top Focus: Jewellery Manufacturing Melee Parcels (+000 to +14), Mass-Production CVD Lots.

EAST CHINA Diamond Exchange & Huaihai Rd

Shanghai

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Shanghai with certified loose solitaires and calibrated melee parcels.

Top Focus: Lujiazui Diamond Exchange Solitaires, 2ct–5ct CVD Bridal Diamonds, Trade Parcels.

SOUTH CHINA Panyu Manufacturing Hub

Guangzhou

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Guangzhou with certified loose solitaires and calibrated melee parcels.

Top Focus: Export Manufacturer Solitaires, Calibrated DEF VVS Melee, Trade Show Stock.

NORTH CHINA Wangfujing & Guomao CBD

Beijing

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Beijing with certified loose solitaires and calibrated melee parcels.

Top Focus: Wangfujing Premium Bridal Solitaires, Luxury Fancy Cuts, High-Carat Stones.

ZHEJIANG Wulin Luxury District

Hangzhou

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Hangzhou with certified loose solitaires and calibrated melee parcels.

Top Focus: Certified 1.5ct–4ct Solitaires, Matched Pairs, Precision Melee Lots.

WEST CHINA IFS & Taikoo Li Luxury Hub

Chengdu

Supplying independent retail jewellers, bespoke designers, and workshop goldsmiths across Chengdu with certified loose solitaires and calibrated melee parcels.

Top Focus: Growing Middle-Class Bridal Solitaires, 1.5ct–3ct Round Brilliants, Melee.

Also delivering fully insured consignments to all regional postal zones throughout China. Check Transit Time to Your City in China

✦ B2B Trade Supply ✦

Wholesale Lab-Grown Diamonds for China Jewellers

Whether you are an established retail brand, an independent goldsmith studio, or a bespoke bridal designer in China, New Origin Diamonds provides tailored B2B supply agreements designed around your bench requirements.

We supply individual certified solitaires on demand and bulk calibrated sieve parcels, allowing you to streamline your supply chain and source directly from the master cutters in Surat, India.

No Solitaire MOQ Calibrated Melee Sieve Lots Matched Pairs for Earrings Fancy Coloured Solitaires

China Trade Sourcing Options

Individual Certified Solitaires: Choose exact IGI or GIA certified stones from 0.50ct up to 15.00ct+ with 360-degree HD video scans and exact measurements.

Calibrated Melee Parcels: Precision-sieved rounds from 0.80mm to 3.50mm (+000 to +14 sieve sizes) in D-F VVS/VS grades for micro-pavé, halo settings, and eternity bands.

Matched Layouts & Pairs: Hand-curated pairs matched for diameter, crown angle, table percentage, colour, and lustre for luxury earrings and three-stone rings.

Fancy-Colour Diamonds: Rare lab-grown fancy pink, canary yellow, royal blue, and green stones for distinctive designer collections.

✦ Inventory Categories ✦

Our Diamond Collection for China

Explore our core product categories supplied directly to Chinese retailers, manufacturers, and bespoke designers.

Certified Loose Solitaires (0.50ct – 15.00ct+)

IGI & GIA Graded CVD & HPHT Type IIa

Every solitaire diamond is graded by independent gemological laboratories (primarily IGI or GIA). Each stone carries an indelible girdle laser inscription verifying its colour, clarity, carat weight, and cut symmetry. Available in popular carat benchmarks including 1 carat, 2 carat, 3 carat, and rare larger carat sizes (4ct–15ct+).

Color: D – H Clarity: VVS1 – SI1 Cut: Ideal / Hearts & Arrows

Full Range of Diamond Shapes

Precision Faceted in Surat

We manufacture all classical and fancy cuts favored by fine jewellery ateliers in China:

Calibrated Melee & Pavé Parcels

Exact Sieve Fractions for Bench Jewellers

Bench jewellers require exact millimeter consistency for seamless setting. We supply round brilliant melee from 0.80mm to 3.50mm (+000 to +14 sieve sizes) in strictly sorted colour (DEF) and clarity (VVS-VS). Ideal for eternity bands, halo rings, tennis necklaces, and luxury watches.

DEF / VVS-VS Lots Consistent Heights & Girdles Zero Fluorescence

Fancy-Colour Lab-Grown Diamonds

Vibrant Shades for Bespoke Designers

Differentiate your showroom in China with breathtaking fancy coloured lab-grown diamonds: Fancy Vivid Pink, Canary Yellow, Royal Blue, and Emerald Green. Available as certified solitaires or matched pairs.

Fancy Intense / Vivid Shades No Surface Coatings

✦ Independent Authentication ✦

Diamond Certification & Quality Verification

We believe in complete transparency. Every solitaire diamond we supply to China is accompanied by an authentic physical and digital grading report from premier independent gemological institutes.

IGI & GIA Grading Reports: Complete documentation of the 4Cs (Carat, Cut, Colour, Clarity), optical proportions, polish, and symmetry.

Laser Inscription Verification: Every certified stone features a microscopic laser inscription on the girdle matching the grading report number, easily verifiable with a standard 20x loupe.

Type IIa Purity Confirmation: Certified Type IIa diamonds have zero measurable nitrogen impurities, matching the crystal purity of the rarest 1–2% of natural diamonds.

Trade Note: Solitaire diamonds (0.50ct+) carry individual laboratory certificates. Calibrated melee diamonds (<0.30ct) are supplied in sieved parcels with batch quality and purity guarantees.

IGI Certified

Antwerp / Mumbai / Surat Global Industry Standard

GIA Certified

Gemological Institute of America Available on Demand

What Each Report Documents:

✔ Growth Process (CVD or HPHT)
✔ Exact Carat Weight & Dimensions (mm)
✔ Colour & Clarity Grades
✔ Cut, Polish & Symmetry Evaluations
✔ Laser Girdle Inscription Registry ID

✦ The Manufacturing Advantage ✦

Why China Jewellers Source from Surat, India

Surat, Gujarat is the undisputed diamond capital of the world, cutting and polishing over 90% of the globe's diamonds. Sourcing directly from our Surat factory gives your Chinese business unmatched commercial advantages.

Eliminate Middlemen Markups

Bypass regional trade distributors, domestic trading desks, and broker commissions. Direct origin sourcing protects your gross margin.

Plasma CVD Technology

Our plasma growth chambers produce pure Type IIa rough diamonds, ensuring zero milky graining, no unnatural undertones, and maximum fire.

Master Lapidary Precision

Surat's multi-generational diamond cutters polish every facet to exact mathematical angles, ensuring Hearts & Arrows optical brilliance.

Dedicated B2B Trade Desk

Direct communication via WhatsApp or email with your dedicated diamond specialist for stone matching, custom layout sourcing, and live inventory.

✦ Secure Logistics ✦

Shipping Diamonds to China

We routinely ship high-value diamond consignments to retail jewellers, trade workshops, and designers across China. Every shipment is handled with utmost security and 100% door-to-door insurance.

Courier Carriers: Dispatched via SF International / FedEx Express / Armoured Cargo with tamper-evident secure packaging.

Transit Time: Estimated 4–6 Business Days from Surat dispatch to your business address.

100% Door-to-Door Insurance: Consignments are fully insured until signed for at your registered commercial delivery address.

Full Electronic Tracking: Complete end-to-end Air Waybill tracking sent immediately upon dispatch with real-time status updates.

What's Included in Your Consignment:

Sealed tamper-evident diamond cassette packaging
Original IGI / GIA gemological grading certificates
Official Commercial Invoice with itemised HS classification codes
Comprehensive Packing List with individual stone carat weights
Export Declaration & Air Waybill documentation

Speak to our China Logistics Coordinator

✦ Regulatory Guidance ✦

China Import Duties & Customs Considerations

A factual, practical overview for Chinese jewellery businesses importing loose lab-grown diamonds into China.

Commodity Code

HS Chapter 7104

Loose unmounted synthetic diamonds are classified globally under HS Code 7104.91 / 7104.99 (Synthetic or reconstructed precious stones). We provide correct commodity classification codes on all shipping paperwork.

Customs Duty

0%–3% Most-Favored-Nation Tariff (HS 7104)

Loose synthetic diamonds enter China under HS code 7104.91 / 7104.99 with GACC customs clearance and 13% VAT. Commercial invoices and diamond certificates are fully declared.

Tax / VAT Treatment

13% Value Added Tax (VAT)

Invoicing and tax declarations conform to General Administration of Customs of China (GACC) regulations, allowing eligible registered businesses to reclaim or offset value added taxes.

Official Customs Authority Reference

For complete official information on tariffs and import declarations in China, please refer to General Administration of Customs of China (GACC):

General Administration of Customs of China (GACC) Official Guidance Disclaimer: Tax and duty liabilities remain the legal responsibility of the importing party. Buyers should confirm specific requirements with their local customs broker.

✦ Simple 4-Step Process ✦

How China Jewellers Can Order

A straightforward, transparent purchasing workflow designed for jewellery professionals.

1

Share Specifications

Submit your requested shape, carat weight, colour, clarity, certificate (IGI/GIA), or melee sieve sizes via our enquiry form or WhatsApp.

2

Review Quote & 360° Video

Receive a direct factory quotation along with HD 360-degree video inspection links, certificate copies, and exact millimeter dimensions.

3

Confirm Order & Invoice

Approve the commercial pro-forma invoice. Settle securely via international bank wire transfer (SWIFT) or agreed B2B trade payment terms.

4

Insured Delivery

Your diamonds are packed in tamper-evident cassettes, cleared for export, and delivered to your China premises in 4–6 Business Days.

✦ Got Questions? ✦

Frequently Asked Questions for China Jewellers

Key questions answered regarding sourcing lab-grown diamonds directly from India for the Chinese jewellery trade.

Yes. We supply retail jewellers, custom bench designers, diamond dealers, and manufacturing houses across China directly from our Surat factory with fully insured logistics.

We produce Round Brilliant, Oval, Emerald, Radiant, Cushion, Pear, Princess, Marquise, and Asscher cuts from 0.50ct up to 15.00ct+, along with calibrated round melee from 0.80mm to 3.50mm.

Yes. All solitaire diamonds are accompanied by independent grading reports from IGI or GIA, complete with matching micro-laser inscriptions on the girdle.

Under HS Code 7104, 0%–3% Most-Favored-Nation Tariff (HS 7104) generally applies. Applicable local taxes such as 13% Value Added Tax (VAT) are handled in accordance with General Administration of Customs of China (GACC) guidelines. Commercial invoices and full documentation are provided.

Consignments are dispatched via SF International / FedEx Express / Armoured Cargo with 100% door-to-door insurance. Estimated transit time to China is 4–6 Business Days.

Yes. We supply precision-sieved melee parcels sorted from 0.80mm to 3.50mm (+000 to +14 sieve sizes) in DEF color and VVS-VS clarity.

Absolutely. For every certified solitaire diamond, our B2B trade desk provides high-definition 360-degree video scans, certificate PDFs, and exact millimeter dimensions.

Click 'Request Wholesale Quote' on this page, or connect with our international trade desk via WhatsApp at +91 85308 58583. Share your stone specifications to receive a tailored quotation.

✦ Direct Factory Trade Partnership ✦

Partner With India's Leading Lab-Grown Diamond Manufacturer

Enhance your margins, expand your certified loose diamond inventory, and deliver exceptional value to your clients in China.

WhatsApp Trade Representative Global Wholesale Page

Save Up To 70%

Fancy Color Labs

Save Up To 75%

100% Inscribed

New Origin Diamonds

Diamond Cuts

Diamond Colors

By Carats

Diamond Certification

Lab-Grown Diamond Supplier in China — Direct Factory Supply From India's Diamond Capital.

China Trade Supply

Shenzhen Manufacturers & Retail Brands

0.50ct to 15.00ct+

0.8mm – 3.5mm (+000 to +14)

4–6 Business Days