Redleaf Jewelry - Professional Lab Grown Diamond Jewelry Manufacturers & Lab Grown Diamond Factory

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 1

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 2

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 3

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 4

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 5

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 6

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 7

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale 8

IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale

This lab-grown synthetic diamond, model HEART, originates from Guangxi, China. It features a romantic heart cut, comes in top-tier color grades D/E/F (colorless), and is certified by the authoritative IGI. Ideal for premium jewelry making.

Diamond Type：Synthetic (lab grown)
White Diamond Color：D、E、F
Diamond Shape：Heart Cut
Certificate Type：IGI

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1,50,100,1000

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IGI Certified Ethical Hearts

Achieve brilliant, ethical luxury at wholesale value with IGI-certified lab-grown heart-cut diamonds (1–3 ct) offering D–F color and VS–VVS clarity for show-stopping sparkle without the premium of mined stones. Each loose LGD, grown by HPHT or CVD methods and precisely shaped into a romantic heart cut, delivers consistent light performance and ideal proportions for settings from pendants to engagement rings. Diamonds ship with IGI reports in secure gem cases, offer customization and fast delivery, and give jewelers and buyers reliable quality control for confident mounting and resale.

IGI Labgrown Heart Diamond

IGI-certified lab-grown heart-cut diamonds (1–3 ct) feature D–F color and VS–VVS clarity, produced by HPHT and CVD methods and offered as loose LGD stones for wholesale sourcing. Their precision heart faceting and true diamond crystal structure deliver outstanding brilliance, fire, symmetry, and the same hardness and longevity as mined diamonds, making them ideal center stones for engagement and designer jewelry. Ethically produced and cost-efficient compared with mined counterparts, they provide certified, traceable inventory that meets sustainability and quality expectations for retailers and makers.

IGI Certified Lab-Grown Diamonds

IGI-certified lab-grown heart-cut diamonds in the D–F color range with VS to VVS clarity deliver exceptional brilliance and precise symmetry. Offered as loose LGDs weighing 1–3 carats and produced by HPHT or CVD methods, each stone meets stringent grading standards. Perfect for custom jewelry or wholesale buyers seeking high-quality, colorless lab-grown diamonds with reliable certification.

◎ BRILLIANT HEART CUT

◎ IMPECCABLE COLOR CLARITY

◎ PREMIUM WHOLESALE SUPPLY

Material introduction

This IGI-certified heart cut loose diamond is lab-grown using HPHT and CVD techniques, producing pure carbon crystals that are chemically and optically equivalent to natural diamonds. Graded D–F for color and VS–VVS for clarity, the stones deliver exceptional material purity and brilliance across 1–3 carat weights. Supplied wholesale as loose LGD, each piece carries traceable grading from IGI to ensure consistent material quality and predictable performance in finished jewelry.

Certified Brilliance, Ethical Value

Crafted under IGI certification using both HPHT and CVD methods, this Heart Cut lab-grown diamond delivers D–F color and VS–VVS clarity in the sought-after 1–3 ct range while reflecting the brand’s focus on ethical, precision gemology. As a loose wholesale gem for jewelers and buyers, it provides remarkable brilliance, precise symmetry for superior light performance, and full traceability to support sustainable, conflict-free sourcing. Key features and advantages include heart-shaped precision cutting, IGI certification, D–F color grades, VS–VVS clarity, 1–3 ct availability, plus the cost-effectiveness, consistent quality, and lower environmental impact of lab-grown production.

FAQ

What exactly is an "IGI Certified Lab Grown Diamond Heart Cut D~F VS VVS HPHT CVD 1-3 CT Loose LGD Loose Diamond Wholesale"?

This describes a laboratory-grown (LGD) loose diamond certified by the IGI (International Gemological Institute). Key points: heart cut (fancy shape), color range D–F (colorless), clarity grades VS–VVS (very slightly to very, very slightly included), weight between 1.00 and 3.00 carats, and produced by either HPHT or CVD growth methods. "Loose" means the diamond is unset, and "wholesale" indicates pricing/quantities intended for trade or bulk buyers. The IGI report documents the stone’s measurements, proportions, color, clarity, and any treatments or inscriptions.

What are the most common uses and application scenarios for a heart cut 1–3 ct LGD?

Typical uses include engagement rings (center stone for a romantic look), solitaire or halo pendants, single-stone or paired drop earrings, anniversary or statement rings, and custom designer pieces. Retailers and designers also use loose LGDs to create bespoke jewelry where customers choose the exact stone, setting, and metal. Heart cuts shine best when mounted with protective prongs (especially at the cleft and point) or in a halo to emphasize shape and size.

How do HPHT and CVD growth methods affect appearance, durability, and value?

Both HPHT and CVD produce gem-quality diamonds that are optically and physically the same as natural diamonds. Visually—especially when graded D–F and VS–VVS—there is no practical difference to the naked eye. Differences can include how color or clarity treatments are applied and how inclusions appear under magnification; IGI reports will note growth method and treatments. Durability and wear are the same as natural diamond, so the choice mainly affects origin disclosure and sometimes price or traceability.

How should I verify the IGI certification and what details should I check before buying?

Ask for a clear copy of the IGI report and confirm the report number. Verify details such as carat weight, color grade (D–F), clarity (VS–VVS), cut/shape (heart), measurements, proportions, fluorescence, and any plotted inclusions or comments about treatments. If available, check for a laser inscription on the girdle that matches the report number. You can also verify the certificate on the IGI website or request a high-resolution image of the diamond for visual confirmation.

What are the best care and maintenance practices for a heart-cut LGD and its setting?

Regularly inspect prongs—especially the cleft and point of the heart—for security and have a jeweler tighten them if needed. Clean with warm water, mild soap, and a soft brush; ultrasonic cleaners are usually safe but confirm there are no linked treatments or fragile settings before use. Avoid harsh chemicals and rough impacts; store loose diamonds separately to avoid scratching other gems. For valuable stones, get an appraisal, insure the piece, and keep the IGI certificate in a safe place.

As a jeweler or reseller, what should I consider when buying wholesale loose LGDs in this specification?

Consider minimum order quantities, inventory needs, pricing tiers, and consistency across lots (color/clarity matching for pairs). Verify each stone’s IGI report and request laser inscriptions when possible for easier tracking. Ask about return, warranty, and grading-mismatch policies. Plan for quality control (inspect with loupe/microscope), photo documentation for listings, and clear disclosure of “lab-grown” on sales materials and invoices to meet transparency and legal requirements. Finally, consider demand for heart shapes (more novelty/romantic market) and stock sizes that match your clientele’s preferences.

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