LAB-GROWN DIAMOND PRICES IN B2B
Lab-Grown Diamond Prices in B2B: 2025 Guide & Comparison
The lab-grown diamond market is booming, and more and more jewelers are paying attention. But a key question remains: how much does a lab-grown diamond cost in B2B, and what factors influence its price?
n this comprehensive guide, we break down the key elements that determine pricing and how to optimise your sourcing to maximise profitability.
1. Key Factors Influencing the Price of Lab-Grown Diamonds
Carat Weight :
As with natural diamonds, carat weight (ct) is one of the main price drivers. The larger the diamond, the rarer and more expensive it becomes. However, unlike natural diamonds, lab-grown stones offer more stable availability.
Manufacturing Method, HPHT vs CVD
Lab diamonds are created through two main processes: HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Deposition).
HPHT diamonds are typically more affordable but may require post-growth treatments.
CVD diamonds often offer better optical quality but come at a slightly higher cost.
Colour and Clarity :
Price varies based on colour grade (D to Z) and clarity (FL to I3). Stones that are more colourless and inclusion-free are rarer and more expensive.
Certification (IGI, GIA, HRD)
Diamonds certified by IGI, GIA, or HRD may cost more than uncertified stones, but they offer verified quality and better resale value.
Market Fluctuations
Supply and demand also play a role, especially with new regulations and the growing adoption of lab-grown diamonds in high jewellery.
2. Lab-Grown Diamond B2B Price Comparison
The prices below are highly competitive and based on our Geminove platform, Geminovewhich offers optimised B2B pricing thanks to our trusted supplier network. (Prices listed for Round diamonds, Colour G, Clarity VS1, Cut EX)
| Carat (ct) | HPHT Price (€) | CVD Price (€) |
|---|---|---|
| 0.50 ct | 120 – 160 | 140 – 170 |
| 1.00 ct | 195 – 230 | 200 – 230 |
| 1.50 ct | 250 – 280 | 260 – 290 |
| 2.00 ct | 330 – 390 | 330 – 400 |
3. How to Optimise Your B2B Lab Diamond Purchases
Compare certifications : An IGI diamond may offer similar specs to a GIA diamond at a lower price.
Prioritise popular sizes : Some sizes (like 1ct or 1.5ct) are in higher demand and offer better resale margins.
Follow market trends : Consumer demand can impact pricing, particularly for the most requested sizes and colours.
What Budget Should You Plan for B2B Lab-Grown Diamonds?
The price of lab-grown diamonds depends on multiple factors: carat weight, quality, certification, and production method.. To optimise your profitability, it’s crucial to compare offers carefully and rely on trusted partners like Geminove.
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