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3.71ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG626426185

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626426185

Diamond specifications and retailer prices

From £1,089 GBP
CA$2,026 CAD
As of October 30, 2026
Save £351 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,440 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.71ct lab-grown round diamond

This 3.71ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG626426185 or 626426185. Listed at 2 retailers as of October 30, 2026, with prices from £1,089 to £1,440, a £351 spread on the same certified stone. The Diamond Guys lists it at £1,440. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.71
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626426185
Dimensions10.06 × 10.00 × 6.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.06 mm10.00 mm3.71 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626426185
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £1,089 GBP|Low: £403 GBP|High: £2,523 GBP|Avg: £1,042 GBP|+2.2%
Retailer 1
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Retailer 3
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Retailer 5
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Retailer 12
The Diamond Guys
August 3, 2026
Retailer 3£550 GBP
Retailer 9£603 GBP
Retailer 8£711 GBP
Retailer 11£711 GBP
Retailer 5£798 GBP
Retailer 2£909 GBP
Retailer 4£914 GBP
Retailer 1£1,089 GBP
Retailer 6£1,281 GBP
Retailer 10£1,302 GBP
The Diamond Guys£1,440 GBP
Retailer 7£1,715 GBP
Retailer 12£2,351 GBP

59 data points across 13 retailers

2 retailers£1,089 GBP to £1,440 GBP

B+
Cheapest Retailer
-
£1,089 GBP
CA$2,026 CAD
Most Expensive
B
The Diamond Guys
1954433971 · Oct 30
£1,440 GBP
$1,929 USD
View
1 more retailer has this diamond
Prices start from £1,089 GBPSave up to £351 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
3.71ct Round
£1,089 GBP