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Round|Lab Grown|IGI

3.71ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG647482600

Shape and cutting style on the report: Round brilliant

Certificate IGI LG647482600

Diamond specifications and retailer prices

From £351 GBP
$467 USD
As of October 29, 2026
Save £1,143 GBP (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,741 GBP at Rare Carat · As of July 27, 2026
View at Rare Carat

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 LG647482600 or 647482600. Listed at 7 retailers as of October 29, 2026, with a 326% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647482600
Dimensions10.01 × 9.97 × 6.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.01 mm9.97 mm3.71 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647482600
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,741 GBP|Low: £351 GBP|High: £2,651 GBP|Avg: £970 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 28, 2026
Retailer 2£351 GBP
Retailer 11£366 GBP
Retailer 15£371 GBP
Retailer 8£493 GBP
Retailer 12£597 GBP
Retailer 6£616 GBP
Retailer 14£616 GBP
Retailer 13£664 GBP
Retailer 10£957 GBP
Retailer 5£1,007 GBP
Retailer 7£1,129 GBP
Retailer 3£1,428 GBP
Retailer 4£1,494 GBP
Rare Carat£1,741 GBP
Retailer 9£2,651 GBP

12 data points across 15 retailers

7 retailers£351 GBP to £1,494 GBP

A
Cheapest Retailer
-
£351 GBP
$467 USD
Final sale: no returns
Retailer 2
-
£366 GBP
$487 USD
View
Price last confirmed 44 days ago
B+
Retailer 3
-
£493 GBP
$657 USD
View
Retailer 4
-
£957 GBP
$1,274 USD
View
Price last confirmed 44 days ago
B+
Retailer 5
-
£1,129 GBP
CA$2,087 CAD
View
B
Retailer 6
-
£1,494 GBP
$1,989 USD
View
Most Expensive
Rare Carat
647482600 · Jul 27
£1,741 GBP
$2,319 USD
View
Price last confirmed 95 days ago
6 more retailers have this diamond
Prices start from £351 GBPSave up to £1,143 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.

A
3.71ct Round
£351 GBP