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Round|Lab Grown|IGI

1.54ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG792621601

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792621601

Diamond specifications and retailer prices

From £157 GBP
As of November 3, 2026
Save £663 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £820 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG792621601 or 792621601. Listed at 22 retailers as of November 3, 2026, with prices from £157 to £820, a £663 spread on the same certified stone. Brilliant Earth lists it at £820. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792621601
Dimensions7.51 × 7.47 × 4.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm7.47 mm1.54 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792621601
Side View
Table 62.0%Crown 32.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £820 GBP|Low: £155 GBP|High: £1,111 GBP|Avg: £436 GBP|-26.2%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 19
November 3, 2026
Retailer 8£157 GBP
Retailer 3£175 GBP
Retailer 19£182 GBP
Retailer 16£195 GBP
Retailer 10£195 GBP
Retailer 2£303 GBP
Retailer 4£334 GBP
Retailer 14£336 GBP
Retailer 11£344 GBP
Retailer 18£441 GBP
Retailer 12£453 GBP
Retailer 13£514 GBP
Retailer 9£570 GBP
Retailer 17£626 GBP
Retailer 5£632 GBP
Retailer 7£665 GBP
Retailer 15£780 GBP
Retailer 6£789 GBP
Brilliant Earth£820 GBP

30 data points across 19 retailers

22 retailers£157 GBP to £820 GBP

A
Cheapest Retailer
-
£157 GBP
Retailer 2
-
£159 GBP
View
Price last confirmed 47 days ago
A
Retailer 3
-
£175 GBP
View
Final sale: no returns
A
Retailer 4
-
£182 GBP
View
Retailer 5
-
£193 GBP
View
Price last confirmed 46 days ago
A
Retailer 6
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£195 GBP
View
Retailer 7
-
£195 GBP
View
Price last confirmed 10 days ago
A
Retailer 8
-
£303 GBP
View
B+
Retailer 9
-
£334 GBP
View
A
Retailer 10
-
£336 GBP
View
A
Retailer 11
-
£344 GBP
View
A
Retailer 12
-
£441 GBP
View
A
Retailer 13
-
£453 GBP
View
B+
Retailer 14
-
£514 GBP
View
B+
Retailer 15
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£570 GBP
View
B+
Retailer 16
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£626 GBP
View
Retailer 17
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£629 GBP
View
Price last confirmed 44 days ago
B+
Retailer 18
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£632 GBP
View
B+
Retailer 19
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£665 GBP
View
B+
Retailer 20
-
£780 GBP
View
B+
Retailer 21
-
£789 GBP
View
Most Expensive
B+
Brilliant Earth
21501285A · Nov 3
£820 GBP
$1,100 USD
View
21 more retailers have this diamond
Prices start from £157 GBPSave up to £663 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
1.54ct Round
£157 GBP