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Round|Lab Grown|IGI

1.50ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG792621449

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792621449

Diamond specifications and retailer prices

From £154 GBP
As of November 3, 2026
Save £735 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,081 GBP at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.5ct lab-grown round diamond

This 1.5ct 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 LG792621449 or 792621449. Listed at 19 retailers as of November 2, 2026, with a 479% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792621449
Dimensions7.32 × 7.23 × 4.59 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
7.32 mm7.23 mm1.50 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792621449
Side View
Table 56.0%Crown 34.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.2%

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: £1,081 GBP|Low: £151 GBP|High: £1,081 GBP|Avg: £450 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
Retailer 19
November 3, 2026
Retailer 8£154 GBP
Retailer 3£172 GBP
Retailer 19£178 GBP
Retailer 16£190 GBP
Retailer 9£192 GBP
Retailer 2£296 GBP
Retailer 14£328 GBP
Retailer 4£330 GBP
Retailer 11£330 GBP
Retailer 18£437 GBP
Retailer 13£443 GBP
Retailer 12£500 GBP
Retailer 10£570 GBP
Retailer 17£611 GBP
Retailer 5£620 GBP
Retailer 7£651 GBP
Retailer 6£768 GBP
Retailer 15£889 GBP
Brilliant Earth£1,081 GBP

31 data points across 19 retailers

19 retailers£154 GBP to £889 GBP

A
Cheapest Retailer
-
£154 GBP
A
Retailer 2
-
£172 GBP
View
Final sale: no returns
A
Retailer 3
-
£178 GBP
View
A
Retailer 4
-
£190 GBP
View
Retailer 5
-
£192 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
-
£296 GBP
View
A
Retailer 7
-
£328 GBP
View
A
Retailer 8
-
£330 GBP
View
B+
Retailer 9
-
£330 GBP
View
A
Retailer 10
-
£437 GBP
View
A
Retailer 11
-
£443 GBP
View
B+
Retailer 12
-
£500 GBP
View
B+
Retailer 13
-
£570 GBP
View
B+
Retailer 14
-
£611 GBP
View
B+
Retailer 15
-
£620 GBP
View
B+
Retailer 16
-
£651 GBP
View
B+
Retailer 17
-
£768 GBP
View
B
Retailer 18
-
£889 GBP
View
Most Expensive
Brilliant Earth
21501876A · Oct 16
£1,081 GBP
$1,450 USD
View
Price last confirmed 18 days ago
18 more retailers have this diamond
Prices start from £154 GBPSave up to £735 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
1.50ct Round
£154 GBP