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Round|Lab Grown|IGI

1.50ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG792621631

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792621631

Diamond specifications and retailer prices

From £155 GBP
As of November 3, 2026
Save £623 GBP (80%) 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 LG792621631 or 792621631. Listed at 19 retailers as of November 3, 2026, with a 402% 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 angle34.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792621631
Dimensions7.39 × 7.34 × 4.48 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
7.39 mm7.34 mm1.50 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792621631
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.9%

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: £153 GBP|High: £1,081 GBP|Avg: £435 GBP
Brilliant Earth
Retailer 2
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Retailer 19
November 3, 2026
Retailer 9£155 GBP
Retailer 4£173 GBP
Retailer 3£180 GBP
Retailer 16£192 GBP
Retailer 10£193 GBP
Retailer 2£299 GBP
Retailer 18£330 GBP
Retailer 5£331 GBP
Retailer 14£332 GBP
Retailer 19£438 GBP
Retailer 13£448 GBP
Retailer 12£506 GBP
Retailer 11£570 GBP
Retailer 17£618 GBP
Retailer 6£623 GBP
Retailer 8£658 GBP
Retailer 15£770 GBP
Retailer 7£778 GBP
Brilliant Earth£1,081 GBP

30 data points across 19 retailers

19 retailers£155 GBP to £778 GBP

A
Cheapest Retailer
-
£155 GBP
A
Retailer 2
-
£173 GBP
View
Final sale: no returns
A
Retailer 3
-
£180 GBP
View
A
Retailer 4
-
£192 GBP
View
Retailer 5
-
£193 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
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£299 GBP
View
A
Retailer 7
-
£330 GBP
View
B+
Retailer 8
-
£331 GBP
View
A
Retailer 9
-
£332 GBP
View
A
Retailer 10
-
£438 GBP
View
A
Retailer 11
-
£448 GBP
View
B+
Retailer 12
-
£506 GBP
View
B+
Retailer 13
-
£570 GBP
View
B+
Retailer 14
-
£618 GBP
View
B+
Retailer 15
-
£623 GBP
View
B+
Retailer 16
-
£658 GBP
View
B+
Retailer 17
-
£770 GBP
View
B+
Retailer 18
-
£778 GBP
View
Most Expensive
Brilliant Earth
21501746A · Oct 16
£1,081 GBP
$1,450 USD
View
Price last confirmed 18 days ago
18 more retailers have this diamond
Prices start from £155 GBPSave up to £623 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
£155 GBP