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Round|Lab Grown|IGI

1.51ct H VVS2 Round Lab Grown Diamond

ID • H/VVS2 • IGI LG845663351

Shape and cutting style on the report: Round brilliant

Certificate IGI LG845663351

Diamond specifications and retailer prices

From £191 GBP
As of November 3, 2026
Save £866 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,089 GBP at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845663351 or 845663351. Listed at 19 retailers as of November 3, 2026, with a 454% 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

1.51
Carat
H
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845663351
Dimensions7.35 × 7.38 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.35 mm7.38 mm1.51 ctH / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845663351
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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: £1,089 GBP|Low: £191 GBP|High: £1,089 GBP|Avg: £553 GBP
Brilliant Earth
Retailer 2
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Retailer 19
November 3, 2026
Retailer 3£191 GBP
Retailer 19£221 GBP
Retailer 6£236 GBP
Retailer 18£236 GBP
Retailer 16£350 GBP
Retailer 4£355 GBP
Retailer 2£368 GBP
Retailer 17£392 GBP
Retailer 9£396 GBP
Retailer 15£409 GBP
Retailer 7£432 GBP
Retailer 12£553 GBP
Retailer 14£608 GBP
Retailer 10£615 GBP
Retailer 5£761 GBP
Retailer 8£799 GBP
Retailer 13£948 GBP
Retailer 11£1,057 GBP
Brilliant Earth£1,089 GBP

17 data points across 19 retailers

19 retailers£191 GBP to £1,057 GBP

A
Cheapest Retailer
-
£191 GBP
A
Retailer 2
-
£221 GBP
View
A
Retailer 3
-
£236 GBP
View
Retailer 4
-
£236 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£350 GBP
View
A
Retailer 6
-
£355 GBP
View
A
Retailer 7
-
£368 GBP
View
A
Retailer 8
-
£392 GBP
View
A
Retailer 9
-
£396 GBP
View
A
Retailer 10
-
£409 GBP
View
B+
Retailer 11
-
£432 GBP
View
B+
Retailer 12
-
£553 GBP
View
B+
Retailer 13
-
£608 GBP
View
Retailer 14
-
£615 GBP
View
Price last confirmed 14 days ago
B
Retailer 15
-
£761 GBP
View
B
Retailer 16
-
£799 GBP
View
B
Retailer 17
-
£948 GBP
View
B
Retailer 18
-
£1,057 GBP
View
Most Expensive
Brilliant Earth
22183961A · Oct 18
£1,089 GBP
$1,460 USD
View
Price last confirmed 16 days ago
18 more retailers have this diamond
Prices start from £191 GBPSave up to £866 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
1.51ct Round
£191 GBP