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Round|Lab Grown|IGI

1.51ct E VVS2 Round Lab Grown Diamond

ID • E/VVS2 • IGI LG781631379

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631379

Diamond specifications and retailer prices

From £192 GBP
As of November 5, 2026
Save £833 GBP (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,352 GBP at Brilliant Earth · As of October 27, 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 E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781631379 or 781631379. Listed at 24 retailers as of November 5, 2026, with a 434% 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
E
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631379
Dimensions7.38 × 7.44 × 4.54 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
7.38 mm7.44 mm1.51 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631379
Side View
Table 55.0%Crown 33.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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 5
Current: £1,352 GBP|Low: £184 GBP|High: £1,419 GBP|Avg: £501 GBP|-4.7%
Brilliant Earth
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
Retailer 16
November 6, 2026
Retailer 5£192 GBP
Retailer 4£223 GBP
Retailer 3£238 GBP
Retailer 6£238 GBP
Retailer 7£266 GBP
Retailer 12£357 GBP
Retailer 10£362 GBP
Retailer 15£387 GBP
Retailer 14£411 GBP
Retailer 2£446 GBP
Retailer 13£557 GBP
Retailer 9£617 GBP
Retailer 16£765 GBP
Retailer 8£936 GBP
Retailer 11£951 GBP
Brilliant Earth£1,352 GBP

35 data points across 16 retailers

24 retailers£192 GBP to £1,025 GBP

A
Cheapest Retailer
-
£192 GBP
A
Retailer 2
-
£214 GBP
View
Final sale: no returns
A
Retailer 3
-
£223 GBP
View
A
Retailer 4
-
£238 GBP
View
Retailer 5
-
£238 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£266 GBP
View
B+
Retailer 7
-
£321 GBP
View
A
Retailer 8
-
£357 GBP
View
A
Retailer 9
-
£362 GBP
View
A
Retailer 10
-
£371 GBP
View
Retailer 11
-
£387 GBP
View
Price last confirmed 8 days ago
A
Retailer 12
-
£411 GBP
View
B+
Retailer 13
-
£446 GBP
View
B+
Retailer 14
-
£489 GBP
View
B+
Retailer 15
-
£557 GBP
View
B+
Retailer 16
-
£617 GBP
View
B
Retailer 17
-
£737 GBP
View
B
Retailer 18
-
£765 GBP
View
B
Retailer 19
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£782 GBP
View
B
Retailer 20
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£803 GBP
View
B
Retailer 21
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£936 GBP
View
B
Retailer 22
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£951 GBP
View
B
Retailer 23
-
£1,025 GBP
View
Most Expensive
Brilliant Earth
20979994A · Oct 27
£1,352 GBP
$1,820 USD
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from £192 GBPSave up to £833 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
£192 GBP