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Oval|Lab Grown|IGI

1.51ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG771610803

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG771610803

Diamond specifications and retailer prices

From £256 GBP
As of November 4, 2026
Save £670 GBP (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £926 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG771610803 or 771610803. Listed at 9 retailers as of November 4, 2026, with prices from £256 to £926, a £670 spread on the same certified stone. Brilliant Earth lists it at £926. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771610803
Dimensions9.33 × 6.49 × 4.02 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.33 mm6.49 mm1.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771610803
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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 4
Current: £926 GBP|Low: £256 GBP|High: £1,000 GBP|Avg: £556 GBP|-7.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6£256 GBP
Retailer 2£344 GBP
Retailer 4£345 GBP
Retailer 7£434 GBP
Retailer 5£670 GBP
Retailer 3£881 GBP
Brilliant Earth£926 GBP

44 data points across 7 retailers

9 retailers£256 GBP to £926 GBP

B+
Cheapest Retailer
-
£256 GBP
A
Retailer 2
-
£344 GBP
View
A
Retailer 3
-
£345 GBP
View
A
Retailer 4
-
£353 GBP
View
A
Retailer 5
-
£434 GBP
View
B+
Retailer 6
-
£647 GBP
View
B+
Retailer 7
-
£670 GBP
View
B
Retailer 8
-
£881 GBP
View
Most Expensive
B
Brilliant Earth
20286476A · Nov 4
£926 GBP
$1,250 USD
View
8 more retailers have this diamond
Prices start from £256 GBPSave up to £670 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 Oval
£256 GBP