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Round|Lab Grown|IGI

2.71ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG650493573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG650493573

Diamond specifications and retailer prices

From £266 GBP
As of November 4, 2026
Save £915 GBP (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,181 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 2.71ct lab-grown round diamond

This 2.71ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650493573 or 650493573. Listed at 17 retailers as of November 4, 2026, with prices from £266 to £1,181, a £915 spread on the same certified stone. Brilliant Earth lists it at £1,181. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.71
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650493573
Dimensions8.98 × 8.94 × 5.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.98 mm8.94 mm2.71 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650493573
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,181 GBP|Low: £189 GBP|High: £2,184 GBP|Avg: £616 GBP|-45.9%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 6, 2026
Retailer 5£197 GBP
Retailer 8£229 GBP
Retailer 9£244 GBP
Retailer 16£266 GBP
Retailer 11£352 GBP
Retailer 2£381 GBP
Retailer 12£400 GBP
Retailer 10£454 GBP
Retailer 15£467 GBP
Retailer 7£475 GBP
Retailer 13£577 GBP
Retailer 14£614 GBP
Retailer 17£773 GBP
Retailer 6£786 GBP
Retailer 3£980 GBP
Retailer 4£1,144 GBP
Brilliant Earth£1,181 GBP

41 data points across 17 retailers

17 retailers£266 GBP to £1,181 GBP

Retailer 1
-
£197 GBP
Price last confirmed 11 days ago
Retailer 2
-
£229 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
£244 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£266 GBP
View
A
Retailer 5
-
£352 GBP
View
A
Retailer 6
-
£381 GBP
View
B+
Retailer 7
-
£400 GBP
View
A
Retailer 8
-
£454 GBP
View
A
Retailer 9
-
£467 GBP
View
Retailer 10
-
£475 GBP
View
Price last confirmed 11 days ago
A
Retailer 11
-
£577 GBP
View
B+
Retailer 12
-
£614 GBP
View
B+
Retailer 13
-
£773 GBP
View
Retailer 14
-
£786 GBP
View
Price last confirmed 13 days ago
Retailer 15
-
£980 GBP
View
Price last confirmed 12 days ago
Retailer 16
-
£1,144 GBP
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
14415442A · Nov 5
£1,181 GBP
$1,590 USD
View
16 more retailers have this diamond
Prices start from £266 GBPSave up to £915 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
2.71ct Round
£266 GBP