Round|Lab Grown|IGI

2.31ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG694547745

Shape and cutting style on the report: Round brilliant

Certificate IGI LG694547745

Diamond specifications and retailer prices

From £309 GBP
$414 USD
As of October 22, 2026
18 retailers carry this diamond
Most expensive: £2,590 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 2.31ct lab-grown round diamond

This 2.31ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG694547745 or 694547745. Listed at 18 retailers as of October 7, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.31
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG694547745
Dimensions8.50 × 8.44 × 5.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.50 mm8.44 mm2.31 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG694547745
Side View
Table 55.0%Crown 34.9°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 62.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 22
Current: £2,590 GBP|Low: £296 GBP|High: £2,590 GBP|Avg: £814 GBP
Rare Carat
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
Retailer 17
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Retailer 19
October 24, 2026
Retailer 19£309 GBP
Retailer 5£346 GBP
Retailer 7£346 GBP
Retailer 3£383 GBP
Retailer 10£383 GBP
Retailer 2£427 GBP
Retailer 18£528 GBP
Retailer 6£587 GBP
Retailer 13£606 GBP
Retailer 14£649 GBP
Retailer 15£857 GBP
Retailer 12£916 GBP
Retailer 17£1,075 GBP
Retailer 9£1,081 GBP
Retailer 8£1,231 GBP
Retailer 11£1,257 GBP
Retailer 16£1,415 GBP
Retailer 4£1,434 GBP
Rare Carat£2,590 GBP

38 data points across 19 retailers

18 retailers£309 GBP to £2,590 GBP

Retailer 1
-
£309 GBP
$414 USD
Price last confirmed 8 days ago
Retailer 2
-
£346 GBP
$464 USD
View
Price last confirmed 11 days ago
Retailer 3
-
£383 GBP
$513 USD
View
Price last confirmed 15 days ago
Retailer 4
-
£383 GBP
$513 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£427 GBP
View
Price last confirmed 7 days ago
Retailer 6
-
£528 GBP
$708 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£587 GBP
$787 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£606 GBP
View
Price last confirmed 7 days ago
Retailer 9
-
£649 GBP
$870 USD
View
Price last confirmed 8 days ago
Retailer 10
-
£857 GBP
A$1,766 AUD
View
Price last confirmed 11 days ago
Retailer 11
-
£916 GBP
ZAR 19,826 ZAR
View
Price last confirmed 7 days ago
Retailer 12
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 8 days ago
Retailer 13
-
£1,081 GBP
$1,448 USD
View
Price last confirmed 7 days ago
Retailer 14
-
£1,231 GBP
$1,650 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
£1,257 GBP
$1,685 USD
View
Price last confirmed 7 days ago
Retailer 16
-
£1,415 GBP
View
Price last confirmed 10 days ago
B+
Retailer 17
-
£1,434 GBP
$1,922 USD
View
Price last confirmed 7 days ago
Most Expensive
Rare Carat
GD7452_l_694547745 · Oct 7
£2,590 GBP
$3,470 USD
View
Price last confirmed 23 days ago
17 more retailers have this diamond

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.

B+
2.31ct Round
£309 GBP