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Round|Lab Grown|IGI

2.31ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG831694233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG831694233

Diamond specifications and retailer prices

From £355 GBP
$476 USD
As of October 31, 2026
Save £1,118 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,473 GBP at Brilliance · As of October 30, 2026
View at Brilliance

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 LG831694233 or 831694233. Listed at 11 retailers as of October 30, 2026, with prices from £355 to £1,473, a £1,118 spread on the same certified stone. Brilliance lists it at £1,473. 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 angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831694233
Dimensions8.42 × 8.47 × 5.24 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.42 mm8.47 mm2.31 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831694233
Side View
Table 56.0%Crown 35.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,473 GBP|Low: £355 GBP|High: £1,473 GBP|Avg: £840 GBP
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2£355 GBP
Retailer 9£356 GBP
Retailer 4£394 GBP
Retailer 11£528 GBP
Retailer 10£597 GBP
Retailer 5£642 GBP
Retailer 8£893 GBP
Retailer 7£1,083 GBP
Retailer 6£1,266 GBP
Retailer 3£1,290 GBP
Brilliance£1,473 GBP

3 data points across 11 retailers

11 retailers£355 GBP to £1,473 GBP

A
Cheapest Retailer
-
£355 GBP
$476 USD
Final sale: no returns
A
Retailer 2
-
£356 GBP
$477 USD
View
A
Retailer 3
-
£394 GBP
$528 USD
View
A
Retailer 4
-
£528 GBP
$708 USD
View
A
Retailer 5
-
£597 GBP
$800 USD
View
A
Retailer 6
-
£642 GBP
View
A
Retailer 7
-
£893 GBP
$1,197 USD
View
A
Retailer 8
-
£1,083 GBP
$1,451 USD
View
B+
Retailer 9
-
£1,266 GBP
$1,696 USD
View
B+
Retailer 10
-
£1,290 GBP
$1,729 USD
View
Most Expensive
B+
Brilliance
D46558973 · Oct 30
£1,473 GBP
$1,974 USD
View
10 more retailers have this diamond
Prices start from £355 GBPSave up to £1,118 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
2.31ct Round
£355 GBP