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Round|Lab Grown|IGI

2.29ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG578308820

Shape and cutting style on the report: Round brilliant

Certificate IGI LG578308820

Diamond specifications and retailer prices

From £419 GBP
$562 USD
As of November 1, 2026
Save £2,439 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,858 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.29ct lab-grown round diamond

This 2.29ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG578308820 or 578308820. Listed at 23 retailers as of October 31, 2026, with prices from £419 to £2,858, a £2,439 spread on the same certified stone. Brilliant Earth lists it at £2,858. 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

2.29
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578308820
Dimensions8.46 × 8.50 × 5.17 mm
L/W Ratio1.00
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
8.46 mm8.50 mm2.29 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578308820
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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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 1
Current: £2,858 GBP|Low: £402 GBP|High: £2,926 GBP|Avg: £1,103 GBP|-2.3%
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
Retailer 17
November 1, 2026
Retailer 17£419 GBP
Retailer 6£469 GBP
Retailer 15£492 GBP
Retailer 4£519 GBP
Retailer 13£619 GBP
Retailer 9£696 GBP
Retailer 5£703 GBP
Retailer 2£808 GBP
Retailer 10£867 GBP
Retailer 11£1,154 GBP
Retailer 16£1,168 GBP
Retailer 12£1,254 GBP
Retailer 7£1,367 GBP
Retailer 8£1,676 GBP
Retailer 3£1,806 GBP
Retailer 14£2,259 GBP
Brilliant Earth£2,858 GBP

45 data points across 17 retailers

23 retailers£419 GBP to £2,858 GBP

A
Cheapest Retailer
-
£419 GBP
$562 USD
A
Retailer 2
-
£469 GBP
$629 USD
View
A
Retailer 3
-
£492 GBP
$659 USD
View
Final sale: no returns
Retailer 4
-
£519 GBP
$696 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
£519 GBP
$696 USD
View
A
Retailer 6
-
£619 GBP
$830 USD
View
A
Retailer 7
-
£696 GBP
$932 USD
View
A
Retailer 8
-
£703 GBP
$942 USD
View
A
Retailer 9
-
£808 GBP
View
A
Retailer 10
-
£867 GBP
€1,107 EUR
View
B+
Retailer 11
-
£1,087 GBP
$1,457 USD
View
B+
Retailer 12
-
£1,154 GBP
A$2,378 AUD
View
B+
Retailer 13
-
£1,168 GBP
$1,565 USD
View
B+
Retailer 14
-
£1,254 GBP
ZAR 27,146 ZAR
View
B+
Retailer 15
-
£1,367 GBP
$1,831 USD
View
B
Retailer 16
-
£1,673 GBP
$2,242 USD
View
B
Retailer 17
-
£1,685 GBP
$2,257 USD
View
B
Retailer 18
-
£1,710 GBP
$2,291 USD
View
B
Retailer 19
-
£1,806 GBP
$2,420 USD
View
Retailer 20
-
£2,244 GBP
A$4,627 AUD
View
Price last confirmed 157 days ago
B
Retailer 21
-
£2,259 GBP
View
B
Retailer 22
-
£2,814 GBP
$3,770 USD
View
Most Expensive
B
Brilliant Earth
14223543A · Oct 31
£2,858 GBP
$3,830 USD
View
22 more retailers have this diamond
Prices start from £419 GBPSave up to £2,439 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
2.29ct Round
£419 GBP