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Radiant|Lab Grown|IGI

3.23ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG583323888

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG583323888

Diamond specifications and retailer prices

From £673 GBP
$896 USD
As of October 27, 2026
Save £7,332 GBP (92%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £8,005 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.23ct lab-grown radiant diamond

This 3.23ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG583323888 or 583323888. Listed at 16 retailers as of October 27, 2026, with prices from £673 to £8,005, a £7,332 spread on the same certified stone. Brilliant Earth lists it at £8,005. 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

3.23
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG583323888
Dimensions10.15 × 7.16 × 5.11 mm
L/W Ratio1.42
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
10.15 mm7.16 mm3.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG583323888
Side View
Table 65.0%Crown 40°Girdle: MediumPavilion 34.9°Culet: NoneDepth 71.4%

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 27
Current: £8,005 GBP|Low: £658 GBP|High: £8,253 GBP|Avg: £2,554 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 30, 2026
Retailer 14£673 GBP
Retailer 3£732 GBP
Retailer 16£924 GBP
Retailer 6£935 GBP
Retailer 8£1,011 GBP
Retailer 15£1,253 GBP
Retailer 5£1,389 GBP
Retailer 17£1,736 GBP
Retailer 10£1,934 GBP
Retailer 4£1,979 GBP
Retailer 12£2,131 GBP
Retailer 13£2,291 GBP
Retailer 11£2,778 GBP
Retailer 7£3,732 GBP
Retailer 9£4,030 GBP
Retailer 2£5,655 GBP
Brilliant Earth£8,005 GBP

34 data points across 17 retailers

16 retailers£673 GBP to £8,005 GBP

A
Cheapest Retailer
-
£673 GBP
$896 USD
A
Retailer 2
-
£732 GBP
$975 USD
View
A
Retailer 3
-
£924 GBP
$1,230 USD
View
A
Retailer 4
-
£935 GBP
$1,245 USD
View
A
Retailer 5
-
£1,011 GBP
$1,346 USD
View
Final sale: no returns
A
Retailer 6
-
£1,253 GBP
$1,668 USD
View
A
Retailer 7
-
£1,389 GBP
€1,761 EUR
View
A
Retailer 8
-
£1,736 GBP
$2,312 USD
View
A
Retailer 9
-
£1,934 GBP
$2,575 USD
View
Retailer 10
-
£1,979 GBP
A$4,054 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
£2,131 GBP
$2,838 USD
View
B+
Retailer 12
-
£2,291 GBP
$3,051 USD
View
B+
Retailer 13
-
£2,778 GBP
View
Retailer 14
-
£3,732 GBP
A$7,645 AUD
View
Price last confirmed 21 days ago
B
Retailer 15
-
£5,655 GBP
$7,530 USD
View
Most Expensive
B
Brilliant Earth
7451581Y · Oct 29
£8,005 GBP
$10,660 USD
View
15 more retailers have this diamond
Prices start from £673 GBPSave up to £7,332 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
3.23ct Radiant
£673 GBP