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Round|Lab Grown|IGI

4.50ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG662485990

Shape and cutting style on the report: Round brilliant

Certificate IGI LG662485990

Diamond specifications and retailer prices

From £598 GBP
$801 USD
As of November 1, 2026
Save £2,016 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,614 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.5ct lab-grown round diamond

This 4.5ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662485990 or 662485990. Listed at 13 retailers as of October 29, 2026, with prices from £598 to £2,614, a £2,016 spread on the same certified stone. MOH London lists it at £2,614. 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

4.50
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662485990
Dimensions10.62 × 10.67 × 6.48 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
10.62 mm10.67 mm4.50 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662485990
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.8%

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: Nov 1
Current: £2,614 GBP|Low: £598 GBP|High: £4,276 GBP|Avg: £1,747 GBP
MOH London
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
November 1, 2026
Retailer 12£598 GBP
Retailer 10£651 GBP
Retailer 15£693 GBP
Retailer 16£812 GBP
Retailer 14£969 GBP
Retailer 9£1,061 GBP
Retailer 13£1,101 GBP
Retailer 4£1,119 GBP
Retailer 2£1,300 GBP
Retailer 11£1,649 GBP
Retailer 5£1,765 GBP
Retailer 6£1,950 GBP
Retailer 3£2,216 GBP
MOH London£2,614 GBP
Retailer 7£4,247 GBP
Retailer 8£4,276 GBP

5 data points across 16 retailers

13 retailers£598 GBP to £2,614 GBP

A
Cheapest Retailer
-
£598 GBP
$801 USD
A
Retailer 2
-
£651 GBP
$872 USD
View
A
Retailer 3
-
£693 GBP
$929 USD
View
A
Retailer 4
-
£812 GBP
HK$8,500 HKD
View
A
Retailer 5
-
£969 GBP
$1,298 USD
View
A
Retailer 6
-
£1,061 GBP
View
B+
Retailer 7
-
£1,101 GBP
€1,405 EUR
View
B+
Retailer 8
-
£1,119 GBP
$1,499 USD
View
B+
Retailer 9
-
£1,300 GBP
View
B
Retailer 10
-
£1,649 GBP
$2,210 USD
View
B
Retailer 11
-
£1,950 GBP
$2,613 USD
View
B
Retailer 12
-
£2,216 GBP
$2,969 USD
View
Most Expensive
B
MOH London
LG662485990 · Oct 29
£2,614 GBP
View
12 more retailers have this diamond
Prices start from £598 GBPSave up to £2,016 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
4.50ct Round
£598 GBP