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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 $801 USD
As of October 29, 2026
Save $2,702 USD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,503 USD 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 $801 to $3,503, a $2,702 spread on the same certified stone. MOH London lists it at $3,503. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,503 USD|Low: $801 USD|High: $5,730 USD|Avg: $2,364 USD
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
October 31, 2026
Retailer 12$801 USD
Retailer 2$872 USD
Retailer 15$929 USD
Retailer 16$1,088 USD
Retailer 14$1,298 USD
Retailer 11$1,421 USD
Retailer 13$1,475 USD
Retailer 4$1,499 USD
Retailer 10$1,747 USD
Retailer 9$2,210 USD
Retailer 5$2,365 USD
Retailer 6$2,613 USD
Retailer 3$2,969 USD
MOH London$3,503 USD
Retailer 7$5,691 USD
Retailer 8$5,730 USD

4 data points across 16 retailers

13 retailers$801 USD to $3,503 USD

A
Cheapest Retailer
-
$801 USD
A
Retailer 2
-
$872 USD
View
A
Retailer 3
-
$929 USD
View
A
Retailer 4
-
$1,088 USD
HK$8,500 HKD
View
A
Retailer 5
-
$1,298 USD
View
A
Retailer 6
-
$1,421 USD
£1,119 GBP
View
B+
Retailer 7
-
$1,475 USD
€1,405 EUR
View
B+
Retailer 8
-
$1,499 USD
View
B+
Retailer 9
-
$1,747 USD
£1,376 GBP
View
B
Retailer 10
-
$2,210 USD
View
B
Retailer 11
-
$2,613 USD
View
B
Retailer 12
-
$2,969 USD
View
Most Expensive
B
MOH London
LG662485990 · Oct 29
$3,503 USD
£2,758 GBP
View
12 more retailers have this diamond
Prices start from $801 USDSave up to $2,702 USD

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
$801 USD