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Radiant|Lab Grown|IGI

4.50ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG613377657

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

Certificate IGI LG613377657

Diamond specifications and retailer prices

From $1,182 AUD
$830 USD
As of November 1, 2026
Save $2,168 AUD (65%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,350 AUD at Adiamor · As of October 31, 2026
View at Adiamor

About this 4.5ct lab-grown radiant diamond

This 4.5ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613377657 or 613377657. Listed at 6 retailers as of October 31, 2026, with prices from $1,182 to $3,350, a $2,168 spread on the same certified stone. Adiamor lists it at $3,350. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613377657
Dimensions11.97 × 8.12 × 5.35 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.97 mm8.12 mm4.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613377657
Side View
Table 64.0%Crown 46°Girdle: MediumPavilion 34.2°Culet: NoneDepth 65.9%

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: $3,350 AUD|Low: $1,071 AUD|High: $8,442 AUD|Avg: $3,679 AUD|-2.8%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5$1,182 AUD
Retailer 2$1,432 AUD
Retailer 3$2,215 AUD
Retailer 6$2,789 AUD
Adiamor$3,350 AUD
Retailer 4$4,711 AUD
Retailer 8$5,361 AUD
Retailer 7$8,442 AUD

12 data points across 8 retailers

6 retailers$1,182 AUD to $3,350 AUD

B+
Cheapest Retailer
-
$1,182 AUD
$830 USD
A
Retailer 2
-
$1,432 AUD
€958 EUR
View
Retailer 3
-
$2,215 AUD
$1,556 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$2,294 AUD
£1,269 GBP
View
B
Retailer 5
-
$2,789 AUD
$1,959 USD
View
Most Expensive
B
Adiamor
D-73418191 · Oct 31
$3,350 AUD
$2,353 USD
View
5 more retailers have this diamond
Prices start from $1,182 AUDSave up to $2,168 AUD

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 Radiant
$1,182 AUD