Radiant|Lab Grown|IGI

1.45ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG754508818

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

Certificate IGI LG754508818

Diamond specifications and retailer prices

From $448 USD
HK$3,500 HKD
As of October 30, 2026
Save $1,882 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,330 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.45ct lab-grown radiant diamond

This 1.45ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508818 or 754508818. Listed at 15 retailers as of October 30, 2026, with prices from $448 to $2,330, a $1,882 spread on the same certified stone. Brilliant Earth lists it at $2,330. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508818
Dimensions5.57 × 5.57 × 3.68 mm
L/W Ratio1.00
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
5.57 mm5.57 mm1.45 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508818
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 66.1%

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 30
Current: $2,330 USD|Low: $370 USD|High: $3,040 USD|Avg: $1,144 USD|-23.4%
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
October 31, 2026
Retailer 12$448 USD
Retailer 11$450 USD
Retailer 9$526 USD
Retailer 3$537 USD
Retailer 2$606 USD
Retailer 5$702 USD
Retailer 4$848 USD
Retailer 6$1,190 USD
Retailer 7$1,274 USD
Retailer 14$1,279 USD
Retailer 10$1,308 USD
Retailer 8$2,065 USD
Retailer 13$2,138 USD
Brilliant Earth$2,330 USD

44 data points across 14 retailers

15 retailers$448 USD to $2,330 USD

A
Cheapest Retailer
-
$448 USD
HK$3,500 HKD
A
Retailer 2
-
$450 USD
View
Retailer 3
-
$526 USD
€501 EUR
View
Price last confirmed 7 days ago
A
Retailer 4
-
$537 USD
View
A
Retailer 5
-
$606 USD
£477 GBP
View
A
Retailer 6
-
$702 USD
View
B+
Retailer 7
-
$848 USD
View
B+
Retailer 8
-
$1,190 USD
View
B+
Retailer 9
-
$1,274 USD
£1,003 GBP
View
B+
Retailer 10
-
$1,279 USD
SGD 1,729 SGD
View
Retailer 11
-
$1,308 USD
A$2,013 AUD
View
Price last confirmed 23 days ago
Retailer 12
-
$1,995 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$2,065 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$2,138 USD
View
Most Expensive
B
Brilliant Earth
18669149Y · Oct 30
$2,330 USD
View
14 more retailers have this diamond
Prices start from $448 USDSave up to $1,882 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
1.45ct Radiant
$448 USD