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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 $795 NZD
HK$3,500 HKD
As of October 31, 2026
Save $3,339 NZD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,134 NZD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from $795 to $4,134, a $3,339 spread on the same certified stone. Brilliant Earth lists it at $4,134. 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
Colour
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

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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: Oct 31
Current: $4,134 NZD|Low: $656 NZD|High: $5,394 NZD|Avg: $2,034 NZD|-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
November 1, 2026
Retailer 12$795 NZD
Retailer 11$798 NZD
Retailer 8$935 NZD
Retailer 3$953 NZD
Retailer 7$1,075 NZD
Retailer 5$1,245 NZD
Retailer 4$1,505 NZD
Retailer 6$2,111 NZD
Retailer 2$2,258 NZD
Retailer 14$2,270 NZD
Retailer 10$2,322 NZD
Retailer 9$3,664 NZD
Retailer 13$3,793 NZD
Brilliant Earth$4,134 NZD

44 data points across 14 retailers

15 retailers$795 NZD to $4,134 NZD

A
Cheapest Retailer
-
$795 NZD
HK$3,500 HKD
A
Retailer 2
-
$798 NZD
$450 USD
View
A
Retailer 3
-
$935 NZD
€502 EUR
View
A
Retailer 4
-
$953 NZD
$537 USD
View
A
Retailer 5
-
$1,075 NZD
£477 GBP
View
A
Retailer 6
-
$1,245 NZD
$702 USD
View
B+
Retailer 7
-
$1,505 NZD
$848 USD
View
B+
Retailer 8
-
$2,111 NZD
$1,190 USD
View
B+
Retailer 9
-
$2,258 NZD
£1,002 GBP
View
B+
Retailer 10
-
$2,270 NZD
SGD 1,729 SGD
View
Retailer 11
-
$2,322 NZD
A$2,013 AUD
View
Price last confirmed 24 days ago
Retailer 12
-
$3,540 NZD
$1,995 USD
View
Price last confirmed 10 days ago
Retailer 13
-
$3,664 NZD
$2,065 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$3,793 NZD
$2,138 USD
View
Most Expensive
B
Brilliant Earth
18669149Y · Oct 31
$4,134 NZD
$2,330 USD
View
14 more retailers have this diamond
Prices start from $795 NZDSave up to $3,339 NZD

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
$795 NZD