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Radiant|Lab Grown|IGI

1.53ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG625421937

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

Certificate IGI LG625421937

Diamond specifications and retailer prices

From $2,435 NZD
£1,080 GBP
As of November 2, 2026
Save $4,875 NZD (67%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,310 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG625421937 or 625421937. Listed at 2 retailers as of October 31, 2026, with prices from $2,435 to $7,310, a $4,875 spread on the same certified stone. Brilliant Earth lists it at $7,310. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625421937
Dimensions8.19 × 5.62 × 3.83 mm
L/W Ratio1.46
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
8.19 mm5.62 mm1.53 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625421937
Side View
Table 68.0%Crown 47.9°Girdle: MediumPavilion 34.5°Culet: NoneDepth 68.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $7,310 NZD|Low: $5,933 NZD|High: $11,781 NZD|Avg: $7,706 NZD
Brilliant Earth
Retailer 2
Retailer 3
April 14, 2026
Retailer 3$5,933 NZD
Brilliant Earth$7,310 NZD
Retailer 2$11,781 NZD

6 data points across 3 retailers

2 retailers$2,435 NZD to $7,310 NZD

B+
Cheapest Retailer
-
$2,435 NZD
£1,080 GBP
Most Expensive
B
Brilliant Earth
16335307A · Oct 31
$7,310 NZD
$4,120 USD
View
1 more retailer has this diamond
Prices start from $2,435 NZDSave up to $4,875 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.

B+
1.53ct Radiant
$2,435 NZD