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Radiant|Lab Grown|IGI

1.52ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG634499931

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

Certificate IGI LG634499931

Diamond specifications and retailer prices

From $318 NZD
$179 USD
As of October 30, 2026
Save $2,060 NZD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,378 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.52ct lab-grown radiant diamond

This 1.52ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634499931 or 634499931. Listed at 16 retailers as of October 29, 2026, with prices from $318 to $2,378, a $2,060 spread on the same certified stone. Brilliant Earth lists it at $2,378. 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

1.52
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634499931
Dimensions8.06 × 5.66 × 3.88 mm
L/W Ratio1.42
Girdle conditionFaceted
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
8.06 mm5.66 mm1.52 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634499931
Side View
Table 65.0%Crown 27.9°Girdle: MediumPavilion 36°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,378 NZD|Low: $318 NZD|High: $2,520 NZD|Avg: $1,007 NZD|-5.6%
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
Retailer 15
October 31, 2026
Retailer 13$318 NZD
Retailer 9$369 NZD
Retailer 3$396 NZD
Retailer 15$396 NZD
Retailer 12$442 NZD
Retailer 2$689 NZD
Retailer 4$701 NZD
Retailer 8$705 NZD
Retailer 7$871 NZD
Retailer 6$988 NZD
Retailer 14$1,269 NZD
Retailer 10$1,341 NZD
Retailer 5$1,792 NZD
Retailer 11$1,857 NZD
Brilliant Earth$2,378 NZD

40 data points across 15 retailers

16 retailers$318 NZD to $2,378 NZD

A
Cheapest Retailer
-
$318 NZD
$179 USD
A
Retailer 2
-
$369 NZD
$208 USD
View
A
Retailer 3
-
$396 NZD
$223 USD
View
A
Retailer 4
-
$396 NZD
$223 USD
View
Retailer 5
-
$442 NZD
£196 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
$689 NZD
€370 EUR
View
B+
Retailer 7
-
$701 NZD
$395 USD
View
A
Retailer 8
-
$705 NZD
£313 GBP
View
B+
Retailer 9
-
$871 NZD
$491 USD
View
B+
Retailer 10
-
$988 NZD
$557 USD
View
B+
Retailer 11
-
$1,269 NZD
$715 USD
View
B
Retailer 12
-
$1,341 NZD
$756 USD
View
B
Retailer 13
-
$1,386 NZD
£615 GBP
View
B
Retailer 14
-
$1,792 NZD
$1,010 USD
View
B
Retailer 15
-
$1,857 NZD
£824 GBP
View
Most Expensive
B
Brilliant Earth
10435411A · Oct 29
$2,378 NZD
$1,340 USD
View
15 more retailers have this diamond
Prices start from $318 NZDSave up to $2,060 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
1.52ct Radiant
$318 NZD