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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 $179 USD
As of October 27, 2026
Save $1,161 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,340 USD 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 27, 2026, with prices from $179 to $1,340, a $1,161 spread on the same certified stone. Brilliant Earth lists it at $1,340. 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
Color
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,340 USD|Low: $179 USD|High: $1,420 USD|Avg: $570 USD|-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 29, 2026
Retailer 13$179 USD
Retailer 8$208 USD
Retailer 3$223 USD
Retailer 15$223 USD
Retailer 12$249 USD
Retailer 4$395 USD
Retailer 2$399 USD
Retailer 10$408 USD
Retailer 7$491 USD
Retailer 6$557 USD
Retailer 14$715 USD
Retailer 9$756 USD
Retailer 5$1,010 USD
Retailer 11$1,046 USD
Brilliant Earth$1,340 USD

39 data points across 15 retailers

16 retailers$179 USD to $1,340 USD

A
Cheapest Retailer
-
$179 USD
A
Retailer 2
-
$208 USD
View
A
Retailer 3
-
$223 USD
View
A
Retailer 4
-
$223 USD
View
Retailer 5
-
$249 USD
£196 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$395 USD
View
A
Retailer 7
-
$399 USD
£314 GBP
View
A
Retailer 8
-
$408 USD
€389 EUR
View
B+
Retailer 9
-
$491 USD
View
B+
Retailer 10
-
$557 USD
View
B+
Retailer 11
-
$715 USD
View
B
Retailer 12
-
$756 USD
View
B
Retailer 13
-
$781 USD
£615 GBP
View
B
Retailer 14
-
$1,010 USD
View
B
Retailer 15
-
$1,046 USD
£824 GBP
View
Most Expensive
B
Brilliant Earth
10435411A · Oct 29
$1,340 USD
View
15 more retailers have this diamond
Prices start from $179 USDSave up to $1,161 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
1.52ct Radiant
$179 USD