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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 £134 GBP
$179 USD
As of October 30, 2026
Save £866 GBP (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,000 GBP 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 £134 to £1,000, a £866 spread on the same certified stone. Brilliant Earth lists it at £1,000. 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: £1,000 GBP|Low: £134 GBP|High: £1,060 GBP|Avg: £424 GBP|-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 30, 2026
Retailer 13£134 GBP
Retailer 8£155 GBP
Retailer 3£166 GBP
Retailer 15£166 GBP
Retailer 12£186 GBP
Retailer 4£295 GBP
Retailer 2£299 GBP
Retailer 10£305 GBP
Retailer 7£366 GBP
Retailer 6£416 GBP
Retailer 14£534 GBP
Retailer 9£564 GBP
Retailer 5£754 GBP
Retailer 11£781 GBP
Brilliant Earth£1,000 GBP

39 data points across 15 retailers

16 retailers£134 GBP to £1,000 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£155 GBP
$208 USD
View
A
Retailer 3
-
£166 GBP
$223 USD
View
A
Retailer 4
-
£166 GBP
$223 USD
View
Retailer 5
-
£186 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£295 GBP
$395 USD
View
A
Retailer 7
-
£299 GBP
View
Retailer 8
-
£305 GBP
€389 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£366 GBP
$491 USD
View
B+
Retailer 10
-
£416 GBP
$557 USD
View
B+
Retailer 11
-
£534 GBP
$715 USD
View
B
Retailer 12
-
£564 GBP
$756 USD
View
B
Retailer 13
-
£583 GBP
View
B
Retailer 14
-
£754 GBP
$1,010 USD
View
B
Retailer 15
-
£781 GBP
View
Most Expensive
B
Brilliant Earth
10435411A · Oct 29
£1,000 GBP
$1,340 USD
View
15 more retailers have this diamond
Prices start from £134 GBPSave up to £866 GBP

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
£134 GBP