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Radiant|Lab Grown|IGI

3.72ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG835634491

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

Certificate IGI LG835634491

Diamond specifications and retailer prices

From £516 GBP
HK$5,400 HKD
As of October 30, 2026
Save £2,063 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,579 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.72ct lab-grown radiant diamond

This 3.72ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835634491 or 835634491. Listed at 16 retailers as of October 28, 2026, with prices from £516 to £2,579, a £2,063 spread on the same certified stone. Rare Carat lists it at £2,579. 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

3.72
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835634491
Dimensions10.53 × 7.80 × 5.10 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.53 mm7.80 mm3.72 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835634491
Side View
Table 66.0%Crown 42.7°Girdle: MediumPavilion 33.7°Culet: NoneDepth 65.4%

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 30
Current: £2,579 GBP|Low: £417 GBP|High: £2,616 GBP|Avg: £1,136 GBP|-1.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3£422 GBP
Retailer 4£516 GBP
Retailer 10£541 GBP
Retailer 7£640 GBP
Retailer 8£680 GBP
Retailer 9£726 GBP
Retailer 5£774 GBP
Retailer 2£1,087 GBP
Retailer 11£1,456 GBP
Retailer 12£1,480 GBP
Retailer 6£1,954 GBP
Rare Carat£2,579 GBP

37 data points across 12 retailers

16 retailers£516 GBP to £2,579 GBP

Retailer 1
-
£377 GBP
$505 USD
Price last confirmed 14 days ago
Retailer 2
-
£422 GBP
$566 USD
View
Price last confirmed 33 days ago
Retailer 3
-
£461 GBP
$618 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£468 GBP
$627 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
£516 GBP
HK$5,400 HKD
View
A
Retailer 6
-
£541 GBP
$725 USD
View
Retailer 7
-
£640 GBP
View
Price last confirmed 12 days ago
Retailer 8
-
£680 GBP
€868 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£726 GBP
$973 USD
View
A
Retailer 10
-
£774 GBP
View
B+
Retailer 11
-
£1,087 GBP
$1,456 USD
View
Retailer 12
-
£1,230 GBP
$1,648 USD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
£1,456 GBP
$1,951 USD
View
B+
Retailer 14
-
£1,480 GBP
SGD 2,680 SGD
View
B
Retailer 15
-
£1,954 GBP
View
Most Expensive
B
Rare Carat
160228-C · Oct 28
£2,579 GBP
$3,455 USD
View
15 more retailers have this diamond
Prices start from £516 GBPSave up to £2,063 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
3.72ct Radiant
£516 GBP