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Radiant|Lab Grown|IGI

4.07ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG662436739

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

Certificate IGI LG662436739

Diamond specifications and retailer prices

From €396 EUR
$442 USD
As of October 30, 2026
Save €1,462 EUR (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,857 EUR at Adiamor · As of October 31, 2026
View at Adiamor

About this 4.07ct lab-grown radiant diamond

This 4.07ct 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 LG662436739 or 662436739. Listed at 14 retailers as of October 30, 2026, with prices from €396 to €1,857, a €1,462 spread on the same certified stone. Adiamor lists it at €1,857. 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

4.07
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662436739
Dimensions11.15 × 7.88 × 5.30 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.15 mm7.88 mm4.07 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662436739
Side View
Table 65.0%Crown 44°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,857 EUR|Low: €396 EUR|High: €6,292 EUR|Avg: €1,713 EUR|+11.9%
Adiamor
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 7€396 EUR
Retailer 6€443 EUR
Retailer 12€457 EUR
Retailer 13€491 EUR
Retailer 17€538 EUR
Retailer 14€618 EUR
Retailer 5€769 EUR
Retailer 10€773 EUR
Retailer 16€798 EUR
Retailer 2€810 EUR
Retailer 11€1,318 EUR
Retailer 3€1,575 EUR
Retailer 15€1,810 EUR
Adiamor€1,857 EUR
Retailer 4€2,672 EUR
Retailer 8€4,992 EUR
Retailer 9€6,292 EUR

6 data points across 17 retailers

14 retailers€396 EUR to €1,857 EUR

A
Cheapest Retailer
-
€396 EUR
$442 USD
A
Retailer 2
-
€443 EUR
$495 USD
View
A
Retailer 3
-
€457 EUR
£402 GBP
View
A
Retailer 4
-
€491 EUR
$548 USD
View
A
Retailer 5
-
€538 EUR
HK$4,700 HKD
View
A
Retailer 6
-
€618 EUR
$690 USD
View
B+
Retailer 7
-
€769 EUR
$859 USD
View
A
Retailer 8
-
€773 EUR
View
A
Retailer 9
-
€798 EUR
$892 USD
View
A
Retailer 10
-
€810 EUR
£713 GBP
View
B+
Retailer 11
-
€1,318 EUR
$1,472 USD
View
B
Retailer 12
-
€1,575 EUR
$1,760 USD
View
B
Retailer 13
-
€1,810 EUR
£1,592 GBP
View
Most Expensive
B
Adiamor
D-82835044 · Oct 31
€1,857 EUR
$2,075 USD
View
13 more retailers have this diamond
Prices start from €396 EURSave up to €1,462 EUR

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
4.07ct Radiant
€396 EUR