Radiant|Lab Grown|IGI

3.99ct E VVS2 Radiant Lab Grown Diamond

ID • E/VVS2 • IGI LG837684145

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

Certificate IGI LG837684145

Diamond specifications and retailer prices

From £826 GBP
$1,100 USD
As of October 29, 2026
Save £5,775 GBP (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,601 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.99ct lab-grown radiant diamond

This 3.99ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG837684145 or 837684145. Listed at 16 retailers as of October 29, 2026, with prices from £826 to £6,601, a £5,775 spread on the same certified stone. Brilliant Earth lists it at £6,601. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.99
Carat
E
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837684145
Dimensions11.22 × 7.67 × 5.30 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.22 mm7.67 mm3.99 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837684145
Side View
Table 69.0%Crown 47°Girdle: MediumPavilion 36°Culet: NoneDepth 69.1%

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 29
Current: £6,601 GBP|Low: £732 GBP|High: £6,848 GBP|Avg: £2,622 GBP|-3.6%
Brilliant Earth
Retailer 2
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Retailer 8
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Retailer 11
Retailer 12
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Retailer 18
October 30, 2026
Retailer 17£826 GBP
Retailer 2£842 GBP
Retailer 4£937 GBP
Retailer 9£984 GBP
Retailer 18£1,109 GBP
Retailer 11£1,289 GBP
Retailer 6£1,574 GBP
Retailer 3£1,592 GBP
Retailer 10£2,121 GBP
Retailer 16£2,464 GBP
Retailer 13£2,658 GBP
Retailer 15£2,738 GBP
Retailer 5£2,936 GBP
Retailer 12£3,438 GBP
Retailer 14£4,392 GBP
Retailer 8£4,889 GBP
Retailer 7£6,469 GBP
Brilliant Earth£6,601 GBP

27 data points across 18 retailers

16 retailers£826 GBP to £6,601 GBP

A
Cheapest Retailer
-
£826 GBP
$1,100 USD
A
Retailer 2
-
£842 GBP
View
A
Retailer 3
-
£937 GBP
$1,248 USD
View
A
Retailer 4
-
£1,109 GBP
€1,407 EUR
View
A
Retailer 5
-
£1,289 GBP
$1,716 USD
View
A
Retailer 6
-
£1,574 GBP
$2,096 USD
View
Retailer 7
-
£1,592 GBP
A$3,261 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,464 GBP
$3,281 USD
View
B+
Retailer 9
-
£2,658 GBP
View
B+
Retailer 10
-
£2,738 GBP
SGD 4,928 SGD
View
Retailer 11
-
£2,936 GBP
$3,910 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£3,438 GBP
$4,578 USD
View
B
Retailer 13
-
£4,392 GBP
$5,849 USD
View
B
Retailer 14
-
£4,889 GBP
$6,510 USD
View
B
Retailer 15
-
£6,469 GBP
$8,615 USD
View
Most Expensive
B
Brilliant Earth
21816601Y · Oct 29
£6,601 GBP
$8,790 USD
View
15 more retailers have this diamond
Prices start from £826 GBPSave up to £5,775 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
3.99ct Radiant
£826 GBP