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Radiant|Lab Grown|IGI

3.90ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG782650341

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

Certificate IGI LG782650341

Diamond specifications and retailer prices

From £1,798 GBP
As of October 29, 2026
Save £2,908 GBP (62%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £4,706 GBP at Diamond Wish · As of October 30, 2026
View at Diamond Wish

About this 3.9ct lab-grown radiant diamond

This 3.9ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG782650341 or 782650341. Listed at 2 retailers as of October 29, 2026, with prices from £1,798 to £4,706, a £2,908 spread on the same certified stone. Diamond Wish lists it at £4,706. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.90
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782650341
Dimensions10.59 × 7.87 × 5.29 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.59 mm7.87 mm3.90 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782650341
Side View
Table 68.0%Crown 46.9°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £4,706 GBP|Low: £390 GBP|High: £6,948 GBP|Avg: £2,277 GBP|+50.0%
Diamond Wish
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
August 25, 2026
Retailer 4£390 GBP
Retailer 5£918 GBP
Retailer 6£966 GBP
Retailer 10£972 GBP
Retailer 11£1,191 GBP
Retailer 3£1,798 GBP
Retailer 8£1,827 GBP
Retailer 9£2,001 GBP
Retailer 7£3,283 GBP
Diamond Wish£4,706 GBP
Retailer 2£6,590 GBP

65 data points across 11 retailers

2 retailers£1,798 GBP to £4,706 GBP

B+
Cheapest Retailer
-
£1,798 GBP
Most Expensive
B
Diamond Wish
LG-RD349465-GIA · Oct 30
£4,706 GBP
$6,306 USD
View
1 more retailer has this diamond
Prices start from £1,798 GBPSave up to £2,908 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.

B+
3.90ct Radiant
£1,798 GBP