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Radiant|Lab Grown|IGI

3.92ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG771653527

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

Certificate IGI LG771653527

Diamond specifications and retailer prices

From £482 GBP
$646 USD
As of October 29, 2026
Save £3,550 GBP (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,032 GBP at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 3.92ct lab-grown radiant diamond

This 3.92ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG771653527 or 771653527. Listed at 6 retailers as of October 29, 2026, with prices from £482 to £4,032, a £3,550 spread on the same certified stone. Frank Darling lists it at £4,032. 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

3.92
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771653527
Dimensions11.36 × 7.84 × 5.17 mm
L/W Ratio1.45
Culet sizePointed
Top View
11.36 mm7.84 mm3.92 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771653527
Side View
Table 67.0%Crown 47.2°Girdle: MediumPavilion 35.7°Culet: NoneDepth 65.9%

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: £4,032 GBP|Low: £291 GBP|High: £4,033 GBP|Avg: £1,548 GBP|-0.0%
Frank Darling
Retailer 2
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Retailer 8
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Retailer 11
Retailer 12
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Retailer 16
October 27, 2026
Retailer 5£291 GBP
Retailer 2£482 GBP
Retailer 14£601 GBP
Retailer 9£666 GBP
Retailer 15£707 GBP
Retailer 12£843 GBP
Retailer 10£972 GBP
Retailer 6£1,193 GBP
Retailer 16£1,531 GBP
Retailer 3£1,628 GBP
Retailer 4£1,705 GBP
Retailer 11£1,790 GBP
Retailer 7£2,332 GBP
Retailer 8£3,223 GBP
Retailer 13£3,582 GBP
Frank Darling£4,032 GBP

19 data points across 16 retailers

6 retailers£482 GBP to £4,032 GBP

A
Cheapest Retailer
-
£482 GBP
$646 USD
Final sale: no returns
B+
Retailer 2
-
£666 GBP
$892 USD
View
Retailer 3
-
£972 GBP
$1,303 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£1,790 GBP
$2,398 USD
View
Price last confirmed 25 days ago
Retailer 5
-
£2,332 GBP
A$4,807 AUD
View
Price last confirmed 119 days ago
Most Expensive
B
Frank Darling
100757865209KD · Oct 31
£4,032 GBP
$5,403 USD
View
5 more retailers have this diamond
Prices start from £482 GBPSave up to £3,550 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
3.92ct Radiant
£482 GBP