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Radiant|Lab Grown|IGI

4.03ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG815648612

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

Certificate IGI LG815648612

Diamond specifications and retailer prices

From £881 GBP
$1,182 USD
As of November 2, 2026
Save £3,120 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,824 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.03ct lab-grown radiant diamond

This 4.03ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815648612 or 815648612. Listed at 17 retailers as of October 31, 2026, with a 354% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.03
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815648612
Dimensions13.14 × 7.32 × 4.74 mm
L/W Ratio1.80
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.14 mm7.32 mm4.03 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815648612
Side View
Table 69.0%Crown 43.8°Girdle: STK-THKPavilion 32.1°Culet: NoneDepth 64.8%

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: Nov 2
Current: £1,590 GBP|Low: £846 GBP|High: £3,673 GBP|Avg: £1,981 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11£881 GBP
Retailer 4£958 GBP
Retailer 12£1,022 GBP
Retailer 10£1,151 GBP
Retailer 9£1,438 GBP
Retailer 1£1,590 GBP
Retailer 3£2,014 GBP
Retailer 2£2,114 GBP
Retailer 8£2,401 GBP
Retailer 7£2,417 GBP
Retailer 5£2,726 GBP
Retailer 13£2,932 GBP
Retailer 6£3,624 GBP

46 data points across 13 retailers

17 retailers£881 GBP to £4,001 GBP

A
Cheapest Retailer
-
£881 GBP
$1,182 USD
A
Retailer 2
-
£958 GBP
$1,286 USD
View
A
Retailer 3
-
£997 GBP
$1,338 USD
View
A
Retailer 4
-
£1,022 GBP
$1,371 USD
View
Retailer 5
-
£1,022 GBP
$1,371 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£1,151 GBP
$1,545 USD
View
B+
Retailer 7
-
£1,438 GBP
$1,930 USD
View
B+
Retailer 8
-
£1,590 GBP
View
B
Retailer 9
-
£2,014 GBP
$2,702 USD
View
B
Retailer 10
-
£2,114 GBP
$2,837 USD
View
B+
Retailer 11
-
£2,401 GBP
ZAR 52,048 ZAR
View
B
Retailer 12
-
£2,417 GBP
A$4,989 AUD
View
B
Retailer 13
-
£2,726 GBP
View
B
Retailer 14
-
£2,932 GBP
$3,935 USD
View
B
Retailer 15
-
£3,624 GBP
View
B
Retailer 16
-
£4,001 GBP
$5,369 USD
View
Most Expensive
Do Amore Diamonds
27-546075DF0 · Nov 2
£7,824 GBP
$10,500 USD
View
Price under review
16 more retailers have this diamond
Prices start from £881 GBPSave up to £3,120 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
4.03ct Radiant
£881 GBP