Radiant|Lab Grown|IGI

4.03ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG681578769

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

Certificate IGI LG681578769

Diamond specifications and retailer prices

From £3,239 GBP
$4,340 USD
As of October 24, 2026
Save £2,858 GBP (47%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £14,807 GBP at Do Amore Diamonds · As of October 23, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578769 or 681578769. Listed at 28 retailers as of October 24, 2026, with a 88% 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578769
Dimensions11.48 × 7.97 × 5.20 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.48 mm7.97 mm4.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578769
Side View
Table 61.0%Crown 43.3°Girdle: MED-STKPavilion 33.3°Culet: NoneDepth 65.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: £14,807 GBP|Low: £2,152 GBP|High: £14,807 GBP|Avg: £5,661 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 11
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Retailer 22
October 29, 2026
Retailer 5£2,152 GBP
Retailer 10£2,519 GBP
Retailer 22£2,616 GBP
Retailer 7£2,812 GBP
Retailer 20£3,239 GBP
Retailer 11£3,439 GBP
Retailer 21£3,588 GBP
Retailer 13£3,707 GBP
Retailer 6£4,172 GBP
Retailer 19£4,413 GBP
Retailer 16£4,605 GBP
Retailer 14£4,766 GBP
Retailer 18£5,801 GBP
Retailer 2£6,098 GBP
Retailer 9£6,289 GBP
Retailer 8£6,875 GBP
Retailer 17£7,023 GBP
Retailer 12£7,279 GBP
Retailer 4£7,743 GBP
Retailer 15£9,632 GBP
Retailer 3£9,967 GBP
Do Amore Diamonds£14,807 GBP

35 data points across 22 retailers

28 retailers£3,239 GBP to £6,098 GBP

Retailer 1
-
£2,152 GBP
$2,884 USD
Price last confirmed 8 days ago
Retailer 2
-
£2,152 GBP
$2,884 USD
View
Price last confirmed 22 days ago
Retailer 3
-
£2,299 GBP
$3,080 USD
View
Price last confirmed 30 days ago
Retailer 4
-
£2,497 GBP
$3,346 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£2,501 GBP
$3,351 USD
View
Price last confirmed 33 days ago
Retailer 6
-
£2,519 GBP
$3,375 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£2,616 GBP
$3,505 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£2,630 GBP
$3,524 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
£3,239 GBP
$4,340 USD
View
A
Retailer 10
-
£3,439 GBP
HK$36,000 HKD
View
Retailer 11
-
£3,444 GBP
$4,615 USD
View
Price last confirmed 20 days ago
Retailer 12
-
£3,444 GBP
$4,615 USD
View
Price last confirmed 8 days ago
Retailer 13
-
£3,588 GBP
$4,807 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£3,678 GBP
$4,928 USD
View
Price last confirmed 29 days ago
Retailer 15
-
£3,707 GBP
View
Price last confirmed 7 days ago
Retailer 16
-
£4,172 GBP
$5,590 USD
View
Price last confirmed 9 days ago
Retailer 17
-
£4,631 GBP
$6,205 USD
View
Price last confirmed 9 days ago
Retailer 18
-
£4,766 GBP
View
Price last confirmed 8 days ago
Retailer 19
-
£5,801 GBP
ZAR 125,573 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 20
-
£6,098 GBP
$8,170 USD
View
Retailer 21
-
£6,289 GBP
$8,427 USD
View
Price last confirmed 8 days ago
Retailer 22
-
£6,875 GBP
$9,212 USD
View
Price last confirmed 9 days ago
Retailer 23
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£7,023 GBP
View
Price last confirmed 9 days ago
Retailer 24
-
£7,279 GBP
$9,753 USD
View
Price last confirmed 8 days ago
Retailer 25
-
£7,743 GBP
A$15,961 AUD
View
Price last confirmed 21 days ago
Retailer 26
-
£9,632 GBP
$12,905 USD
View
Price last confirmed 8 days ago
Retailer 27
-
£9,967 GBP
SGD 18,046 SGD
View
Price last confirmed 9 days ago
Most Expensive
Do Amore Diamonds
27-793450409 · Oct 23
£14,807 GBP
$19,840 USD
View
Price last confirmed 7 days ago
27 more retailers have this diamond
Prices start from £3,239 GBPSave up to £2,858 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
£3,239 GBP