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Radiant|Lab Grown|IGI

3.06ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG757540553

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

Certificate IGI LG757540553

Diamond specifications and retailer prices

From £645 GBP
$865 USD
As of November 2, 2026
Save £4,739 GBP (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £5,384 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.06ct lab-grown radiant diamond

This 3.06ct 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 LG757540553 or 757540553. Listed at 25 retailers as of November 2, 2026, with prices from £645 to £5,384, a £4,739 spread on the same certified stone. Brilliant Earth lists it at £5,384. 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

3.06
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757540553
Dimensions10.14 × 7.19 × 4.84 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.14 mm7.19 mm3.06 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757540553
Side View
Table 66.0%Crown 42.1°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 67.3%

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: £5,384 GBP|Low: £620 GBP|High: £5,384 GBP|Avg: £1,800 GBP|+0.1%
Brilliant Earth
Retailer 2
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 3, 2026
Retailer 3£645 GBP
Retailer 7£702 GBP
Retailer 5£749 GBP
Retailer 17£880 GBP
Retailer 9£966 GBP
Retailer 16£1,092 GBP
Retailer 10£1,151 GBP
Retailer 13£1,202 GBP
Retailer 11£1,550 GBP
Retailer 14£1,690 GBP
Retailer 2£1,740 GBP
Retailer 6£2,104 GBP
Retailer 4£2,241 GBP
Retailer 8£2,537 GBP
Retailer 15£2,810 GBP
Retailer 12£3,466 GBP
Brilliant Earth£5,384 GBP

43 data points across 17 retailers

25 retailers£645 GBP to £5,384 GBP

A
Cheapest Retailer
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£645 GBP
$865 USD
A
Retailer 2
-
£702 GBP
$942 USD
View
A
Retailer 3
-
£723 GBP
$969 USD
View
Final sale: no returns
A
Retailer 4
-
£749 GBP
$1,004 USD
View
Retailer 5
-
£749 GBP
$1,004 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
£880 GBP
$1,180 USD
View
A
Retailer 7
-
£966 GBP
$1,296 USD
View
A
Retailer 8
-
£1,092 GBP
$1,465 USD
View
A
Retailer 9
-
£1,151 GBP
View
A
Retailer 10
-
£1,202 GBP
€1,535 EUR
View
A
Retailer 11
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£1,550 GBP
$2,079 USD
View
A
Retailer 12
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£1,690 GBP
A$3,487 AUD
View
A
Retailer 13
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£1,740 GBP
ZAR 37,687 ZAR
View
A
Retailer 14
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£2,068 GBP
View
A
Retailer 15
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£2,104 GBP
$2,822 USD
View
A
Retailer 16
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£2,202 GBP
$2,953 USD
View
A
Retailer 17
-
£2,241 GBP
$3,005 USD
View
A
Retailer 18
-
£2,342 GBP
$3,141 USD
View
B+
Retailer 19
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£2,473 GBP
$3,317 USD
View
B+
Retailer 20
-
£2,537 GBP
SGD 4,598 SGD
View
B+
Retailer 21
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£2,597 GBP
$3,482 USD
View
Retailer 22
-
£2,810 GBP
View
Price last confirmed 7 days ago
B+
Retailer 23
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£3,466 GBP
A$7,150 AUD
View
Retailer 24
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£4,053 GBP
$5,435 USD
View
Price last confirmed 99 days ago
Most Expensive
B
Brilliant Earth
16862485A · Nov 2
£5,384 GBP
$7,220 USD
View
24 more retailers have this diamond
Prices start from £645 GBPSave up to £4,739 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
3.06ct Radiant
£645 GBP