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Radiant|Lab Grown|IGI

1.39ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG636477056

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

Certificate IGI LG636477056

Diamond specifications and retailer prices

From £156 GBP
$209 USD
As of October 30, 2026
Save £1,635 GBP (91%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,791 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.39ct lab-grown radiant diamond

This 1.39ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG636477056 or 636477056. Listed at 26 retailers as of October 27, 2026, with prices from £156 to £1,791, a £1,635 spread on the same certified stone. Queensmith lists it at £1,791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.8°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636477056
Dimensions8.11 × 5.69 × 3.63 mm
L/W Ratio1.43
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
8.11 mm5.69 mm1.39 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636477056
Side View
Table 62.0%Crown 26.8°Girdle: MediumPavilion 33°Culet: NoneDepth 63.8%

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: Oct 30
Current: £774 GBP|Low: £152 GBP|High: £1,769 GBP|Avg: £532 GBP|-1.1%
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Retailer 23
November 1, 2026
Retailer 5£156 GBP
Retailer 14£173 GBP
Retailer 3£181 GBP
Retailer 4£193 GBP
Retailer 6£193 GBP
Retailer 12£204 GBP
Retailer 20£220 GBP
Retailer 9£267 GBP
Retailer 18£325 GBP
Retailer 21£332 GBP
Retailer 17£356 GBP
Retailer 8£380 GBP
Retailer 22£472 GBP
Retailer 23£484 GBP
Retailer 7£621 GBP
Retailer 15£629 GBP
Retailer 13£661 GBP
Retailer 11£739 GBP
Retailer 1£774 GBP
Retailer 19£896 GBP
Retailer 10£912 GBP
Retailer 2£1,276 GBP
Retailer 16£1,769 GBP

32 data points across 23 retailers

26 retailers£156 GBP to £1,791 GBP

A
Cheapest Retailer
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£156 GBP
$209 USD
A
Retailer 2
-
£173 GBP
$232 USD
View
Final sale: no returns
A
Retailer 3
-
£181 GBP
$242 USD
View
A
Retailer 4
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£193 GBP
$259 USD
View
Retailer 5
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£193 GBP
$259 USD
View
Price last confirmed 7 days ago
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Retailer 6
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£204 GBP
View
A
Retailer 7
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£220 GBP
HK$2,300 HKD
View
B+
Retailer 8
-
£267 GBP
$358 USD
View
A
Retailer 9
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£325 GBP
€415 EUR
View
A
Retailer 10
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£332 GBP
ZAR 7,182 ZAR
View
A
Retailer 11
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£356 GBP
View
A
Retailer 12
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£380 GBP
$509 USD
View
A
Retailer 13
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£472 GBP
A$973 AUD
View
A
Retailer 14
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£484 GBP
$648 USD
View
A
Retailer 15
-
£494 GBP
$662 USD
View
B+
Retailer 16
-
£621 GBP
$832 USD
View
B+
Retailer 17
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£629 GBP
SGD 1,139 SGD
View
B+
Retailer 18
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£661 GBP
$885 USD
View
B+
Retailer 19
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£739 GBP
$990 USD
View
B+
Retailer 20
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£774 GBP
View
B+
Retailer 21
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£791 GBP
View
B+
Retailer 22
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£896 GBP
A$1,848 AUD
View
B+
Retailer 23
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£912 GBP
$1,221 USD
View
Retailer 24
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£1,276 GBP
$1,710 USD
View
Price last confirmed 11 days ago
B
Retailer 25
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£1,769 GBP
$2,370 USD
View
Most Expensive
B
Queensmith
LG636477056 · Oct 27
£1,791 GBP
View
25 more retailers have this diamond
Prices start from £156 GBPSave up to £1,635 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
1.39ct Radiant
£156 GBP