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Radiant|Lab Grown|IGI

1.29ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG750596125

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

Certificate IGI LG750596125

Diamond specifications and retailer prices

From £185 GBP
$248 USD
As of October 30, 2026
Save £1,330 GBP (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,515 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.29ct lab-grown radiant diamond

This 1.29ct 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 LG750596125 or 750596125. Listed at 22 retailers as of October 30, 2026, with prices from £185 to £1,515, a £1,330 spread on the same certified stone. Brilliant Earth lists it at £1,515. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750596125
Dimensions7.77 × 5.31 × 3.67 mm
L/W Ratio1.46
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
7.77 mm5.31 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750596125
Side View
Table 59.0%Crown 36.5°Girdle: Slightly ThickPavilion 36.2°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
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: £1,515 GBP|Low: £178 GBP|High: £1,843 GBP|Avg: £562 GBP|-17.8%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 1, 2026
Retailer 17£185 GBP
Retailer 9£207 GBP
Retailer 5£215 GBP
Retailer 6£230 GBP
Retailer 18£230 GBP
Retailer 11£381 GBP
Retailer 4£386 GBP
Retailer 12£395 GBP
Retailer 8£410 GBP
Retailer 2£433 GBP
Retailer 13£559 GBP
Retailer 3£739 GBP
Retailer 16£742 GBP
Retailer 7£742 GBP
Retailer 10£899 GBP
Retailer 14£922 GBP
Retailer 15£1,093 GBP
Brilliant Earth£1,515 GBP

44 data points across 18 retailers

22 retailers£185 GBP to £1,515 GBP

A
Cheapest Retailer
-
£185 GBP
$248 USD
A
Retailer 2
-
£207 GBP
$277 USD
View
Final sale: no returns
A
Retailer 3
-
£215 GBP
$288 USD
View
A
Retailer 4
-
£230 GBP
$308 USD
View
A
Retailer 5
-
£230 GBP
$308 USD
View
A
Retailer 6
-
£258 GBP
HK$2,700 HKD
View
A
Retailer 7
-
£381 GBP
€486 EUR
View
A
Retailer 8
-
£386 GBP
$517 USD
View
A
Retailer 9
-
£395 GBP
ZAR 8,549 ZAR
View
A
Retailer 10
-
£410 GBP
$549 USD
View
A
Retailer 11
-
£433 GBP
View
A
Retailer 12
-
£559 GBP
A$1,153 AUD
View
B+
Retailer 13
-
£656 GBP
$879 USD
View
B+
Retailer 14
-
£739 GBP
$990 USD
View
B+
Retailer 15
-
£742 GBP
$994 USD
View
B+
Retailer 16
-
£742 GBP
SGD 1,344 SGD
View
B+
Retailer 17
-
£778 GBP
$1,042 USD
View
B+
Retailer 18
-
£899 GBP
View
B+
Retailer 19
-
£922 GBP
View
B
Retailer 20
-
£1,006 GBP
$1,348 USD
View
Retailer 21
-
£1,093 GBP
$1,465 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
19055906A · Oct 31
£1,515 GBP
$2,030 USD
View
21 more retailers have this diamond
Prices start from £185 GBPSave up to £1,330 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
1.29ct Radiant
£185 GBP