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Radiant|Lab Grown|IGI

1.09ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG776609284

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

Certificate IGI LG776609284

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of October 30, 2026
Save £1,184 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,321 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG776609284 or 776609284. Listed at 19 retailers as of October 30, 2026, with prices from £137 to £1,321, a £1,184 spread on the same certified stone. Do Amore Diamonds lists it at £1,321. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776609284
Dimensions7.37 × 5.07 × 3.44 mm
L/W Ratio1.45
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
7.37 mm5.07 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776609284
Side View
Table 63.0%Crown 42.1°Girdle: MediumPavilion 35.7°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,321 GBP|Low: £137 GBP|High: £1,321 GBP|Avg: £486 GBP
Do Amore Diamonds
Retailer 2
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Retailer 19
November 2, 2026
Retailer 3£137 GBP
Retailer 8£154 GBP
Retailer 19£160 GBP
Retailer 4£171 GBP
Retailer 10£300 GBP
Retailer 12£325 GBP
Retailer 2£346 GBP
Retailer 7£371 GBP
Retailer 6£407 GBP
Retailer 15£460 GBP
Retailer 18£475 GBP
Retailer 5£605 GBP
Retailer 11£636 GBP
Retailer 16£704 GBP
Retailer 9£734 GBP
Retailer 14£885 GBP
Retailer 17£903 GBP
Retailer 13£1,052 GBP
Do Amore Diamonds£1,321 GBP

44 data points across 19 retailers

19 retailers£137 GBP to £1,321 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
A
Retailer 2
-
£154 GBP
$206 USD
View
Final sale: no returns
A
Retailer 3
-
£160 GBP
$214 USD
View
A
Retailer 4
-
£171 GBP
$229 USD
View
A
Retailer 5
-
£300 GBP
$402 USD
View
A
Retailer 6
-
£325 GBP
ZAR 7,036 ZAR
View
A
Retailer 7
-
£346 GBP
View
A
Retailer 8
-
£371 GBP
$497 USD
View
A
Retailer 9
-
£407 GBP
$546 USD
View
A
Retailer 10
-
£460 GBP
A$949 AUD
View
B+
Retailer 11
-
£475 GBP
$637 USD
View
B+
Retailer 12
-
£605 GBP
$811 USD
View
B+
Retailer 13
-
£636 GBP
SGD 1,152 SGD
View
Retailer 14
-
£704 GBP
A$1,452 AUD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
£734 GBP
$983 USD
View
B
Retailer 16
-
£885 GBP
View
Retailer 17
-
£903 GBP
$1,210 USD
View
Price last confirmed 14 days ago
B
Retailer 18
-
£1,052 GBP
$1,410 USD
View
Most Expensive
B
Do Amore Diamonds
27-EDEAFE901 · Nov 1
£1,321 GBP
$1,770 USD
View
18 more retailers have this diamond
Prices start from £137 GBPSave up to £1,184 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
1.09ct Radiant
£137 GBP