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Round|Lab Grown|IGI

1.09ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG700515159

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700515159

Diamond specifications and retailer prices

From £214 GBP
$287 USD
As of October 30, 2026
Save £838 GBP (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,052 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700515159 or 700515159. Listed at 24 retailers as of October 30, 2026, with prices from £214 to £1,052, a £838 spread on the same certified stone. Brilliant Earth lists it at £1,052. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700515159
Dimensions6.56 × 6.58 × 4.07 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.56 mm6.58 mm1.09 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700515159
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.0%

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: £1,052 GBP|Low: £184 GBP|High: £1,717 GBP|Avg: £552 GBP|-38.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 13£192 GBP
Retailer 4£237 GBP
Retailer 5£237 GBP
Retailer 3£319 GBP
Retailer 11£321 GBP
Retailer 8£385 GBP
Retailer 10£408 GBP
Retailer 6£452 GBP
Retailer 7£455 GBP
Retailer 12£730 GBP
Retailer 2£913 GBP
Retailer 9£957 GBP
Brilliant Earth£1,052 GBP

35 data points across 13 retailers

24 retailers£214 GBP to £1,052 GBP

Retailer 1
-
£192 GBP
$257 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£214 GBP
$287 USD
View
Final sale: no returns
Retailer 3
-
£222 GBP
$298 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£237 GBP
$318 USD
View
Price last confirmed 28 days ago
Retailer 5
-
£237 GBP
$318 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
£237 GBP
$318 USD
View
A
Retailer 7
-
£237 GBP
$318 USD
View
A
Retailer 8
-
£319 GBP
$428 USD
View
A
Retailer 9
-
£321 GBP
$430 USD
View
A
Retailer 10
-
£385 GBP
View
A
Retailer 11
-
£407 GBP
$546 USD
View
A
Retailer 12
-
£408 GBP
ZAR 8,837 ZAR
View
B+
Retailer 13
-
£421 GBP
$564 USD
View
B+
Retailer 14
-
£452 GBP
View
B+
Retailer 15
-
£455 GBP
A$938 AUD
View
B+
Retailer 16
-
£636 GBP
SGD 1,152 SGD
View
B
Retailer 17
-
£730 GBP
$978 USD
View
Retailer 18
-
£763 GBP
$1,023 USD
View
Price last confirmed 31 days ago
B
Retailer 19
-
£802 GBP
$1,075 USD
View
B
Retailer 20
-
£913 GBP
€1,165 EUR
View
B
Retailer 21
-
£921 GBP
View
B
Retailer 22
-
£957 GBP
View
B
Retailer 23
-
£1,026 GBP
$1,375 USD
View
Most Expensive
B
Brilliant Earth
15235399A · Oct 30
£1,052 GBP
$1,410 USD
View
23 more retailers have this diamond
Prices start from £214 GBPSave up to £838 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 Round
£214 GBP