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Marquise|Lab Grown|IGI

1.15ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG830624117

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830624117

Diamond specifications and retailer prices

From £169 GBP
$226 USD
As of October 30, 2026
Save £1,462 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,631 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.15ct lab-grown marquise diamond

This 1.15ct lab-grown marquise 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 LG830624117 or 830624117. Listed at 18 retailers as of October 28, 2026, with prices from £169 to £1,631, a £1,462 spread on the same certified stone. Rare Carat lists it at £1,631. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624117
Dimensions10.89 × 5.46 × 3.43 mm
L/W Ratio1.99
Girdle conditionFaceted
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
10.89 mm5.46 mm1.15 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624117
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,631 GBP|Low: £169 GBP|High: £1,806 GBP|Avg: £610 GBP|-0.7%
Rare Carat
Retailer 2
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Retailer 11
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Retailer 19
October 31, 2026
Retailer 5£169 GBP
Retailer 17£196 GBP
Retailer 18£197 GBP
Retailer 3£209 GBP
Retailer 6£209 GBP
Retailer 9£356 GBP
Retailer 14£359 GBP
Retailer 2£387 GBP
Retailer 15£400 GBP
Retailer 11£452 GBP
Retailer 8£531 GBP
Retailer 7£672 GBP
Retailer 16£675 GBP
Retailer 4£711 GBP
Retailer 10£781 GBP
Retailer 13£843 GBP
Retailer 19£855 GBP
Retailer 12£1,575 GBP
Rare Carat£1,631 GBP

42 data points across 19 retailers

18 retailers£169 GBP to £1,631 GBP

A+
Cheapest Retailer
-
£169 GBP
$226 USD
A
Retailer 2
-
£196 GBP
$262 USD
View
A
Retailer 3
-
£197 GBP
$264 USD
View
Final sale: no returns
A
Retailer 4
-
£209 GBP
$280 USD
View
A
Retailer 5
-
£209 GBP
$280 USD
View
A
Retailer 6
-
£356 GBP
$477 USD
View
A
Retailer 7
-
£359 GBP
ZAR 7,776 ZAR
View
A
Retailer 8
-
£387 GBP
View
A
Retailer 9
-
£400 GBP
€511 EUR
View
B+
Retailer 10
-
£531 GBP
$712 USD
View
B+
Retailer 11
-
£672 GBP
$901 USD
View
B+
Retailer 12
-
£675 GBP
$904 USD
View
B+
Retailer 13
-
£711 GBP
$953 USD
View
B+
Retailer 14
-
£781 GBP
SGD 1,414 SGD
View
B+
Retailer 15
-
£843 GBP
View
B+
Retailer 16
-
£855 GBP
$1,146 USD
View
B
Retailer 17
-
£1,575 GBP
$2,110 USD
View
Most Expensive
B
Rare Carat
PD-240631 · Oct 28
£1,631 GBP
$2,185 USD
View
17 more retailers have this diamond
Prices start from £169 GBPSave up to £1,462 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+
1.15ct Marquise
£169 GBP