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Marquise|Lab Grown|IGI

1.14ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG750516781

Certificate IGI LG750516781

Diamond specifications and retailer prices

From £761 GBP
$1,020 USD
As of October 30, 2026
Save £933 GBP (55%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,694 GBP at Zales · As of October 30, 2026
View at Zales

About this 1.14ct lab-grown marquise diamond

This 1.14ct lab-grown marquise 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 LG750516781 or 750516781. Listed at 4 retailers as of October 30, 2026, with prices from £761 to £1,694, a £933 spread on the same certified stone. Zales lists it at £1,694. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.14
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG750516781
Dimensions10.67 × 5.42 × 3.44 mm
L/W Ratio1.97
Top View
10.67 mm5.42 mm1.14 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750516781
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £761 GBP|Low: £761 GBP|High: £1,694 GBP|Avg: £1,355 GBP|-15.0%
Retailer 1
Retailer 2
Retailer 3
Zales
September 28, 2026
Retailer 1£761 GBP
Retailer 2£1,204 GBP
Retailer 3£1,694 GBP
Zales£1,694 GBP

2 data points across 4 retailers

4 retailers£761 GBP to £1,694 GBP

B+
Cheapest Retailer
-
£761 GBP
$1,020 USD
B
Retailer 2
-
£1,204 GBP
$1,613 USD
View
B
Retailer 3
-
£1,694 GBP
$2,270 USD
View
Most Expensive
B
Zales
527247732 · Oct 30
£1,694 GBP
$2,270 USD
View
3 more retailers have this diamond
Prices start from £761 GBPSave up to £933 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.

B+
1.14ct Marquise
£761 GBP