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Marquise|Lab Grown|IGI

1.56ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG792626553

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG792626553

Diamond specifications and retailer prices

From £489 GBP
$655 USD
As of October 30, 2026
Save £3,847 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,336 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG792626553 or 792626553. Listed at 11 retailers as of October 30, 2026, with prices from £489 to £4,336, a £3,847 spread on the same certified stone. Do Amore Diamonds lists it at £4,336. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792626553
Dimensions12.31 × 6.03 × 3.73 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.31 mm6.03 mm1.56 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792626553
Side View
Table 59.0%Crown 33.3°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 61.9%

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: £4,336 GBP|Low: £489 GBP|High: £6,583 GBP|Avg: £1,978 GBP|-34.1%
Do Amore Diamonds
Retailer 2
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October 31, 2026
Retailer 15£489 GBP
Retailer 11£613 GBP
Retailer 16£691 GBP
Retailer 2£698 GBP
Retailer 19£925 GBP
Retailer 7£988 GBP
Retailer 4£1,287 GBP
Retailer 9£1,292 GBP
Retailer 6£1,394 GBP
Retailer 13£1,406 GBP
Retailer 18£1,759 GBP
Retailer 3£1,873 GBP
Retailer 12£2,139 GBP
Retailer 5£2,286 GBP
Retailer 17£2,470 GBP
Retailer 20£2,478 GBP
Retailer 14£2,575 GBP
Retailer 8£3,060 GBP
Retailer 10£3,108 GBP
Do Amore Diamonds£4,336 GBP

29 data points across 20 retailers

11 retailers£489 GBP to £4,336 GBP

A
Cheapest Retailer
-
£489 GBP
$655 USD
A
Retailer 2
-
£691 GBP
View
A
Retailer 3
-
£698 GBP
$935 USD
View
A
Retailer 4
-
£925 GBP
$1,239 USD
View
B+
Retailer 5
-
£1,406 GBP
$1,884 USD
View
B+
Retailer 6
-
£1,759 GBP
$2,357 USD
View
B+
Retailer 7
-
£1,873 GBP
$2,510 USD
View
B
Retailer 8
-
£2,470 GBP
View
B+
Retailer 9
-
£2,478 GBP
$3,320 USD
View
B
Retailer 10
-
£2,575 GBP
$3,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-FAAA7C931 · Oct 31
£4,336 GBP
$5,810 USD
View
10 more retailers have this diamond
Prices start from £489 GBPSave up to £3,847 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
1.56ct Marquise
£489 GBP