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Marquise|Lab Grown|IGI

1.57ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG800676825

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800676825

Diamond specifications and retailer prices

From £495 GBP
$663 USD
As of October 30, 2026
Save £3,901 GBP (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,396 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown marquise diamond

This 1.57ct 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 LG800676825 or 800676825. Listed at 14 retailers as of October 30, 2026, with prices from £495 to £4,396, a £3,901 spread on the same certified stone. Do Amore Diamonds lists it at £4,396. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676825
Dimensions12.19 × 5.91 × 3.81 mm
L/W Ratio2.06
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
12.19 mm5.91 mm1.57 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676825
Side View
Table 63.0%Crown 35.4°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: £4,396 GBP|Low: £495 GBP|High: £5,844 GBP|Avg: £1,694 GBP|-24.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 9£495 GBP
Retailer 14£538 GBP
Retailer 11£690 GBP
Retailer 5£718 GBP
Retailer 3£720 GBP
Retailer 6£737 GBP
Retailer 10£935 GBP
Retailer 7£1,067 GBP
Retailer 12£1,466 GBP
Retailer 13£1,781 GBP
Retailer 4£2,493 GBP
Retailer 8£2,501 GBP
Retailer 2£2,590 GBP
Do Amore Diamonds£4,396 GBP

30 data points across 14 retailers

14 retailers£495 GBP to £4,396 GBP

A
Cheapest Retailer
-
£495 GBP
$663 USD
A
Retailer 2
-
£538 GBP
$721 USD
View
A
Retailer 3
-
£690 GBP
$924 USD
View
A
Retailer 4
-
£718 GBP
$962 USD
View
A
Retailer 5
-
£720 GBP
$965 USD
View
A
Retailer 6
-
£737 GBP
$988 USD
View
Final sale: no returns
A
Retailer 7
-
£935 GBP
$1,253 USD
View
A
Retailer 8
-
£1,067 GBP
€1,361 EUR
View
B+
Retailer 9
-
£1,466 GBP
$1,964 USD
View
B+
Retailer 10
-
£1,781 GBP
$2,387 USD
View
B+
Retailer 11
-
£2,493 GBP
$3,340 USD
View
B+
Retailer 12
-
£2,501 GBP
View
B+
Retailer 13
-
£2,590 GBP
$3,470 USD
View
Most Expensive
B
Do Amore Diamonds
27-6CF66AD91 · Oct 31
£4,396 GBP
$5,890 USD
View
13 more retailers have this diamond
Prices start from £495 GBPSave up to £3,901 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
1.57ct Marquise
£495 GBP