CaratHunter
Plans
Marquise|Lab Grown|IGI

1.53ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818683546

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818683546

Diamond specifications and retailer prices

From £860 GBP
HK$9,000 HKD
As of October 30, 2026
Save £1,834 GBP (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,694 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.53ct lab-grown marquise diamond

This 1.53ct 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 LG818683546 or 818683546. Listed at 10 retailers as of October 30, 2026, with prices from £860 to £2,694, a £1,834 spread on the same certified stone. Brilliant Earth lists it at £2,694. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683546
Dimensions11.66 × 6.00 × 3.79 mm
L/W Ratio1.94
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
11.66 mm6.00 mm1.53 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683546
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

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: £2,694 GBP|Low: £860 GBP|High: £3,561 GBP|Avg: £1,890 GBP|-7.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5£860 GBP
Retailer 7£907 GBP
Retailer 8£1,066 GBP
Retailer 2£1,082 GBP
Retailer 4£1,128 GBP
Retailer 6£1,809 GBP
Retailer 10£2,441 GBP
Retailer 3£2,657 GBP
Retailer 9£2,671 GBP
Brilliant Earth£2,694 GBP

32 data points across 10 retailers

10 retailers£860 GBP to £2,694 GBP

A
Cheapest Retailer
-
£860 GBP
HK$9,000 HKD
A
Retailer 2
-
£907 GBP
$1,215 USD
View
A
Retailer 3
-
£1,066 GBP
$1,428 USD
View
A
Retailer 4
-
£1,082 GBP
View
A
Retailer 5
-
£1,128 GBP
€1,440 EUR
View
Retailer 6
-
£1,809 GBP
$2,424 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£2,441 GBP
$3,270 USD
View
B
Retailer 8
-
£2,657 GBP
View
B
Retailer 9
-
£2,671 GBP
$3,579 USD
View
Most Expensive
B
Brilliant Earth
21582528A · Oct 30
£2,694 GBP
$3,610 USD
View
9 more retailers have this diamond
Prices start from £860 GBPSave up to £1,834 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
1.53ct Marquise
£860 GBP