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Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG799630374

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799630374

Diamond specifications and retailer prices

From £1,409 GBP
$1,888 USD
As of October 30, 2026
Save £3,314 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,723 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.51ct lab-grown marquise diamond

This 1.51ct 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 LG799630374 or 799630374. Listed at 14 retailers as of October 30, 2026, with prices from £1,409 to £4,723, a £3,314 spread on the same certified stone. With Clarity lists it at £4,723. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799630374
Dimensions11.60 × 5.99 × 3.75 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm5.99 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799630374
Side View
Table 62.0%Crown 36.2°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 62.6%

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: £1,682 GBP|Low: £1,297 GBP|High: £3,753 GBP|Avg: £2,298 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11£1,297 GBP
Retailer 3£1,409 GBP
Retailer 1£1,682 GBP
Retailer 4£1,831 GBP
Retailer 8£1,855 GBP
Retailer 7£2,135 GBP
Retailer 5£2,384 GBP
Retailer 9£2,455 GBP
Retailer 10£2,911 GBP
Retailer 2£3,330 GBP
Retailer 6£3,724 GBP

45 data points across 11 retailers

14 retailers£1,409 GBP to £4,723 GBP

Retailer 1
-
£1,297 GBP
$1,738 USD
Price last confirmed 18 days ago
B+
Retailer 2
-
£1,409 GBP
$1,888 USD
View
B+
Retailer 3
-
£1,682 GBP
A$3,468 AUD
View
B+
Retailer 4
-
£1,831 GBP
View
B+
Retailer 5
-
£1,855 GBP
$2,485 USD
View
B+
Retailer 6
-
£2,135 GBP
€2,725 EUR
View
B+
Retailer 7
-
£2,384 GBP
ZAR 51,605 ZAR
View
B
Retailer 8
-
£2,455 GBP
$3,290 USD
View
B
Retailer 9
-
£2,911 GBP
$3,900 USD
View
B
Retailer 10
-
£3,330 GBP
$4,462 USD
View
B
Retailer 11
-
£3,495 GBP
$4,683 USD
View
B
Retailer 12
-
£3,724 GBP
View
B
Retailer 13
-
£4,561 GBP
$6,111 USD
View
Most Expensive
B
With Clarity
799630374 · Oct 30
£4,723 GBP
$6,328 USD
View
13 more retailers have this diamond
Prices start from £1,409 GBPSave up to £3,314 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+
1.51ct Marquise
£1,409 GBP