CaratHunter
Plans
Marquise|Lab Grown|IGI

1.51ct E FL Marquise Lab Grown Diamond

GD • E/FL • IGI LG768630028

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630028

Diamond specifications and retailer prices

From £661 GBP
$886 USD
As of October 30, 2026
Save £1,962 GBP (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,624 GBP at MOH London · As of October 29, 2026
View at MOH London

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 standard cut grade and certified by IGI LG768630028 or 768630028. Listed at 14 retailers as of October 29, 2026, with prices from £661 to £2,624, a £1,962 spread on the same certified stone. MOH London lists it at £2,624. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630028
Dimensions11.60 × 5.94 × 3.81 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
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
11.60 mm5.94 mm1.51 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630028
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.1%

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: £2,624 GBP|Low: £661 GBP|High: £3,441 GBP|Avg: £1,895 GBP|-16.8%
MOH London
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 31, 2026
Retailer 14£661 GBP
Retailer 11£809 GBP
Retailer 4£908 GBP
Retailer 3£1,052 GBP
Retailer 2£1,068 GBP
Retailer 8£1,118 GBP
Retailer 9£1,280 GBP
Retailer 13£1,785 GBP
Retailer 6£2,132 GBP
Retailer 10£2,399 GBP
Retailer 5£2,487 GBP
Retailer 7£2,523 GBP
Retailer 12£2,581 GBP
MOH London£2,624 GBP

43 data points across 14 retailers

14 retailers£661 GBP to £2,624 GBP

A
Cheapest Retailer
-
£661 GBP
$886 USD
A
Retailer 2
-
£809 GBP
$1,084 USD
View
A
Retailer 3
-
£908 GBP
HK$9,500 HKD
View
B+
Retailer 4
-
£1,052 GBP
$1,410 USD
View
B+
Retailer 5
-
£1,068 GBP
View
B+
Retailer 6
-
£1,118 GBP
€1,427 EUR
View
B+
Retailer 7
-
£1,280 GBP
ZAR 27,702 ZAR
View
Retailer 8
-
£1,785 GBP
$2,392 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
£2,132 GBP
$2,857 USD
View
B
Retailer 10
-
£2,399 GBP
$3,215 USD
View
B
Retailer 11
-
£2,487 GBP
$3,333 USD
View
B
Retailer 12
-
£2,523 GBP
$3,380 USD
View
B
Retailer 13
-
£2,581 GBP
$3,458 USD
View
Most Expensive
B
MOH London
LG768630028 · Oct 29
£2,624 GBP
View
13 more retailers have this diamond
Prices start from £661 GBPSave up to £1,962 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
1.51ct Marquise
£661 GBP