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Marquise|Lab Grown|IGI

1.50ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG838647497

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838647497

Diamond specifications and retailer prices

From £185 GBP
As of November 4, 2026
Save £1,591 GBP (90%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,776 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838647497 or 838647497. Listed at 7 retailers as of November 4, 2026, with prices from £185 to £1,776, a £1,591 spread on the same certified stone. Do Amore Diamonds lists it at £1,776. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838647497
Dimensions12.07 × 6.04 × 3.55 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm6.04 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838647497
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 58.8%

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: Nov 4
Current: £1,776 GBP|Low: £322 GBP|High: £1,776 GBP|Avg: £835 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 2£322 GBP
Retailer 5£384 GBP
Retailer 4£704 GBP
Retailer 3£1,014 GBP
Do Amore Diamonds£1,776 GBP

16 data points across 5 retailers

7 retailers£185 GBP to £1,776 GBP

A
Cheapest Retailer
-
£185 GBP
A
Retailer 2
-
£322 GBP
View
B+
Retailer 3
-
£384 GBP
View
B
Retailer 4
-
£704 GBP
View
B
Retailer 5
-
£1,014 GBP
View
B
Retailer 6
-
£1,271 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C91D2DA6C · Nov 4
£1,776 GBP
$2,390 USD
View
6 more retailers have this diamond
Prices start from £185 GBPSave up to £1,591 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
1.50ct Marquise
£185 GBP