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Marquise|Lab Grown|IGI

1.50ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG825675124

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825675124

Diamond specifications and retailer prices

From £300 GBP
As of November 4, 2026
Save £615 GBP (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £915 GBP at With Clarity · As of November 5, 2026
View at With Clarity

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825675124 or 825675124. Listed at 8 retailers as of November 4, 2026, with prices from £300 to £915, a £615 spread on the same certified stone. With Clarity lists it at £915. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825675124
Dimensions12.13 × 6.35 × 3.53 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.13 mm6.35 mm1.50 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825675124
Side View
Table 62.0%Crown 31.1°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 55.6%

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: £419 GBP|Low: £300 GBP|High: £915 GBP|Avg: £587 GBP|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 5, 2026
Retailer 5£300 GBP
Retailer 6£359 GBP
Retailer 4£370 GBP
Retailer 1£419 GBP
Retailer 3£667 GBP
Retailer 7£756 GBP
Retailer 2£893 GBP
With Clarity£915 GBP

38 data points across 8 retailers

8 retailers£300 GBP to £915 GBP

B+
Cheapest Retailer
-
£300 GBP
A
Retailer 2
-
£359 GBP
View
Retailer 3
-
£370 GBP
View
Price last confirmed 9 days ago
A
Retailer 4
-
£419 GBP
View
B+
Retailer 5
-
£667 GBP
View
B
Retailer 6
-
£756 GBP
View
B
Retailer 7
-
£893 GBP
View
Most Expensive
B
With Clarity
825675124 · Nov 5
£915 GBP
$1,235 USD
View
7 more retailers have this diamond
Prices start from £300 GBPSave up to £615 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
£300 GBP