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Marquise|Lab Grown|IGI

1.93ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG843679439

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843679439

Diamond specifications and retailer prices

From £445 GBP
As of October 28, 2026
Save £506 GBP (53%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,177 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.93ct lab-grown marquise diamond

This 1.93ct 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 LG843679439 or 843679439. Listed at 3 retailers as of October 28, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.93
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843679439
Dimensions12.39 × 6.62 × 4.19 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.39 mm6.62 mm1.93 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843679439
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: £1,177 GBP|Low: £206 GBP|High: £1,237 GBP|Avg: £748 GBP|-4.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 4£206 GBP
Retailer 3£445 GBP
Retailer 2£950 GBP
Brilliant Earth£1,177 GBP

19 data points across 4 retailers

3 retailers£445 GBP to £950 GBP

A
Cheapest Retailer
-
£445 GBP
B
Retailer 2
-
£950 GBP
$1,275 USD
View
Most Expensive
Brilliant Earth
21759963A · Oct 26
£1,177 GBP
$1,580 USD
View
Price last confirmed 7 days ago
2 more retailers have this diamond
Prices start from £445 GBPSave up to £506 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
1.93ct Marquise
£445 GBP