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Marquise|Lab Grown|IGI

1.74ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG843668841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843668841

Diamond specifications and retailer prices

From £194 GBP
$260 USD
As of November 1, 2026
Save £1,396 GBP (88%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,590 GBP at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

About this 1.74ct lab-grown marquise diamond

This 1.74ct 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 LG843668841 or 843668841. Listed at 3 retailers as of October 27, 2026, with prices from £194 to £1,590, a £1,396 spread on the same certified stone. Brilliant Earth lists it at £1,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.74
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843668841
Dimensions12.80 × 6.13 × 3.87 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.80 mm6.13 mm1.74 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843668841
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,590 GBP|Low: £194 GBP|High: £1,672 GBP|Avg: £825 GBP|-4.9%
Brilliant Earth
Retailer 2
Retailer 3
October 28, 2026
Retailer 3£194 GBP
Retailer 2£419 GBP
Brilliant Earth£1,590 GBP

16 data points across 3 retailers

3 retailers£194 GBP to £1,590 GBP

A
Cheapest Retailer
-
£194 GBP
$260 USD
Final sale: no returns
A
Retailer 2
-
£419 GBP
View
Most Expensive
B
Brilliant Earth
21815453A · Oct 27
£1,590 GBP
$2,130 USD
View
2 more retailers have this diamond
Prices start from £194 GBPSave up to £1,396 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
1.74ct Marquise
£194 GBP