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Marquise|Lab Grown|IGI

1.81ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG828690289

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828690289

Diamond specifications and retailer prices

From £306 GBP
$410 USD
As of October 26, 2026
2 retailers carry this diamond
Most expensive: £812 GBP at Brilliance · As of October 26, 2026
View at Brilliance

About this 1.81ct lab-grown marquise diamond

This 1.81ct 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 LG828690289 or 828690289. Listed at 2 retailers as of October 26, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828690289
Dimensions12.95 × 6.35 × 3.92 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.95 mm6.35 mm1.81 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828690289
Side View
Table 60.0%Crown 34.4°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.7%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 26
Current: £812 GBP|Low: £204 GBP|High: £1,113 GBP|Avg: £635 GBP|-6.4%
Brilliance
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 2£204 GBP
Retailer 3£306 GBP
Brilliance£812 GBP
Retailer 4£1,113 GBP

10 data points across 4 retailers

2 retailers£306 GBP to £812 GBP

Retailer 1
-
£306 GBP
$410 USD
Price last confirmed 7 days ago
Most Expensive
Brilliance
D45446285 · Oct 26
£812 GBP
$1,090 USD
View
Price last confirmed 7 days ago
1 more retailer has this diamond

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.

1.81ct Marquise
£306 GBP