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Marquise|Lab Grown|IGI

1.31ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG801682744

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801682744

Diamond specifications and retailer prices

From $210 USD
As of October 29, 2026
Save $1,120 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,330 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG801682744 or 801682744. Listed at 17 retailers as of October 28, 2026, with prices from $210 to $1,330, a $1,120 spread on the same certified stone. Brilliant Earth lists it at $1,330. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801682744
Dimensions11.67 × 5.57 × 3.55 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.67 mm5.57 mm1.31 ctG / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG801682744
Side View
Table 61.0%Crown 32.4°Girdle: THK-VTKPavilion 40.8°Culet: NoneDepth 63.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $1,330 USD|Low: $210 USD|High: $1,430 USD|Avg: $649 USD|-7.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 11$210 USD
Retailer 6$393 USD
Retailer 2$401 USD
Retailer 5$421 USD
Retailer 10$499 USD
Retailer 8$559 USD
Retailer 3$579 USD
Retailer 4$760 USD
Retailer 12$804 USD
Retailer 7$1,092 USD
Retailer 9$1,156 USD
Brilliant Earth$1,330 USD

34 data points across 12 retailers

17 retailers$210 USD to $1,330 USD

Retailer 1
-
$206 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$210 USD
View
Final sale: no returns
Retailer 3
-
$239 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$256 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
$393 USD
€374 EUR
View
A
Retailer 6
-
$401 USD
ZAR 6,475 ZAR
View
A
Retailer 7
-
$421 USD
£332 GBP
View
A
Retailer 8
-
$499 USD
View
B+
Retailer 9
-
$559 USD
View
Retailer 10
-
$579 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$760 USD
View
B
Retailer 12
-
$804 USD
View
Retailer 13
-
$823 USD
View
Price last confirmed 32 days ago
B
Retailer 14
-
$1,092 USD
£860 GBP
View
Retailer 15
-
$1,156 USD
View
Price last confirmed 8 days ago
Retailer 16
-
$1,330 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20576385A · Oct 28
$1,330 USD
View
16 more retailers have this diamond
Prices start from $210 USDSave up to $1,120 USD

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
1.31ct Marquise
$210 USD