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Marquise|Lab Grown|IGI

1.31ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG512231547

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG512231547

Diamond specifications and retailer prices

From $1,582 NZD
$890 USD
As of November 3, 2026
1 retailer carries this diamond
Only listing: $1,582 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512231547 or 512231547. Listed at a single retailer as of November 3, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512231547
Dimensions11.54 × 5.71 × 3.43 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.54 mm5.71 mm1.31 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512231547
Side View
Table 61.0%Crown 34.5°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 60.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: $1,582 NZD|Low: $1,332 NZD|High: $6,307 NZD|Avg: $3,728 NZD|-44.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 12, 2026
Retailer 7$1,332 NZD
Brilliant Earth$1,582 NZD
Retailer 3$1,853 NZD
Retailer 6$2,249 NZD
Retailer 10$2,832 NZD
Retailer 4$3,053 NZD
Retailer 2$3,426 NZD
Retailer 9$4,041 NZD
Retailer 5$4,959 NZD
Retailer 11$5,537 NZD
Retailer 8$5,754 NZD

79 data points across 11 retailers

1 retailer

B
Brilliant Earth
19748838A · Nov 3
$1,582 NZD
$890 USD
View

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B
1.31ct Marquise
$1,582 NZD