CaratHunter
Plans
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 $1,243 CAD
$890 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $1,243 CAD 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 October 31, 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
Color
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

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,243 CAD|Low: $1,046 CAD|High: $4,955 CAD|Avg: $2,929 CAD|-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$1,046 CAD
Brilliant Earth$1,243 CAD
Retailer 3$1,456 CAD
Retailer 6$1,767 CAD
Retailer 10$2,225 CAD
Retailer 4$2,398 CAD
Retailer 2$2,691 CAD
Retailer 9$3,175 CAD
Retailer 5$3,896 CAD
Retailer 11$4,350 CAD
Retailer 8$4,521 CAD

79 data points across 11 retailers

1 retailer

B
Brilliant Earth
19748838A · Oct 31
$1,243 CAD
$890 USD
View

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.

B
1.31ct Marquise
$1,243 CAD