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Marquise|Lab Grown|IGI

1.29ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG787623242

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG787623242

Diamond specifications and retailer prices

From $2,210 USD
As of November 2, 2026
2 retailers carry this diamond
Most expensive: $2,210 USD at Brilliant Earth
View at Brilliant Earth

About this 1.29ct lab-grown marquise diamond

This 1.29ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787623242 or 787623242. Listed at 2 retailers as of November 2, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787623242
Dimensions11.13 × 5.69 × 3.53 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.13 mm5.69 mm1.29 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787623242
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $2,210 USD|Low: $682 USD|High: $2,285 USD|Avg: $1,250 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 2, 2026
Retailer 7$682 USD
Retailer 11$691 USD
Retailer 2$887 USD
Retailer 8$960 USD
Retailer 4$1,008 USD
Retailer 9$1,009 USD
Retailer 6$1,017 USD
Retailer 3$1,029 USD
Retailer 10$1,941 USD
Brilliant Earth$2,210 USD
Retailer 5$2,285 USD

30 data points across 11 retailers

2 retailers

Retailer 1
-
$1,008 USD
A$1,551 AUD
Price last confirmed 80 days ago
Most Expensive
B
Brilliant Earth
19961960A · Nov 2
$2,210 USD
View
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.

B
1.29ct Marquise
$2,210 USD