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Marquise|Lab Grown|IGI

1.53ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG685515714

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG685515714

Diamond specifications and retailer prices

From $3,700 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $3,700 USD 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 1.53ct lab-grown marquise diamond

This 1.53ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG685515714 or 685515714. Listed at a single retailer as of October 30, 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

1.53
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685515714
Dimensions11.67 × 6.10 × 3.75 mm
L/W Ratio1.91
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
11.67 mm6.10 mm1.53 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685515714
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 61.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $3,700 USD|Low: $1,054 USD|High: $4,120 USD|Avg: $2,393 USD|+4.5%
Brilliant Earth
Retailer 2
Retailer 3
February 3, 2026
Retailer 2$1,054 USD
Retailer 3$2,392 USD
Brilliant Earth$3,700 USD

25 data points across 3 retailers

1 retailer

B
Brilliant Earth
15000743A · Oct 30
$3,700 USD
View

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B
1.53ct Marquise
$3,700 USD