Marquise|Lab Grown|IGI

4.37ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG645459455

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG645459455

Diamond specifications and retailer prices

From $16,540 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: $16,540 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 4.37ct lab-grown marquise diamond

This 4.37ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG645459455 or 645459455. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.37
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645459455
Dimensions8.88 × 16.80 × 5.31 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
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
8.88 mm16.80 mm4.37 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645459455
Side View
Table 62.0%Crown 31.5°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: $16,540 USD|Low: $5,531 USD|High: $26,690 USD|Avg: $15,507 USD|-5.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
March 25, 2026
Retailer 2$7,327 USD
Retailer 3$9,169 USD
Retailer 6$9,266 USD
Retailer 9$10,329 USD
Retailer 8$15,748 USD
Retailer 5$15,796 USD
Brilliant Earth$16,540 USD
Retailer 7$19,355 USD
Retailer 4$25,688 USD

36 data points across 9 retailers

1 retailer

B+
Brilliant Earth
10970136A · Oct 28
$16,540 USD
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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+
4.37ct Marquise
$16,540 USD