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Marquise|Lab Grown|IGI

1.75ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG591389369

Certificate IGI LG591389369

Diamond specifications and retailer prices

From $1,058 USD
Save $2,842 USD (73%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,900 USD at Brilliant Earth
View at Brilliant Earth

About this 1.75ct lab-grown marquise diamond

This 1.75ct 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 LG591389369 or 591389369. Listed at 2 retailers, with prices from $1,058 to $3,900 at Brilliant Earth, a $2,842 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.75
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591389369
Dimensions12.61 × 6.40 × 3.93 mm
L/W Ratio1.97
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
12.61 mm6.40 mm1.75 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591389369
Side View
Table 57.0%Crown 35.4°Girdle: MediumPavilion 40°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $3,900 USD|Low: $839 USD|High: $5,020 USD|Avg: $2,646 USD|+0.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
September 27, 2026
Retailer 2$1,058 USD
Retailer 8$1,410 USD
Retailer 9$1,755 USD
Retailer 11$1,764 USD
Retailer 10$1,815 USD
Retailer 6$1,846 USD
Retailer 4$2,186 USD
Retailer 3$2,422 USD
Retailer 5$3,704 USD
Retailer 12$3,835 USD
Brilliant Earth$3,900 USD
Retailer 7$3,989 USD

53 data points across 12 retailers

2 retailers$1,058 USD to $3,900 USD

A
Cheapest Retailer
-
$1,058 USD
Most Expensive
B
Brilliant Earth
18970879A · Oct 1
$3,900 USD
View
1 more retailer has this diamond
Prices start from $1,058 USDSave up to $2,842 USD

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.

A
1.75ct Marquise
$1,058 USD