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Marquise|Lab Grown|IGI

1.59ct E IF Marquise Lab Grown Diamond

- • E/IF • IGI LG754595360

Certificate IGI LG754595360

Diamond specifications and retailer prices

From $641 USD
Save $2,729 USD (81%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,370 USD at Brilliant Earth
View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct 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 standard cut grade and certified by IGI LG754595360 or 754595360. Listed at 27 retailers, with prices from $641 to $3,370 at Brilliant Earth, a $2,729 spread on the same certified stone. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.59
Carat
E
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595360
Dimensions12.08 × 6.08 × 3.83 mm
L/W Ratio1.99
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
12.08 mm6.08 mm1.59 ctE / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595360
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: Sep 30
Current: $3,370 USD|Low: $511 USD|High: $3,590 USD|Avg: $1,754 USD|-6.1%
Brilliant Earth
Retailer 2
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Retailer 23
October 1, 2026
Retailer 2$717 USD
Retailer 19$830 USD
Retailer 12$908 USD
Retailer 6$991 USD
Retailer 16$1,011 USD
Retailer 21$1,185 USD
Retailer 4$1,190 USD
Retailer 8$1,230 USD
Retailer 11$1,331 USD
Retailer 3$1,339 USD
Retailer 20$1,831 USD
Retailer 23$1,856 USD
Retailer 9$1,889 USD
Retailer 22$2,316 USD
Retailer 18$2,445 USD
Retailer 15$2,566 USD
Retailer 17$2,581 USD
Retailer 14$2,601 USD
Retailer 5$2,640 USD
Retailer 10$2,733 USD
Retailer 7$2,813 USD
Retailer 13$3,170 USD
Brilliant Earth$3,370 USD

39 data points across 23 retailers

27 retailers$641 USD to $3,370 USD

A
Cheapest Retailer
-
$641 USD
A
Retailer 2
-
$697 USD
View
B+
Retailer 3
-
$717 USD
View
A
Retailer 4
-
$733 USD
View
A
Retailer 5
-
$830 USD
View
A
Retailer 6
-
$908 USD
View
A
Retailer 7
-
$991 USD
View
A
Retailer 8
-
$1,011 USD
HK$7,900 HKD
View
Price last confirmed 27 days ago
A
Retailer 9
-
$1,184 USD
£932 GBP
View
A
Retailer 10
-
$1,190 USD
€1,133 EUR
View
A
Retailer 11
-
$1,230 USD
View
A
Retailer 12
-
$1,331 USD
A$2,048 AUD
View
A
Retailer 13
-
$1,339 USD
ZAR 21,635 ZAR
View
B+
Retailer 14
-
$1,831 USD
View
B+
Retailer 15
-
$1,856 USD
A$2,856 AUD
View
B+
Retailer 16
-
$1,889 USD
View
B+
Retailer 17
-
$2,091 USD
View
B
Retailer 18
-
$2,316 USD
£1,824 GBP
View
B
Retailer 19
-
$2,445 USD
View
B+
Retailer 20
-
$2,566 USD
View
B+
Retailer 21
-
$2,581 USD
A$3,971 AUD
View
B+
Retailer 22
-
$2,601 USD
View
B
Retailer 23
-
$2,640 USD
SGD 3,568 SGD
View
B
Retailer 24
-
$2,789 USD
View
B
Retailer 25
-
$2,813 USD
View
B
Retailer 26
-
$3,170 USD
£2,496 GBP
View
Most Expensive
B
Brilliant Earth
18146309A · Sep 30
$3,370 USD
View
26 more retailers have this diamond
Prices start from $641 USDSave up to $2,729 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
1.59ct Marquise
$641 USD