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Marquise|Lab Grown|IGI

1.59ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG790656718

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790656718

Diamond specifications and retailer prices

From $658 AUD
$462 USD
As of October 30, 2026
Save $3,826 AUD (85%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $4,484 AUD at Brilliant Earth · As of October 28, 2026
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 top-tier cut grade and certified by IGI LG790656718 or 790656718. Listed at 30 retailers as of October 28, 2026, with prices from $658 to $4,484, a $3,826 spread on the same certified stone. Brilliant Earth lists it at $4,484. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790656718
Dimensions12.27 × 6.12 × 12.27 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.27 mm6.12 mm1.59 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790656718
Side View
Table 57.0%Crown 32.8°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,484 AUD|Low: $736 AUD|High: $4,498 AUD|Avg: $2,146 AUD|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 30, 2026
Retailer 24$736 AUD
Retailer 18$766 AUD
Retailer 6$816 AUD
Retailer 23$893 AUD
Retailer 20$1,018 AUD
Retailer 10$1,096 AUD
Retailer 9$1,263 AUD
Retailer 21$1,299 AUD
Retailer 3$1,330 AUD
Retailer 2$1,351 AUD
Retailer 19$1,401 AUD
Retailer 7$1,665 AUD
Retailer 4$1,889 AUD
Retailer 13$1,899 AUD
Retailer 15$2,386 AUD
Retailer 12$2,591 AUD
Retailer 8$2,622 AUD
Retailer 14$2,665 AUD
Retailer 5$2,862 AUD
Retailer 11$2,889 AUD
Retailer 22$2,999 AUD
Retailer 17$3,388 AUD
Retailer 16$3,552 AUD
Brilliant Earth$4,484 AUD

30 data points across 24 retailers

30 retailers$658 AUD to $4,484 AUD

A+
Cheapest Retailer
-
$658 AUD
$462 USD
A
Retailer 2
-
$736 AUD
$517 USD
View
A
Retailer 3
-
$766 AUD
$538 USD
View
Final sale: no returns
Retailer 4
-
$816 AUD
$573 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$816 AUD
$573 USD
View
A
Retailer 6
-
$893 AUD
HK$4,900 HKD
View
A
Retailer 7
-
$1,018 AUD
$715 USD
View
A
Retailer 8
-
$1,096 AUD
$770 USD
View
A
Retailer 9
-
$1,263 AUD
$887 USD
View
A
Retailer 10
-
$1,299 AUD
€869 EUR
View
A
Retailer 11
-
$1,330 AUD
View
A
Retailer 12
-
$1,351 AUD
£747 GBP
View
A
Retailer 13
-
$1,401 AUD
ZAR 15,906 ZAR
View
A
Retailer 14
-
$1,665 AUD
$1,170 USD
View
A
Retailer 15
-
$1,889 AUD
$1,327 USD
View
A
Retailer 16
-
$1,899 AUD
View
A
Retailer 17
-
$2,386 AUD
£1,320 GBP
View
B+
Retailer 18
-
$2,591 AUD
SGD 2,460 SGD
View
B+
Retailer 19
-
$2,622 AUD
$1,842 USD
View
B+
Retailer 20
-
$2,665 AUD
$1,872 USD
View
B+
Retailer 21
-
$2,743 AUD
$1,927 USD
View
B+
Retailer 22
-
$2,862 AUD
$2,011 USD
View
B+
Retailer 23
-
$2,889 AUD
$2,030 USD
View
B+
Retailer 24
-
$2,999 AUD
£1,659 GBP
View
Retailer 25
-
$3,214 AUD
$2,258 USD
View
Price last confirmed 50 days ago
Retailer 26
-
$3,388 AUD
$2,380 USD
View
Price last confirmed 22 days ago
B+
Retailer 27
-
$3,489 AUD
£1,930 GBP
View
Retailer 28
-
$3,552 AUD
View
Price last confirmed 22 days ago
Retailer 29
-
$4,484 AUD
$3,150 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20473735A · Oct 28
$4,484 AUD
$3,150 USD
View
29 more retailers have this diamond
Prices start from $658 AUDSave up to $3,826 AUD

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.

A+
1.59ct Marquise
$658 AUD