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Marquise|Lab Grown|IGI

1.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG791628789

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG791628789

Diamond specifications and retailer prices

From $258 USD
As of October 30, 2026
Save $1,121 USD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,379 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG791628789 or 791628789. Listed at 23 retailers as of October 30, 2026, with prices from $258 to $1,379, a $1,121 spread on the same certified stone. Reve Diamonds lists it at $1,379. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791628789
Dimensions5.19 × 5.19 × 10.73 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.19 mm5.19 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791628789
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.2%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $258 USD|Low: $258 USD|High: $1,509 USD|Avg: $766 USD|-10.4%
Retailer 1
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Retailer 21
Reve Diamonds
October 30, 2026
Retailer 1$258 USD
Retailer 21$288 USD
Retailer 19$320 USD
Retailer 10$321 USD
Retailer 11$343 USD
Retailer 12$430 USD
Retailer 6$465 USD
Retailer 7$585 USD
Retailer 13$585 USD
Retailer 5$590 USD
Retailer 16$601 USD
Retailer 15$611 USD
Retailer 14$668 USD
Retailer 4$835 USD
Retailer 3$1,029 USD
Retailer 9$1,054 USD
Retailer 18$1,065 USD
Retailer 17$1,080 USD
Retailer 20$1,125 USD
Retailer 8$1,135 USD
Retailer 2$1,289 USD
Reve Diamonds$1,379 USD

37 data points across 22 retailers

23 retailers$258 USD to $1,379 USD

A
Cheapest Retailer
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$258 USD
A
Retailer 2
-
$288 USD
View
Final sale: no returns
A
Retailer 3
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$320 USD
View
A
Retailer 4
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$321 USD
View
A
Retailer 5
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$343 USD
View
Retailer 6
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$367 USD
View
Price last confirmed 35 days ago
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Retailer 7
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$430 USD
View
A
Retailer 8
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$465 USD
View
A
Retailer 9
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$585 USD
€557 EUR
View
A
Retailer 10
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$585 USD
View
A
Retailer 11
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$590 USD
ZAR 9,527 ZAR
View
A
Retailer 12
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$601 USD
View
A
Retailer 13
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$611 USD
£481 GBP
View
B+
Retailer 14
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$668 USD
A$1,028 AUD
View
B+
Retailer 15
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$835 USD
A$1,285 AUD
View
B+
Retailer 16
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$1,029 USD
View
B
Retailer 17
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$1,054 USD
View
B+
Retailer 18
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$1,065 USD
A$1,639 AUD
View
B+
Retailer 19
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$1,080 USD
View
B+
Retailer 20
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$1,125 USD
View
B+
Retailer 21
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$1,135 USD
View
B
Retailer 22
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$1,289 USD
£1,015 GBP
View
Most Expensive
B
Reve Diamonds
1DC68D5CB · Oct 30
$1,379 USD
View
22 more retailers have this diamond
Prices start from $258 USDSave up to $1,121 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.03ct Marquise
$258 USD