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Marquise|Lab Grown|IGI

1.09ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG790671715

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790671715

Diamond specifications and retailer prices

From $242 USD
As of November 4, 2026
Save $1,608 USD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,850 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.09ct lab-grown marquise diamond

This 1.09ct 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 LG790671715 or 790671715. Listed at 20 retailers as of November 4, 2026, with prices from $242 to $1,850, a $1,608 spread on the same certified stone. Brilliant Earth lists it at $1,850. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790671715
Dimensions11.36 × 5.32 × 3.23 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.36 mm5.32 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG790671715
Side View
Table 57.0%Crown 31.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.7%

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: Nov 4
Current: $1,850 USD|Low: $232 USD|High: $1,980 USD|Avg: $753 USD|-6.6%
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
November 5, 2026
Retailer 4$242 USD
Retailer 16$270 USD
Retailer 5$300 USD
Retailer 9$316 USD
Retailer 15$405 USD
Retailer 10$517 USD
Retailer 12$539 USD
Retailer 2$563 USD
Retailer 8$609 USD
Retailer 7$654 USD
Retailer 6$964 USD
Retailer 14$968 USD
Retailer 13$1,185 USD
Retailer 11$1,209 USD
Retailer 3$1,327 USD
Brilliant Earth$1,850 USD

39 data points across 16 retailers

20 retailers$242 USD to $1,850 USD

A
Cheapest Retailer
-
$242 USD
A
Retailer 2
-
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$281 USD
View
Retailer 4
-
$300 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$300 USD
View
A
Retailer 6
-
$316 USD
View
A
Retailer 7
-
$405 USD
View
A
Retailer 8
-
$517 USD
View
Retailer 9
-
$539 USD
View
Price last confirmed 11 days ago
A
Retailer 10
-
$563 USD
View
A
Retailer 11
-
$609 USD
View
B+
Retailer 12
-
$654 USD
View
B+
Retailer 13
-
$808 USD
View
B+
Retailer 14
-
$964 USD
View
B+
Retailer 15
-
$968 USD
View
B+
Retailer 16
-
$1,016 USD
View
B
Retailer 17
-
$1,185 USD
View
Retailer 18
-
$1,209 USD
View
Price last confirmed 7 days ago
B
Retailer 19
-
$1,327 USD
View
Most Expensive
B
Brilliant Earth
20608667A · Nov 4
$1,850 USD
View
19 more retailers have this diamond
Prices start from $242 USDSave up to $1,608 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
1.09ct Marquise
$242 USD