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Marquise|Lab Grown|IGI

1.39ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG812620146

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620146

Diamond specifications and retailer prices

From $347 USD
As of November 3, 2026
Save $1,733 USD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,080 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.39ct lab-grown marquise diamond

This 1.39ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620146 or 812620146. Listed at 23 retailers as of November 2, 2026, with prices from $347 to $2,080, a $1,733 spread on the same certified stone. Brilliant Earth lists it at $2,080. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620146
Dimensions11.11 × 5.80 × 3.63 mm
L/W Ratio1.92
Girdle conditionFaceted
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
11.11 mm5.80 mm1.39 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620146
Side View
Table 62.0%Crown 37.6°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 62.6%

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 3
Current: $2,080 USD|Low: $347 USD|High: $2,860 USD|Avg: $1,021 USD|-27.3%
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
November 3, 2026
Retailer 4$347 USD
Retailer 11$407 USD
Retailer 10$419 USD
Retailer 17$542 USD
Retailer 14$580 USD
Retailer 12$663 USD
Retailer 7$676 USD
Retailer 2$678 USD
Retailer 6$713 USD
Retailer 16$938 USD
Retailer 9$950 USD
Retailer 15$984 USD
Retailer 3$1,026 USD
Retailer 5$1,283 USD
Retailer 13$1,542 USD
Retailer 18$1,545 USD
Retailer 8$1,985 USD
Brilliant Earth$2,080 USD

31 data points across 18 retailers

23 retailers$347 USD to $2,080 USD

Retailer 1
-
$338 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$347 USD
View
Final sale: no returns
Retailer 3
-
$400 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$407 USD
£320 GBP
View
Retailer 5
-
$419 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$419 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$422 USD
View
Price last confirmed 39 days ago
A
Retailer 8
-
$542 USD
View
A
Retailer 9
-
$580 USD
View
A
Retailer 10
-
$663 USD
ZAR 10,715 ZAR
View
Retailer 11
-
$676 USD
€644 EUR
View
Price last confirmed 8 days ago
A
Retailer 12
-
$678 USD
£534 GBP
View
A
Retailer 13
-
$713 USD
View
A
Retailer 14
-
$938 USD
A$1,443 AUD
View
Retailer 15
-
$950 USD
View
Price last confirmed 10 days ago
A
Retailer 16
-
$984 USD
View
A
Retailer 17
-
$1,026 USD
View
B+
Retailer 18
-
$1,283 USD
View
Retailer 19
-
$1,346 USD
View
Price last confirmed 23 days ago
B+
Retailer 20
-
$1,542 USD
£1,214 GBP
View
B+
Retailer 21
-
$1,545 USD
View
B
Retailer 22
-
$1,985 USD
View
Most Expensive
B
Brilliant Earth
20677568A · Nov 2
$2,080 USD
View
22 more retailers have this diamond
Prices start from $347 USDSave up to $1,733 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
1.39ct Marquise
$347 USD