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Marquise|Lab Grown|IGI

1.05ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG811619626

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619626

Diamond specifications and retailer prices

From $409 USD
As of October 27, 2026
Save $1,821 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,230 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811619626 or 811619626. Listed at 21 retailers as of October 27, 2026, with prices from $409 to $2,230, a $1,821 spread on the same certified stone. Brilliant Earth lists it at $2,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619626
Dimensions10.92 × 5.27 × 3.25 mm
L/W Ratio2.07
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
10.92 mm5.27 mm1.05 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619626
Side View
Table 60.0%Crown 32.4°Girdle: THN-STKPavilion 40.5°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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 27
Current: $2,230 USD|Low: $392 USD|High: $2,230 USD|Avg: $931 USD
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
October 29, 2026
Retailer 3$409 USD
Retailer 9$458 USD
Retailer 15$458 USD
Retailer 16$507 USD
Retailer 17$507 USD
Retailer 14$630 USD
Retailer 6$680 USD
Retailer 8$730 USD
Retailer 10$804 USD
Retailer 12$805 USD
Retailer 2$831 USD
Retailer 13$871 USD
Retailer 5$1,217 USD
Retailer 7$1,342 USD
Retailer 4$1,630 USD
Retailer 11$1,991 USD
Brilliant Earth$2,230 USD

42 data points across 17 retailers

21 retailers$409 USD to $2,230 USD

A
Cheapest Retailer
-
$409 USD
A
Retailer 2
-
$458 USD
View
Final sale: no returns
A
Retailer 3
-
$458 USD
View
A
Retailer 4
-
$507 USD
View
A
Retailer 5
-
$507 USD
View
A
Retailer 6
-
$630 USD
View
A
Retailer 7
-
$672 USD
View
A
Retailer 8
-
$680 USD
View
B+
Retailer 9
-
$730 USD
View
B+
Retailer 10
-
$804 USD
€766 EUR
View
B+
Retailer 11
-
$805 USD
A$1,238 AUD
View
B+
Retailer 12
-
$831 USD
£654 GBP
View
B+
Retailer 13
-
$871 USD
ZAR 14,073 ZAR
View
B
Retailer 14
-
$1,217 USD
View
B
Retailer 15
-
$1,342 USD
SGD 1,814 SGD
View
B
Retailer 16
-
$1,478 USD
£1,164 GBP
View
B
Retailer 17
-
$1,630 USD
View
B
Retailer 18
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$1,664 USD
View
B
Retailer 19
-
$1,860 USD
View
B
Retailer 20
-
$1,991 USD
£1,568 GBP
View
Most Expensive
B
Brilliant Earth
20986651A · Oct 28
$2,230 USD
View
20 more retailers have this diamond
Prices start from $409 USDSave up to $1,821 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
1.05ct Marquise
$409 USD