Marquise|Lab Grown|IGI

1.01ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG628437391

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628437391

Diamond specifications and retailer prices

From $237 USD
As of October 31, 2026
Save $1,183 USD (83%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $1,420 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.01ct lab-grown marquise diamond

This 1.01ct 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 LG628437391 or 628437391. Listed at 27 retailers as of October 31, 2026, with prices from $237 to $1,420, a $1,183 spread on the same certified stone. Brilliant Earth lists it at $1,420. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628437391
Dimensions10.97 × 5.13 × 3.18 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
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
10.97 mm5.13 mm1.01 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628437391
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $1,420 USD|Low: $212 USD|High: $1,730 USD|Avg: $664 USD|-17.9%
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 8$212 USD
Retailer 15$237 USD
Retailer 5$263 USD
Retailer 4$307 USD
Retailer 3$370 USD
Retailer 16$445 USD
Retailer 18$451 USD
Retailer 13$486 USD
Retailer 20$498 USD
Retailer 9$564 USD
Retailer 6$565 USD
Retailer 14$580 USD
Retailer 17$629 USD
Retailer 10$741 USD
Retailer 19$847 USD
Retailer 7$897 USD
Retailer 12$947 USD
Retailer 11$1,037 USD
Retailer 2$1,053 USD
Retailer 21$1,231 USD
Brilliant Earth$1,420 USD

38 data points across 21 retailers

27 retailers$237 USD to $1,420 USD

Retailer 1
-
$212 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$237 USD
View
Final sale: no returns
Retailer 3
-
$252 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$263 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$263 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$292 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$307 USD
HK$2,400 HKD
View
Retailer 8
-
$308 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$370 USD
View
A
Retailer 10
-
$445 USD
€424 EUR
View
A
Retailer 11
-
$451 USD
ZAR 7,290 ZAR
View
A
Retailer 12
-
$486 USD
£382 GBP
View
A
Retailer 13
-
$498 USD
View
Retailer 14
-
$564 USD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$565 USD
View
B+
Retailer 16
-
$629 USD
A$968 AUD
View
B+
Retailer 17
-
$741 USD
SGD 1,002 SGD
View
B+
Retailer 18
-
$844 USD
View
Retailer 19
-
$844 USD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$847 USD
View
B+
Retailer 21
-
$897 USD
View
B+
Retailer 22
-
$947 USD
View
Retailer 23
-
$1,004 USD
View
Price last confirmed 31 days ago
Retailer 24
-
$1,037 USD
A$1,595 AUD
View
Price last confirmed 24 days ago
B+
Retailer 25
-
$1,053 USD
£829 GBP
View
B
Retailer 26
-
$1,231 USD
View
Most Expensive
B
Brilliant Earth
9949773A · Oct 31
$1,420 USD
View
26 more retailers have this diamond
Prices start from $237 USDSave up to $1,183 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
1.01ct Marquise
$237 USD