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Marquise|Lab Grown|IGI

1.00ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG823613031

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823613031

Diamond specifications and retailer prices

From $363 SGD
As of November 5, 2026
Save $1,503 SGD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,866 SGD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1ct lab-grown marquise diamond

This 1ct 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 LG823613031 or 823613031. Listed at 23 retailers as of November 3, 2026, with prices from $363 to $1,866, a $1,503 spread on the same certified stone. Brilliant Earth lists it at $1,866. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823613031
Dimensions10.43 × 5.22 × 3.25 mm
L/W Ratio2.00
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
10.43 mm5.22 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823613031
Side View
Table 62.0%Crown 35.9°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 62.3%

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: Nov 5
Current: $1,866 SGD|Low: $363 SGD|High: $2,121 SGD|Avg: $1,040 SGD|-12.0%
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
November 5, 2026
Retailer 5$363 SGD
Retailer 10$426 SGD
Retailer 6$543 SGD
Retailer 14$607 SGD
Retailer 17$690 SGD
Retailer 12$695 SGD
Retailer 3$730 SGD
Retailer 2$757 SGD
Retailer 15$958 SGD
Retailer 11$988 SGD
Retailer 8$1,084 SGD
Retailer 9$1,362 SGD
Retailer 4$1,393 SGD
Retailer 16$1,577 SGD
Retailer 13$1,615 SGD
Retailer 7$1,747 SGD
Brilliant Earth$1,866 SGD

31 data points across 17 retailers

23 retailers$363 SGD to $1,866 SGD

Retailer 1
-
$247 SGD
Price last confirmed 34 days ago
Retailer 2
-
$299 SGD
View
Price last confirmed 37 days ago
Retailer 3
-
$319 SGD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$363 SGD
View
Final sale: no returns
Retailer 5
-
$415 SGD
View
Price last confirmed 28 days ago
A
Retailer 6
-
$426 SGD
View
A
Retailer 7
-
$543 SGD
View
A
Retailer 8
-
$607 SGD
View
Retailer 9
-
$690 SGD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$695 SGD
View
A
Retailer 11
-
$730 SGD
View
A
Retailer 12
-
$757 SGD
View
B+
Retailer 13
-
$958 SGD
View
B+
Retailer 14
-
$988 SGD
View
B+
Retailer 15
-
$1,084 SGD
View
Retailer 16
-
$1,288 SGD
View
Price last confirmed 84 days ago
Retailer 17
-
$1,334 SGD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$1,362 SGD
View
B
Retailer 19
-
$1,393 SGD
View
B
Retailer 20
-
$1,577 SGD
View
B
Retailer 21
-
$1,615 SGD
View
B
Retailer 22
-
$1,747 SGD
View
Most Expensive
B
Brilliant Earth
20997943A · Nov 3
$1,866 SGD
$1,460 USD
View
22 more retailers have this diamond
Prices start from $363 SGDSave up to $1,503 SGD

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
1.00ct Marquise
$363 SGD