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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG825640531

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825640531

Diamond specifications and retailer prices

From $321 SGD
As of November 4, 2026
Save $2,184 SGD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,505 SGD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct 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 LG825640531 or 825640531. Listed at 22 retailers as of November 3, 2026, with prices from $321 to $2,505, a $2,184 spread on the same certified stone. Brilliant Earth lists it at $2,505. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825640531
Dimensions10.66 × 5.58 × 3.52 mm
L/W Ratio1.91
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
10.66 mm5.58 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825640531
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

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: $749 SGD|Low: $321 SGD|High: $2,032 SGD|Avg: $1,021 SGD|-37.5%
Retailer 1
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 4, 2026
Retailer 5$321 SGD
Retailer 6$358 SGD
Retailer 2$397 SGD
Retailer 15$397 SGD
Retailer 7$537 SGD
Retailer 13$601 SGD
Retailer 17$681 SGD
Retailer 11$686 SGD
Retailer 1$749 SGD
Retailer 10$972 SGD
Retailer 3$992 SGD
Retailer 14$993 SGD
Retailer 16$1,278 SGD
Retailer 4$1,343 SGD
Retailer 12$1,594 SGD
Retailer 8$1,732 SGD
Retailer 9$2,000 SGD

40 data points across 17 retailers

22 retailers$321 SGD to $2,505 SGD

A
Cheapest Retailer
-
$321 SGD
A
Retailer 2
-
$358 SGD
View
Final sale: no returns
Retailer 3
-
$383 SGD
View
Price last confirmed 27 days ago
Retailer 4
-
$397 SGD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$397 SGD
View
Retailer 6
-
$445 SGD
View
Price last confirmed 36 days ago
Retailer 7
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$475 SGD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$537 SGD
View
A
Retailer 9
-
$601 SGD
View
Retailer 10
-
$681 SGD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$686 SGD
View
A
Retailer 12
-
$749 SGD
View
A
Retailer 13
-
$972 SGD
View
B+
Retailer 14
-
$992 SGD
View
B+
Retailer 15
-
$993 SGD
View
B+
Retailer 16
-
$1,278 SGD
View
B+
Retailer 17
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$1,343 SGD
View
Retailer 18
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$1,527 SGD
View
Price last confirmed 35 days ago
B+
Retailer 19
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$1,594 SGD
View
B
Retailer 20
-
$1,732 SGD
View
Retailer 21
-
$2,000 SGD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
22457764A · Nov 3
$2,505 SGD
$1,960 USD
View
21 more retailers have this diamond
Prices start from $321 SGDSave up to $2,184 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
1.20ct Marquise
$321 SGD