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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754594815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754594815

Diamond specifications and retailer prices

From $482 SGD
As of November 4, 2026
Save $2,100 SGD (81%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $2,581 SGD at Brilliant Earth · As of November 4, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594815 or 754594815. Listed at 30 retailers as of November 4, 2026, with prices from $482 to $2,581, a $2,100 spread on the same certified stone. Brilliant Earth lists it at $2,581. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594815
Dimensions11.03 × 5.46 × 3.45 mm
L/W Ratio2.02
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
11.03 mm5.46 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594815
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.2%

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: $2,581 SGD|Low: $482 SGD|High: $3,310 SGD|Avg: $1,574 SGD|-22.0%
Brilliant Earth
Retailer 2
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Retailer 23
November 5, 2026
Retailer 20$482 SGD
Retailer 16$583 SGD
Retailer 18$621 SGD
Retailer 15$696 SGD
Retailer 17$696 SGD
Retailer 23$754 SGD
Retailer 2$941 SGD
Retailer 12$985 SGD
Retailer 14$1,052 SGD
Retailer 10$1,116 SGD
Retailer 8$1,200 SGD
Retailer 6$1,214 SGD
Retailer 19$1,310 SGD
Retailer 22$1,564 SGD
Retailer 21$1,714 SGD
Retailer 7$1,769 SGD
Retailer 4$1,790 SGD
Retailer 11$1,949 SGD
Retailer 5$2,037 SGD
Retailer 3$2,082 SGD
Retailer 13$2,130 SGD
Retailer 9$2,284 SGD
Brilliant Earth$2,581 SGD

31 data points across 23 retailers

30 retailers$482 SGD to $2,581 SGD

A
Cheapest Retailer
-
$482 SGD
Final sale: no returns
Retailer 2
-
$583 SGD
View
Price last confirmed 28 days ago
Retailer 3
-
$583 SGD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$621 SGD
View
Retailer 5
-
$653 SGD
View
Price last confirmed 37 days ago
A
Retailer 6
-
$696 SGD
View
Retailer 7
-
$696 SGD
View
Price last confirmed 28 days ago
Retailer 8
-
$696 SGD
View
Price last confirmed 26 days ago
Retailer 9
-
$714 SGD
View
Price last confirmed 37 days ago
A
Retailer 10
-
$754 SGD
View
A
Retailer 11
-
$941 SGD
View
B+
Retailer 12
-
$985 SGD
View
B+
Retailer 13
-
$1,052 SGD
View
B+
Retailer 14
-
$1,116 SGD
View
Retailer 15
-
$1,141 SGD
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$1,200 SGD
View
B+
Retailer 17
-
$1,214 SGD
View
B+
Retailer 18
-
$1,310 SGD
View
B+
Retailer 19
-
$1,564 SGD
View
B+
Retailer 20
-
$1,714 SGD
View
B+
Retailer 21
-
$1,769 SGD
View
B+
Retailer 22
-
$1,790 SGD
View
Retailer 23
-
$1,949 SGD
View
Price last confirmed 8 days ago
B
Retailer 24
-
$2,037 SGD
View
B
Retailer 25
-
$2,082 SGD
View
B
Retailer 26
-
$2,130 SGD
View
Retailer 27
-
$2,238 SGD
View
Price last confirmed 26 days ago
B
Retailer 28
-
$2,284 SGD
View
Retailer 29
-
$2,325 SGD
View
Price last confirmed 36 days ago
Most Expensive
B
Brilliant Earth
17981286A · Nov 4
$2,581 SGD
$2,020 USD
View
29 more retailers have this diamond
Prices start from $482 SGDSave up to $2,100 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
$482 SGD