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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG739586856

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG739586856

Diamond specifications and retailer prices

From $564 SGD
As of November 4, 2026
Save $2,670 SGD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,233 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown marquise diamond

This 1.21ct 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 LG739586856 or 739586856. Listed at 23 retailers as of November 4, 2026, with prices from $564 to $3,233, a $2,670 spread on the same certified stone. Brilliant Earth lists it at $3,233. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739586856
Dimensions10.79 × 5.59 × 3.49 mm
L/W Ratio1.93
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
10.79 mm5.59 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739586856
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 40°Culet: NoneDepth 62.4%

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: $3,233 SGD|Low: $564 SGD|High: $3,783 SGD|Avg: $1,548 SGD|-14.5%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 22
Retailer 23
November 5, 2026
Retailer 16$564 SGD
Retailer 11$630 SGD
Retailer 7$631 SGD
Retailer 5$699 SGD
Retailer 23$699 SGD
Retailer 6$768 SGD
Retailer 19$882 SGD
Retailer 10$988 SGD
Retailer 4$1,067 SGD
Retailer 12$1,098 SGD
Retailer 20$1,108 SGD
Retailer 2$1,142 SGD
Retailer 17$1,204 SGD
Retailer 18$1,701 SGD
Retailer 3$1,877 SGD
Retailer 21$1,962 SGD
Retailer 9$2,045 SGD
Retailer 15$2,215 SGD
Retailer 22$2,245 SGD
Retailer 8$2,287 SGD
Retailer 14$2,506 SGD
Retailer 13$2,565 SGD
Brilliant Earth$3,233 SGD

40 data points across 23 retailers

23 retailers$564 SGD to $3,233 SGD

A
Cheapest Retailer
-
$564 SGD
A
Retailer 2
-
$630 SGD
View
Final sale: no returns
A
Retailer 3
-
$631 SGD
View
Retailer 4
-
$699 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$699 SGD
View
A
Retailer 6
-
$768 SGD
View
A
Retailer 7
-
$882 SGD
View
B+
Retailer 8
-
$988 SGD
View
B+
Retailer 9
-
$1,067 SGD
View
B+
Retailer 10
-
$1,098 SGD
View
Retailer 11
-
$1,108 SGD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$1,142 SGD
View
B+
Retailer 13
-
$1,204 SGD
View
B+
Retailer 14
-
$1,701 SGD
View
B
Retailer 15
-
$1,877 SGD
View
Retailer 16
-
$1,962 SGD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$2,045 SGD
View
B
Retailer 18
-
$2,215 SGD
View
B
Retailer 19
-
$2,245 SGD
View
B
Retailer 20
-
$2,287 SGD
View
B
Retailer 21
-
$2,506 SGD
View
B
Retailer 22
-
$2,565 SGD
View
Most Expensive
B
Brilliant Earth
19056215A · Nov 4
$3,233 SGD
$2,530 USD
View
22 more retailers have this diamond
Prices start from $564 SGDSave up to $2,670 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
1.21ct Marquise
$564 SGD