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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG823684681

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823684681

Diamond specifications and retailer prices

From $308 SGD
As of November 2, 2026
Save $2,644 SGD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,952 SGD at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

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 LG823684681 or 823684681. Listed at 17 retailers as of November 2, 2026, with prices from $308 to $2,952, a $2,644 spread on the same certified stone. Do Amore Diamonds lists it at $2,952. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823684681
Dimensions11.29 × 5.64 × 3.43 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
11.29 mm5.64 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823684681
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.8%

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 2
Current: $2,952 SGD|Low: $308 SGD|High: $2,952 SGD|Avg: $1,141 SGD
Do Amore Diamonds
Retailer 2
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Retailer 18
November 3, 2026
Retailer 17$308 SGD
Retailer 6$344 SGD
Retailer 16$357 SGD
Retailer 18$382 SGD
Retailer 8$644 SGD
Retailer 13$726 SGD
Retailer 5$765 SGD
Retailer 10$773 SGD
Retailer 11$799 SGD
Retailer 2$1,034 SGD
Retailer 12$1,067 SGD
Retailer 3$1,355 SGD
Retailer 7$1,569 SGD
Retailer 4$1,619 SGD
Retailer 14$1,687 SGD
Retailer 9$1,879 SGD
Retailer 15$2,156 SGD
Do Amore Diamonds$2,952 SGD

43 data points across 18 retailers

17 retailers$308 SGD to $2,952 SGD

A
Cheapest Retailer
-
$308 SGD
A
Retailer 2
-
$344 SGD
View
Final sale: no returns
A
Retailer 3
-
$357 SGD
View
A
Retailer 4
-
$382 SGD
View
A
Retailer 5
-
$644 SGD
View
A
Retailer 6
-
$726 SGD
View
A
Retailer 7
-
$765 SGD
View
A
Retailer 8
-
$799 SGD
View
B+
Retailer 9
-
$1,034 SGD
View
B+
Retailer 10
-
$1,067 SGD
View
B+
Retailer 11
-
$1,355 SGD
View
B+
Retailer 12
-
$1,569 SGD
View
B+
Retailer 13
-
$1,619 SGD
View
B+
Retailer 14
-
$1,687 SGD
View
Retailer 15
-
$1,879 SGD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$2,156 SGD
View
Most Expensive
B
Do Amore Diamonds
27-617AE431C · Nov 3
$2,952 SGD
$2,310 USD
View
16 more retailers have this diamond
Prices start from $308 SGDSave up to $2,644 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
$308 SGD