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Heart|Lab Grown|IGI

1.21ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG836619501

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836619501

Diamond specifications and retailer prices

From $316 SGD
As of November 4, 2026
Save $2,227 SGD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,543 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836619501 or 836619501. Listed at 20 retailers as of November 4, 2026, with prices from $316 to $2,543, a $2,227 spread on the same certified stone. Brilliant Earth lists it at $2,543. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619501
Dimensions6.64 × 7.31 × 4.24 mm
L/W Ratio1.10
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
6.64 mm7.31 mm1.21 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619501
Side View
Table 54.0%Crown 34.9°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 58.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $2,543 SGD|Low: $316 SGD|High: $2,543 SGD|Avg: $905 SGD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 21
November 5, 2026
Retailer 8$316 SGD
Retailer 4$354 SGD
Retailer 20$367 SGD
Retailer 7$392 SGD
Retailer 11$392 SGD
Retailer 15$401 SGD
Retailer 14$620 SGD
Retailer 6$658 SGD
Retailer 19$671 SGD
Retailer 18$676 SGD
Retailer 5$695 SGD
Retailer 2$736 SGD
Retailer 16$958 SGD
Retailer 9$981 SGD
Retailer 17$997 SGD
Retailer 12$1,259 SGD
Retailer 3$1,307 SGD
Retailer 10$1,325 SGD
Retailer 21$1,426 SGD
Retailer 13$1,565 SGD
Brilliant Earth$2,543 SGD

31 data points across 21 retailers

20 retailers$316 SGD to $2,543 SGD

A
Cheapest Retailer
-
$316 SGD
A
Retailer 2
-
$354 SGD
View
Final sale: no returns
A
Retailer 3
-
$367 SGD
View
A
Retailer 4
-
$392 SGD
View
Retailer 5
-
$392 SGD
View
Price last confirmed 11 days ago
A
Retailer 6
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$401 SGD
View
A
Retailer 7
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$658 SGD
View
A
Retailer 8
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$671 SGD
View
A
Retailer 9
-
$676 SGD
View
A
Retailer 10
-
$695 SGD
View
A
Retailer 11
-
$736 SGD
View
B+
Retailer 12
-
$958 SGD
View
B+
Retailer 13
-
$981 SGD
View
B+
Retailer 14
-
$997 SGD
View
B+
Retailer 15
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$1,259 SGD
View
B+
Retailer 16
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$1,307 SGD
View
B+
Retailer 17
-
$1,325 SGD
View
B+
Retailer 18
-
$1,426 SGD
View
B
Retailer 19
-
$1,565 SGD
View
Most Expensive
B
Brilliant Earth
21695593A · Nov 4
$2,543 SGD
$1,990 USD
View
19 more retailers have this diamond
Prices start from $316 SGDSave up to $2,227 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 Heart
$316 SGD