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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

VG • D/VVS1 • IGI LG831679993

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831679993

Diamond specifications and retailer prices

From $281 SGD
As of November 4, 2026
Save $1,648 SGD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,930 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG831679993 or 831679993. Listed at 18 retailers as of October 29, 2026, with prices from $281 to $1,930, a $1,648 spread on the same certified stone. Brilliant Earth lists it at $1,930. 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

1.28
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679993
Dimensions6.70 × 7.65 × 4.19 mm
L/W Ratio1.14
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
6.70 mm7.65 mm1.28 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679993
Side View
Table 60.0%Crown 37.6°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 54.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,930 SGD|Low: $281 SGD|High: $1,930 SGD|Avg: $826 SGD
Brilliant Earth
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
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Retailer 17
Retailer 18
November 5, 2026
Retailer 3$281 SGD
Retailer 9$314 SGD
Retailer 15$326 SGD
Retailer 8$348 SGD
Retailer 12$396 SGD
Retailer 4$596 SGD
Retailer 16$601 SGD
Retailer 2$640 SGD
Retailer 18$661 SGD
Retailer 6$824 SGD
Retailer 14$851 SGD
Retailer 13$912 SGD
Retailer 17$1,119 SGD
Retailer 10$1,128 SGD
Retailer 7$1,186 SGD
Retailer 5$1,195 SGD
Retailer 11$1,392 SGD
Brilliant Earth$1,930 SGD

8 data points across 18 retailers

18 retailers$281 SGD to $1,930 SGD

A
Cheapest Retailer
-
$281 SGD
A
Retailer 2
-
$314 SGD
View
Final sale: no returns
A
Retailer 3
-
$326 SGD
View
A
Retailer 4
-
$348 SGD
View
A
Retailer 5
-
$396 SGD
View
B+
Retailer 6
-
$596 SGD
View
B+
Retailer 7
-
$601 SGD
View
B+
Retailer 8
-
$640 SGD
View
B+
Retailer 9
-
$661 SGD
View
B+
Retailer 10
-
$824 SGD
View
B
Retailer 11
-
$851 SGD
View
B+
Retailer 12
-
$912 SGD
View
B
Retailer 13
-
$1,119 SGD
View
B
Retailer 14
-
$1,128 SGD
View
B
Retailer 15
-
$1,186 SGD
View
B
Retailer 16
-
$1,195 SGD
View
B
Retailer 17
-
$1,392 SGD
View
Most Expensive
B
Brilliant Earth
22348635A · Oct 29
$1,930 SGD
$1,510 USD
View
17 more retailers have this diamond
Prices start from $281 SGDSave up to $1,648 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
1.28ct Heart
$281 SGD