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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG774670800

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774670800

Diamond specifications and retailer prices

From $357 SGD
As of November 4, 2026
Save $1,491 SGD (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,930 SGD at Brilliant Earth · As of October 21, 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 top-tier cut grade and certified by IGI LG774670800 or 774670800. Listed at 25 retailers as of November 4, 2026, with a 418% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774670800
Dimensions6.97 × 7.33 × 4.47 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm7.33 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774670800
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.0%

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: $1,930 SGD|Low: $342 SGD|High: $1,994 SGD|Avg: $922 SGD|-3.2%
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
November 5, 2026
Retailer 13$357 SGD
Retailer 6$399 SGD
Retailer 3$442 SGD
Retailer 14$442 SGD
Retailer 11$645 SGD
Retailer 10$725 SGD
Retailer 8$762 SGD
Retailer 5$764 SGD
Retailer 2$767 SGD
Retailer 7$1,085 SGD
Retailer 12$1,360 SGD
Retailer 4$1,418 SGD
Retailer 9$1,774 SGD
Brilliant Earth$1,930 SGD

44 data points across 14 retailers

25 retailers$357 SGD to $1,848 SGD

Retailer 1
-
$357 SGD
Price last confirmed 36 days ago
A
Retailer 2
-
$357 SGD
View
A
Retailer 3
-
$399 SGD
View
Final sale: no returns
Retailer 4
-
$414 SGD
View
Price last confirmed 37 days ago
Retailer 5
-
$437 SGD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$442 SGD
View
Retailer 7
-
$442 SGD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$491 SGD
View
A
Retailer 9
-
$594 SGD
View
A
Retailer 10
-
$645 SGD
View
B+
Retailer 11
-
$725 SGD
View
B+
Retailer 12
-
$762 SGD
View
B+
Retailer 13
-
$764 SGD
View
B+
Retailer 14
-
$767 SGD
View
B+
Retailer 15
-
$851 SGD
View
B+
Retailer 16
-
$935 SGD
View
B+
Retailer 17
-
$1,085 SGD
View
Retailer 18
-
$1,128 SGD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$1,360 SGD
View
Retailer 20
-
$1,418 SGD
View
Price last confirmed 7 days ago
Retailer 21
-
$1,422 SGD
View
Price last confirmed 36 days ago
B
Retailer 22
-
$1,486 SGD
View
B
Retailer 23
-
$1,774 SGD
View
B
Retailer 24
-
$1,848 SGD
View
Most Expensive
Brilliant Earth
18180896A · Oct 21
$1,930 SGD
$1,510 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from $357 SGDSave up to $1,491 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
$357 SGD