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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 $390 NZD
As of November 4, 2026
Save $2,288 NZD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,679 NZD 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 $390 to $2,679, a $2,288 spread on the same certified stone. Brilliant Earth lists it at $2,679. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,679 NZD|Low: $390 NZD|High: $2,679 NZD|Avg: $1,147 NZD
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$390 NZD
Retailer 9$436 NZD
Retailer 15$452 NZD
Retailer 8$483 NZD
Retailer 12$550 NZD
Retailer 4$827 NZD
Retailer 16$834 NZD
Retailer 2$889 NZD
Retailer 18$917 NZD
Retailer 6$1,144 NZD
Retailer 14$1,181 NZD
Retailer 13$1,267 NZD
Retailer 17$1,554 NZD
Retailer 10$1,566 NZD
Retailer 7$1,646 NZD
Retailer 5$1,659 NZD
Retailer 11$1,932 NZD
Brilliant Earth$2,679 NZD

8 data points across 18 retailers

18 retailers$390 NZD to $2,679 NZD

A
Cheapest Retailer
-
$390 NZD
A
Retailer 2
-
$436 NZD
View
Final sale: no returns
A
Retailer 3
-
$452 NZD
View
A
Retailer 4
-
$483 NZD
View
A
Retailer 5
-
$550 NZD
View
B+
Retailer 6
-
$827 NZD
View
B+
Retailer 7
-
$834 NZD
View
B+
Retailer 8
-
$889 NZD
View
B+
Retailer 9
-
$917 NZD
View
B+
Retailer 10
-
$1,144 NZD
View
B
Retailer 11
-
$1,181 NZD
View
B+
Retailer 12
-
$1,267 NZD
View
B
Retailer 13
-
$1,554 NZD
View
B
Retailer 14
-
$1,566 NZD
View
B
Retailer 15
-
$1,646 NZD
View
B
Retailer 16
-
$1,659 NZD
View
B
Retailer 17
-
$1,932 NZD
View
Most Expensive
B
Brilliant Earth
22348635A · Oct 29
$2,679 NZD
$1,510 USD
View
17 more retailers have this diamond
Prices start from $390 NZDSave up to $2,288 NZD

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
$390 NZD