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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 $495 NZD
As of November 4, 2026
Save $2,070 NZD (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,679 NZD 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,679 NZD|Low: $475 NZD|High: $2,767 NZD|Avg: $1,280 NZD|-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$495 NZD
Retailer 6$553 NZD
Retailer 3$614 NZD
Retailer 14$614 NZD
Retailer 11$896 NZD
Retailer 10$1,006 NZD
Retailer 8$1,057 NZD
Retailer 5$1,061 NZD
Retailer 2$1,064 NZD
Retailer 7$1,506 NZD
Retailer 12$1,888 NZD
Retailer 4$1,969 NZD
Retailer 9$2,462 NZD
Brilliant Earth$2,679 NZD

44 data points across 14 retailers

25 retailers$495 NZD to $2,565 NZD

Retailer 1
-
$495 NZD
Price last confirmed 36 days ago
A
Retailer 2
-
$495 NZD
View
A
Retailer 3
-
$553 NZD
View
Final sale: no returns
Retailer 4
-
$575 NZD
View
Price last confirmed 37 days ago
Retailer 5
-
$607 NZD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$614 NZD
View
Retailer 7
-
$614 NZD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$681 NZD
View
A
Retailer 9
-
$825 NZD
View
A
Retailer 10
-
$896 NZD
View
B+
Retailer 11
-
$1,006 NZD
View
B+
Retailer 12
-
$1,057 NZD
View
B+
Retailer 13
-
$1,061 NZD
View
B+
Retailer 14
-
$1,064 NZD
View
B+
Retailer 15
-
$1,181 NZD
View
B+
Retailer 16
-
$1,299 NZD
View
B+
Retailer 17
-
$1,506 NZD
View
Retailer 18
-
$1,566 NZD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$1,888 NZD
View
Retailer 20
-
$1,969 NZD
View
Price last confirmed 7 days ago
Retailer 21
-
$1,974 NZD
View
Price last confirmed 36 days ago
B
Retailer 22
-
$2,063 NZD
View
B
Retailer 23
-
$2,462 NZD
View
B
Retailer 24
-
$2,565 NZD
View
Most Expensive
Brilliant Earth
18180896A · Oct 21
$2,679 NZD
$1,510 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from $495 NZDSave up to $2,070 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
$495 NZD