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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 $398 AUD
As of November 4, 2026
Save $1,664 AUD (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,153 AUD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,153 AUD|Low: $382 AUD|High: $2,224 AUD|Avg: $1,028 AUD|-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$398 AUD
Retailer 6$445 AUD
Retailer 3$493 AUD
Retailer 14$493 AUD
Retailer 11$720 AUD
Retailer 10$808 AUD
Retailer 8$850 AUD
Retailer 5$852 AUD
Retailer 2$855 AUD
Retailer 7$1,210 AUD
Retailer 12$1,517 AUD
Retailer 4$1,582 AUD
Retailer 9$1,979 AUD
Brilliant Earth$2,153 AUD

44 data points across 14 retailers

25 retailers$398 AUD to $2,061 AUD

Retailer 1
-
$398 AUD
Price last confirmed 36 days ago
A
Retailer 2
-
$398 AUD
View
A
Retailer 3
-
$445 AUD
View
Final sale: no returns
Retailer 4
-
$462 AUD
View
Price last confirmed 37 days ago
Retailer 5
-
$488 AUD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$493 AUD
View
Retailer 7
-
$493 AUD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$547 AUD
View
A
Retailer 9
-
$663 AUD
View
A
Retailer 10
-
$720 AUD
View
B+
Retailer 11
-
$808 AUD
View
B+
Retailer 12
-
$850 AUD
View
B+
Retailer 13
-
$852 AUD
View
B+
Retailer 14
-
$855 AUD
View
B+
Retailer 15
-
$949 AUD
View
B+
Retailer 16
-
$1,043 AUD
View
B+
Retailer 17
-
$1,210 AUD
View
Retailer 18
-
$1,259 AUD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$1,517 AUD
View
Retailer 20
-
$1,582 AUD
View
Price last confirmed 7 days ago
Retailer 21
-
$1,587 AUD
View
Price last confirmed 36 days ago
B
Retailer 22
-
$1,658 AUD
View
B
Retailer 23
-
$1,979 AUD
View
B
Retailer 24
-
$2,061 AUD
View
Most Expensive
Brilliant Earth
18180896A · Oct 21
$2,153 AUD
$1,510 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from $398 AUDSave up to $1,664 AUD

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
$398 AUD