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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG823652322

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823652322

Diamond specifications and retailer prices

From $373 AUD
As of November 4, 2026
Save $1,789 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,651 AUD at Brilliant Earth · As of October 16, 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 LG823652322 or 823652322. Listed at 14 retailers as of November 4, 2026, with a 479% 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 angle36.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823652322
Dimensions6.86 × 7.26 × 4.38 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm7.26 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823652322
Side View
Table 59.0%Crown 36.8°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 60.3%

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: $2,651 AUD|Low: $373 AUD|High: $2,651 AUD|Avg: $1,235 AUD
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
November 5, 2026
Retailer 11$373 AUD
Retailer 9$559 AUD
Retailer 3$718 AUD
Retailer 13$756 AUD
Retailer 2$773 AUD
Retailer 5$927 AUD
Retailer 12$1,016 AUD
Retailer 8$1,333 AUD
Retailer 7$1,403 AUD
Retailer 6$1,434 AUD
Retailer 4$1,668 AUD
Retailer 10$2,162 AUD
Brilliant Earth$2,651 AUD

24 data points across 13 retailers

14 retailers$373 AUD to $2,162 AUD

A
Cheapest Retailer
-
$373 AUD
Final sale: no returns
A
Retailer 2
-
$559 AUD
View
A
Retailer 3
-
$718 AUD
View
B+
Retailer 4
-
$756 AUD
View
B+
Retailer 5
-
$773 AUD
View
B+
Retailer 6
-
$927 AUD
View
B+
Retailer 7
-
$1,016 AUD
View
B
Retailer 8
-
$1,333 AUD
View
B+
Retailer 9
-
$1,403 AUD
View
B+
Retailer 10
-
$1,434 AUD
View
Retailer 11
-
$1,641 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$1,668 AUD
View
B
Retailer 13
-
$2,162 AUD
View
Most Expensive
Brilliant Earth
20909019A · Oct 16
$2,651 AUD
$1,860 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from $373 AUDSave up to $1,789 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
$373 AUD