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Round|Lab Grown|IGI

1.28ct D VVS2 Round Lab Grown Diamond

EX • D/VVS2 • IGI LG818644788

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644788

Diamond specifications and retailer prices

From $289 AUD
As of November 5, 2026
Save $1,424 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,066 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818644788 or 818644788. Listed at 22 retailers as of November 4, 2026, with a 494% 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
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644788
Dimensions6.99 × 7.03 × 4.21 mm
L/W Ratio1.01
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
6.99 mm7.03 mm1.28 ctD / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644788
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.1%

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 5
Current: $583 AUD|Low: $277 AUD|High: $1,691 AUD|Avg: $710 AUD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$289 AUD
Retailer 11$321 AUD
Retailer 4$357 AUD
Retailer 3$483 AUD
Retailer 1$583 AUD
Retailer 10$617 AUD
Retailer 5$649 AUD
Retailer 9$656 AUD
Retailer 12$786 AUD
Retailer 7$871 AUD
Retailer 8$933 AUD
Retailer 6$1,667 AUD

42 data points across 12 retailers

22 retailers$289 AUD to $1,713 AUD

A
Cheapest Retailer
-
$289 AUD
A
Retailer 2
-
$321 AUD
View
Final sale: no returns
A
Retailer 3
-
$334 AUD
View
Retailer 4
-
$357 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$357 AUD
View
A
Retailer 6
-
$401 AUD
View
B+
Retailer 7
-
$483 AUD
View
A
Retailer 8
-
$583 AUD
View
A
Retailer 9
-
$617 AUD
View
A
Retailer 10
-
$649 AUD
View
A
Retailer 11
-
$656 AUD
View
A
Retailer 12
-
$661 AUD
View
Retailer 13
-
$786 AUD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$871 AUD
View
B+
Retailer 15
-
$933 AUD
View
B
Retailer 16
-
$1,150 AUD
View
B
Retailer 17
-
$1,163 AUD
View
B
Retailer 18
-
$1,214 AUD
View
B
Retailer 19
-
$1,226 AUD
View
B
Retailer 20
-
$1,667 AUD
View
B
Retailer 21
-
$1,713 AUD
View
Most Expensive
Queensmith
LG818644788 · Oct 27
$3,066 AUD
£1,690 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $289 AUDSave up to $1,424 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 Round
$289 AUD