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Round|Lab Grown|IGI

1.28ct D VVS2 Round Lab Grown Diamond

ID • D/VVS2 • IGI LG818644925

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644925

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)
23 retailers carry this diamond
Most expensive: $3,120 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 LG818644925 or 818644925. Listed at 23 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644925
Dimensions6.97 × 7.00 × 4.22 mm
L/W Ratio1.00
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
6.97 mm7.00 mm1.28 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644925
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

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 5
Current: $583 AUD|Low: $277 AUD|High: $1,690 AUD|Avg: $695 AUD|-1.9%
Retailer 1
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 14$289 AUD
Retailer 5$334 AUD
Retailer 2$357 AUD
Retailer 13$357 AUD
Retailer 6$483 AUD
Retailer 1$583 AUD
Retailer 8$600 AUD
Retailer 12$617 AUD
Retailer 7$649 AUD
Retailer 10$871 AUD
Retailer 11$933 AUD
Retailer 3$1,150 AUD
Retailer 4$1,400 AUD
Retailer 9$1,671 AUD

35 data points across 14 retailers

23 retailers$289 AUD to $1,713 AUD

A
Cheapest Retailer
-
$289 AUD
A
Retailer 2
-
$323 AUD
View
Final sale: no returns
A
Retailer 3
-
$334 AUD
View
A
Retailer 4
-
$357 AUD
View
Retailer 5
-
$357 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$401 AUD
View
B+
Retailer 7
-
$483 AUD
View
A
Retailer 8
-
$583 AUD
View
A
Retailer 9
-
$600 AUD
View
A
Retailer 10
-
$617 AUD
View
A
Retailer 11
-
$649 AUD
View
A
Retailer 12
-
$661 AUD
View
B+
Retailer 13
-
$711 AUD
View
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
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$1,226 AUD
View
B
Retailer 20
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$1,400 AUD
View
B
Retailer 21
-
$1,671 AUD
View
B
Retailer 22
-
$1,713 AUD
View
Most Expensive
Queensmith
LG818644925 · Oct 27
$3,120 AUD
£1,720 GBP
View
Price last confirmed 9 days ago
22 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