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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 $359 NZD
As of November 5, 2026
Save $1,774 NZD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,818 NZD 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: $726 NZD|Low: $345 NZD|High: $2,106 NZD|Avg: $885 NZD|-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$359 NZD
Retailer 11$400 NZD
Retailer 4$445 NZD
Retailer 3$601 NZD
Retailer 1$726 NZD
Retailer 10$768 NZD
Retailer 5$808 NZD
Retailer 9$817 NZD
Retailer 12$978 NZD
Retailer 7$1,085 NZD
Retailer 8$1,162 NZD
Retailer 6$2,076 NZD

42 data points across 12 retailers

22 retailers$359 NZD to $2,133 NZD

A
Cheapest Retailer
-
$359 NZD
A
Retailer 2
-
$400 NZD
View
Final sale: no returns
A
Retailer 3
-
$416 NZD
View
Retailer 4
-
$445 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$445 NZD
View
A
Retailer 6
-
$500 NZD
View
B+
Retailer 7
-
$601 NZD
View
A
Retailer 8
-
$726 NZD
View
A
Retailer 9
-
$768 NZD
View
A
Retailer 10
-
$808 NZD
View
A
Retailer 11
-
$817 NZD
View
A
Retailer 12
-
$824 NZD
View
Retailer 13
-
$978 NZD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$1,085 NZD
View
B+
Retailer 15
-
$1,162 NZD
View
B
Retailer 16
-
$1,432 NZD
View
B
Retailer 17
-
$1,448 NZD
View
B
Retailer 18
-
$1,512 NZD
View
B
Retailer 19
-
$1,526 NZD
View
B
Retailer 20
-
$2,076 NZD
View
B
Retailer 21
-
$2,133 NZD
View
Most Expensive
Queensmith
LG818644788 · Oct 27
$3,818 NZD
£1,690 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $359 NZDSave up to $1,774 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 Round
$359 NZD