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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG729544016

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729544016

Diamond specifications and retailer prices

From $378 NZD
As of November 3, 2026
Save $1,126 NZD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,504 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG729544016 or 729544016. Listed at 6 retailers as of November 3, 2026, with prices from $378 to $1,504, a $1,126 spread on the same certified stone. NZ Jewellers lists it at $1,504. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729544016
Dimensions6.99 × 6.95 × 4.32 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 mm6.95 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729544016
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.9%

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 3
Current: $1,504 NZD|Low: $378 NZD|High: $3,069 NZD|Avg: $1,161 NZD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5$378 NZD
Retailer 4$438 NZD
Retailer 2$468 NZD
Retailer 6$470 NZD
Retailer 3$903 NZD
Retailer 7$1,139 NZD
NZ Jewellers$1,504 NZD
Retailer 9$1,735 NZD
Retailer 8$3,069 NZD

12 data points across 9 retailers

6 retailers$378 NZD to $1,504 NZD

A
Cheapest Retailer
-
$378 NZD
A
Retailer 2
-
$438 NZD
View
A
Retailer 3
-
$468 NZD
View
Retailer 4
-
$470 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$903 NZD
View
Most Expensive
B+
NZ Jewellers
eaa78dbf-3e51-4706-9204-08a3ee94fc34 · Nov 3
$1,504 NZD
$848 USD
View
5 more retailers have this diamond
Prices start from $378 NZDSave up to $1,126 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
$378 NZD