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Oval|Lab Grown|IGI

1.28ct D VVS1 Oval Lab Grown Diamond

EX • D/VVS1 • IGI LG720540402

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720540402

Diamond specifications and retailer prices

From $463 NZD
As of November 6, 2026
Save $1,846 NZD (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,886 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 LG720540402 or 720540402. Listed at 24 retailers as of November 6, 2026, with a 399% 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 angle35.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540402
Dimensions8.67 × 6.07 × 3.85 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
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
8.67 mm6.07 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540402
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

Caratlytics Score

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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 6
Current: $925 NZD|Low: $463 NZD|High: $2,081 NZD|Avg: $1,188 NZD|+6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$463 NZD
Retailer 11$694 NZD
Retailer 7$886 NZD
Retailer 1$925 NZD
Retailer 2$945 NZD
Retailer 4$955 NZD
Retailer 9$1,252 NZD
Retailer 5$1,656 NZD
Retailer 10$1,770 NZD
Retailer 3$2,005 NZD
Retailer 6$2,056 NZD

41 data points across 11 retailers

24 retailers$463 NZD to $2,309 NZD

Retailer 1
-
$414 NZD
Price last confirmed 27 days ago
A
Retailer 2
-
$463 NZD
View
Final sale: no returns
Retailer 3
-
$480 NZD
View
Price last confirmed 24 days ago
Retailer 4
-
$514 NZD
View
Price last confirmed 25 days ago
Retailer 5
-
$514 NZD
View
Price last confirmed 35 days ago
A
Retailer 6
-
$569 NZD
View
A
Retailer 7
-
$694 NZD
View
A
Retailer 8
-
$886 NZD
View
A
Retailer 9
-
$925 NZD
View
A
Retailer 10
-
$945 NZD
View
A
Retailer 11
-
$955 NZD
View
B+
Retailer 12
-
$1,156 NZD
View
Retailer 13
-
$1,252 NZD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$1,366 NZD
View
Retailer 15
-
$1,651 NZD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$1,656 NZD
View
B
Retailer 17
-
$1,665 NZD
View
B
Retailer 18
-
$1,743 NZD
View
Retailer 19
-
$1,770 NZD
View
Price last confirmed 16 days ago
B
Retailer 20
-
$1,781 NZD
View
Retailer 21
-
$2,005 NZD
View
Price last confirmed 23 days ago
B+
Retailer 22
-
$2,056 NZD
View
B
Retailer 23
-
$2,309 NZD
View
Most Expensive
Queensmith
LG720540402 · Oct 27
$3,886 NZD
£1,720 GBP
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $463 NZDSave up to $1,846 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 Oval
$463 NZD