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Oval|Natural|GIA

1.28ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6445428290

Certificate GIA 6445428290

Diamond specifications and retailer prices

From $2,424 NZD
As of November 6, 2026
Save $5,579 NZD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,004 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.28ct natural oval diamond

This 1.28ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6445428290. Listed at 12 retailers as of November 5, 2026, with prices from $2,424 to $8,004, a $5,579 spread on the same certified stone. NZ Jewellers lists it at $8,004. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.28
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6445428290
Dimensions8.30 × 5.71 × 3.95 mm
L/W Ratio1.45
Top View
8.30 mm5.71 mm1.28 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6445428290
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.2%

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 6
Current: $8,004 NZD|Low: $2,401 NZD|High: $8,116 NZD|Avg: $3,796 NZD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$2,424 NZD
Retailer 3$2,996 NZD
Retailer 5$3,218 NZD
Retailer 8$3,281 NZD
Retailer 11$3,281 NZD
Retailer 4$3,326 NZD
Retailer 9$3,382 NZD
Retailer 13$3,433 NZD
Retailer 10$3,528 NZD
Retailer 12$3,786 NZD
Retailer 6$4,005 NZD
Retailer 2$4,456 NZD
NZ Jewellers$8,004 NZD

32 data points across 13 retailers

12 retailers$2,424 NZD to $8,004 NZD

A
Cheapest Retailer
-
$2,424 NZD
A
Retailer 2
-
$2,996 NZD
View
Retailer 3
-
$3,281 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$3,281 NZD
View
B+
Retailer 5
-
$3,326 NZD
View
B+
Retailer 6
-
$3,382 NZD
View
B+
Retailer 7
-
$3,433 NZD
View
B+
Retailer 8
-
$3,528 NZD
View
B+
Retailer 9
-
$3,786 NZD
View
B+
Retailer 10
-
$4,005 NZD
View
B
Retailer 11
-
$4,456 NZD
View
Most Expensive
B
NZ Jewellers
0aa3f585-1d3d-4c76-8aa9-2cace6c3caa2 · Nov 5
$8,004 NZD
$4,437 USD
View
11 more retailers have this diamond
Prices start from $2,424 NZDSave up to $5,579 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
$2,424 NZD