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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 HK$10,533 HKD
As of November 6, 2026
Save HK$24,241 HKD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$34,775 HKD 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 HK$10,533 to HK$34,775, a HK$24,241 spread on the same certified stone. NZ Jewellers lists it at HK$34,775. 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: HK$34,775 HKD|Low: HK$10,432 HKD|High: HK$35,260 HKD|Avg: HK$16,494 HKD|-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 7HK$10,533 HKD
Retailer 3HK$13,018 HKD
Retailer 5HK$13,982 HKD
Retailer 8HK$14,256 HKD
Retailer 11HK$14,256 HKD
Retailer 4HK$14,452 HKD
Retailer 9HK$14,695 HKD
Retailer 13HK$14,915 HKD
Retailer 10HK$15,330 HKD
Retailer 12HK$16,451 HKD
Retailer 6HK$17,399 HKD
Retailer 2HK$19,358 HKD
NZ JewellersHK$34,775 HKD

32 data points across 13 retailers

12 retailersHK$10,533 HKD to HK$34,775 HKD

A
Cheapest Retailer
-
HK$10,533 HKD
A
Retailer 2
-
HK$13,018 HKD
View
Retailer 3
-
HK$14,256 HKD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
HK$14,256 HKD
View
B+
Retailer 5
-
HK$14,452 HKD
View
B+
Retailer 6
-
HK$14,695 HKD
View
B+
Retailer 7
-
HK$14,915 HKD
View
B+
Retailer 8
-
HK$15,330 HKD
View
B+
Retailer 9
-
HK$16,451 HKD
View
B+
Retailer 10
-
HK$17,399 HKD
View
B
Retailer 11
-
HK$19,358 HKD
View
Most Expensive
B
NZ Jewellers
0aa3f585-1d3d-4c76-8aa9-2cace6c3caa2 · Nov 5
HK$34,775 HKD
$4,437 USD
View
11 more retailers have this diamond
Prices start from HK$10,533 HKDSave up to HK$24,241 HKD

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
HK$10,533 HKD