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Round|Natural|GIA

1.28ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2567115421

Certificate GIA 2567115421

Diamond specifications and retailer prices

From HK$32,050 HKD
SGD 5,520 SGD
As of October 31, 2026
Save HK$29,056 HKD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$61,105 HKD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567115421. Listed at 7 retailers as of October 31, 2026, with prices from HK$32,050 to HK$61,105, a HK$29,056 spread on the same certified stone. NZ Jewellers lists it at HK$61,105. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2567115421
Dimensions6.98 × 6.99 × 4.29 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.98 mm6.99 mm1.28 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567115421
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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: Oct 31
Current: HK$61,105 HKD|Low: HK$29,674 HKD|High: HK$62,188 HKD|Avg: HK$40,369 HKD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5HK$32,050 HKD
Retailer 6HK$32,373 HKD
Retailer 2HK$35,660 HKD
Retailer 3HK$37,287 HKD
Retailer 7HK$37,412 HKD
Retailer 4HK$43,114 HKD
NZ JewellersHK$61,105 HKD

44 data points across 7 retailers

7 retailersHK$32,050 HKD to HK$61,105 HKD

A
Cheapest Retailer
-
HK$32,050 HKD
SGD 5,520 SGD
A
Retailer 2
-
HK$32,373 HKD
$4,126 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$35,660 HKD
£3,579 GBP
View
B+
Retailer 4
-
HK$37,287 HKD
€4,526 EUR
View
Retailer 5
-
HK$37,412 HKD
A$7,336 AUD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
HK$43,114 HKD
ZAR 88,772 ZAR
View
Most Expensive
B
NZ Jewellers
cfe1ff16-b810-440e-bbac-193280050860 · Nov 2
HK$61,105 HKD
$7,788 USD
View
6 more retailers have this diamond
Prices start from HK$32,050 HKDSave up to HK$29,056 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 Round
HK$32,050 HKD