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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2566398726

Certificate GIA 2566398726

Diamond specifications and retailer prices

From HK$18,577 HKD
As of November 4, 2026
Save HK$23,159 HKD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$41,736 HKD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566398726. Listed at 16 retailers as of November 2, 2026, with prices from HK$18,577 to HK$41,736, a HK$23,159 spread on the same certified stone. NZ Jewellers lists it at HK$41,736. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566398726
Dimensions6.53 × 6.55 × 3.95 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.53 mm6.55 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566398726
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 4
Current: HK$41,736 HKD|Low: HK$18,577 HKD|High: HK$44,788 HKD|Avg: HK$26,799 HKD|-6.8%
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
Retailer 14
Retailer 15
Retailer 16
November 4, 2026
Retailer 2HK$18,577 HKD
Retailer 13HK$18,742 HKD
Retailer 10HK$20,900 HKD
Retailer 8HK$22,123 HKD
Retailer 4HK$22,586 HKD
Retailer 14HK$23,543 HKD
Retailer 7HK$23,653 HKD
Retailer 11HK$23,959 HKD
Retailer 9HK$24,477 HKD
Retailer 3HK$25,411 HKD
Retailer 5HK$26,266 HKD
Retailer 6HK$26,438 HKD
Retailer 12HK$27,333 HKD
Retailer 16HK$28,235 HKD
Retailer 15HK$40,928 HKD
NZ JewellersHK$41,736 HKD

26 data points across 16 retailers

16 retailersHK$18,577 HKD to HK$41,736 HKD

A
Cheapest Retailer
-
HK$18,577 HKD
A
Retailer 2
-
HK$18,742 HKD
View
A
Retailer 3
-
HK$20,900 HKD
View
A
Retailer 4
-
HK$22,123 HKD
View
A
Retailer 5
-
HK$23,543 HKD
View
A
Retailer 6
-
HK$23,653 HKD
View
A
Retailer 7
-
HK$23,959 HKD
View
A
Retailer 8
-
HK$24,477 HKD
View
B+
Retailer 9
-
HK$25,411 HKD
View
B+
Retailer 10
-
HK$26,266 HKD
View
Retailer 11
-
HK$26,438 HKD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
HK$27,333 HKD
View
B+
Retailer 13
-
HK$28,235 HKD
View
Retailer 14
-
HK$28,345 HKD
View
Price last confirmed 30 days ago
B
Retailer 15
-
HK$40,928 HKD
View
Most Expensive
B
NZ Jewellers
50fac8a4-b084-4287-902a-f994f3f5cc93 · Nov 2
HK$41,736 HKD
$5,320 USD
View
15 more retailers have this diamond
Prices start from HK$18,577 HKDSave up to HK$23,159 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
1.03ct Round
HK$18,577 HKD