CaratHunter
Plans
Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1505020864

Certificate GIA 1505020864

Diamond specifications and retailer prices

From HK$25,426 HKD
As of November 4, 2026
Save HK$33,952 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$59,378 HKD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 1505020864. Listed at 18 retailers as of November 4, 2026, with prices from HK$25,426 to HK$59,378, a HK$33,952 spread on the same certified stone. Diamond Quarter lists it at HK$59,378. 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
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1505020864
Dimensions6.39 × 6.44 × 4.03 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.39 mm6.44 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1505020864
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$36,347 HKD|Low: HK$22,908 HKD|High: HK$50,398 HKD|Avg: HK$33,358 HKD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8HK$26,823 HKD
Retailer 5HK$27,490 HKD
Retailer 7HK$29,780 HKD
Retailer 3HK$30,628 HKD
Retailer 6HK$31,899 HKD
Retailer 2HK$34,637 HKD
Retailer 1HK$36,347 HKD
Retailer 4HK$49,801 HKD

40 data points across 8 retailers

18 retailersHK$25,426 HKD to HK$59,378 HKD

B+
Cheapest Retailer
-
HK$25,426 HKD
B+
Retailer 2
-
HK$26,438 HKD
View
B+
Retailer 3
-
HK$26,823 HKD
View
B+
Retailer 4
-
HK$27,490 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$28,517 HKD
View
Retailer 6
-
HK$29,780 HKD
View
Price last confirmed 8 days ago
Retailer 7
-
HK$29,780 HKD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
HK$30,628 HKD
View
Retailer 9
-
HK$30,926 HKD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
HK$30,926 HKD
View
Retailer 11
-
HK$31,899 HKD
View
Price last confirmed 29 days ago
Retailer 12
-
HK$34,362 HKD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
HK$34,637 HKD
View
B+
Retailer 14
-
HK$36,347 HKD
View
B
Retailer 15
-
HK$49,801 HKD
View
Retailer 16
-
HK$51,880 HKD
View
Price last confirmed 39 days ago
B
Retailer 17
-
HK$51,880 HKD
View
Most Expensive
B
Diamond Quarter
1.03SI1E15648828N · Nov 5
HK$59,378 HKD
£5,960 GBP
View
17 more retailers have this diamond
Prices start from HK$25,426 HKDSave up to HK$33,952 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.

B+
1.03ct Round
HK$25,426 HKD