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Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1559557053

Certificate GIA 1559557053

Diamond specifications and retailer prices

From HK$24,652 HKD
$3,142 USD
As of October 28, 2026
Save HK$28,748 HKD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$53,401 HKD at NZ Jewellers · As of October 27, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559557053. Listed at 17 retailers as of October 27, 2026, with prices from HK$24,652 to HK$53,401, a HK$28,748 spread on the same certified stone. NZ Jewellers lists it at HK$53,401. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559557053
Dimensions6.40 × 6.43 × 4.02 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
6.40 mm6.43 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1559557053
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 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: Oct 28
Current: HK$35,678 HKD|Low: HK$24,652 HKD|High: HK$51,875 HKD|Avg: HK$33,119 HKD|+17.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$24,652 HKD
Retailer 8HK$26,716 HKD
Retailer 10HK$27,767 HKD
Retailer 6HK$31,494 HKD
Retailer 7HK$32,866 HKD
Retailer 4HK$34,634 HKD
Retailer 2HK$34,703 HKD
Retailer 1HK$35,678 HKD
Retailer 5HK$37,325 HKD
Retailer 3HK$51,537 HKD

39 data points across 10 retailers

17 retailersHK$24,652 HKD to HK$53,401 HKD

B+
Cheapest Retailer
-
HK$24,652 HKD
$3,142 USD
Retailer 2
-
HK$26,716 HKD
$3,405 USD
View
Price last confirmed 5 days ago
Retailer 3
-
HK$27,767 HKD
$3,539 USD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$27,767 HKD
$3,539 USD
View
Price last confirmed 7 days ago
Retailer 5
-
HK$27,767 HKD
$3,539 USD
View
Price last confirmed 52 days ago
Retailer 6
-
HK$28,834 HKD
$3,675 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$31,494 HKD
$4,014 USD
View
Retailer 8
-
HK$32,043 HKD
$4,084 USD
View
Price last confirmed 56 days ago
B+
Retailer 9
-
HK$32,043 HKD
$4,084 USD
View
Retailer 10
-
HK$32,866 HKD
A$6,444 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
HK$34,634 HKD
€4,204 EUR
View
Retailer 12
-
HK$34,703 HKD
$4,423 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
HK$35,678 HKD
£3,580 GBP
View
B
Retailer 14
-
HK$37,325 HKD
ZAR 76,853 ZAR
View
B
Retailer 15
-
HK$51,537 HKD
£5,172 GBP
View
Retailer 16
-
HK$53,401 HKD
$6,806 USD
View
Price last confirmed 53 days ago
Most Expensive
B
NZ Jewellers
040bf454-6994-43d5-bf2a-fd6506d0bf8e · Oct 27
HK$53,401 HKD
$6,806 USD
View
16 more retailers have this diamond
Prices start from HK$24,652 HKDSave up to HK$28,748 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$24,652 HKD