Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2556409765

Certificate GIA 2556409765

Diamond specifications and retailer prices

From HK$19,931 HKD

A$3,908 AUD

As of November 2, 2026

17 retailers carry this diamond

Most expensive: HK$42,463 HKD at NZ Jewellers · As of September 26, 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 2556409765. Listed at 17 retailers as of November 2, 2026. 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

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

Crown angle34.5°

Pavilion angle41.2°

OriginNatural

Grading LabGIA

CertificateGIA 2556409765

Dimensions6.40 × 6.45 × 4.04 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 2556409765

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: HK$21,495 HKD|Low: HK$14,759 HKD|High: HK$36,012 HKD|Avg: HK$20,638 HKD|+0.1%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 17, 2026

Retailer 2HK$15,165 HKD

Retailer 6HK$15,254 HKD

Retailer 8HK$16,944 HKD

Retailer 10HK$17,349 HKD

Retailer 5HK$18,289 HKD

Retailer 12HK$18,650 HKD

Retailer 11HK$18,744 HKD

Retailer 4HK$21,239 HKD

Retailer 1HK$21,495 HKD

Retailer 7HK$23,949 HKD

Retailer 3HK$23,965 HKD

Retailer 9HK$35,972 HKD

24 data points across 12 retailers

17 retailers

Retailer 1

HK$15,165 HKD

Price last confirmed 19 days ago

Retailer 2

HK$15,254 HKD

₹185,151 INR

View

Price last confirmed 17 days ago

Retailer 3

HK$16,944 HKD

€2,057 EUR

View

Price last confirmed 17 days ago

Retailer 4

HK$18,289 HKD

$2,331 USD

View

Price last confirmed 17 days ago

Retailer 5

HK$18,650 HKD

$2,377 USD

View

Price last confirmed 18 days ago

Retailer 6

HK$19,931 HKD

A$3,908 AUD

View

Retailer 7

HK$20,314 HKD

$2,589 USD

View

Price last confirmed 24 days ago

Retailer 8

HK$20,314 HKD

$2,589 USD

View

Price last confirmed 56 days ago

Retailer 9

HK$21,239 HKD

SGD 3,658 SGD

View

Price last confirmed 18 days ago

Retailer 10

HK$21,247 HKD

$2,708 USD

View

Price last confirmed 18 days ago

Retailer 11

HK$21,495 HKD

£2,157 GBP

View

Price last confirmed 16 days ago

Retailer 12

HK$23,436 HKD

$2,987 USD

View

Price last confirmed 24 days ago

Retailer 13

HK$23,436 HKD

$2,987 USD

View

Price last confirmed 56 days ago

Retailer 14

HK$23,965 HKD

£2,405 GBP

View

Price last confirmed 17 days ago

Retailer 15

HK$29,523 HKD

$3,763 USD

View

Price last confirmed 19 days ago

Retailer 16

HK$35,972 HKD

£3,610 GBP

View

Price last confirmed 18 days ago

Most Expensive

NZ Jewellers

1e66f498-e0a9-47ea-b7ec-8cb2b206e102 · Sep 26

HK$42,463 HKD

$5,412 USD

View

Price last confirmed 36 days ago

16 more retailers have this diamond

Prices start from HK$19,931 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.

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1.03ct Round

HK$19,931 HKD