Round|Natural|GIA

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1559557053

Certificate GIA 1559557053

Diamond specifications and retailer prices

From $5,584 NZD

$3,142 USD

As of October 28, 2026

Save $6,512 NZD (54%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $12,096 NZD 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 $5,584 to $12,096, a $6,512 spread on the same certified stone. NZ Jewellers lists it at $12,096. 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 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

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 1559557053

Side View

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: $8,082 NZD|Low: $5,584 NZD|High: $11,751 NZD|Avg: $7,519 NZD|+17.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 3, 2026

Retailer 9$5,584 NZD

Retailer 8$6,052 NZD

Retailer 10$6,290 NZD

Retailer 6$7,134 NZD

Retailer 7$7,445 NZD

Retailer 4$7,845 NZD

Retailer 2$7,861 NZD

Retailer 1$8,082 NZD

Retailer 5$8,455 NZD

Retailer 3$11,674 NZD

39 data points across 10 retailers

17 retailers$5,584 NZD to $12,096 NZD

B+

Cheapest Retailer

$5,584 NZD

$3,142 USD

Retailer 2

$6,052 NZD

$3,405 USD

View

Price last confirmed 6 days ago

Retailer 3

$6,290 NZD

$3,539 USD

View

Price last confirmed 9 days ago

Retailer 4

$6,290 NZD

$3,539 USD

View

Price last confirmed 8 days ago

Retailer 5

$6,290 NZD

$3,539 USD

View

Price last confirmed 52 days ago

Retailer 6

$6,532 NZD

$3,675 USD

View

Price last confirmed 8 days ago

B+

Retailer 7

$7,134 NZD

$4,014 USD

View

Retailer 8

$7,258 NZD

$4,084 USD

View

Price last confirmed 57 days ago

B+

Retailer 9

$7,258 NZD

$4,084 USD

View

Retailer 10

$7,445 NZD

A$6,444 AUD

View

Price last confirmed 30 days ago

Retailer 11

$7,845 NZD

€4,204 EUR

View

Retailer 12

$7,861 NZD

$4,423 USD

View

Price last confirmed 11 days ago

Retailer 13

$8,082 NZD

£3,580 GBP

View

Retailer 14

$8,455 NZD

ZAR 76,853 ZAR

View

Price last confirmed 7 days ago

Retailer 15

$11,674 NZD

£5,172 GBP

View

Retailer 16

$12,096 NZD

$6,806 USD

View

Price last confirmed 53 days ago

Most Expensive

NZ Jewellers

040bf454-6994-43d5-bf2a-fd6506d0bf8e · Oct 27

$12,096 NZD

$6,806 USD

View

16 more retailers have this diamond

Prices start from $5,584 NZDSave up to $6,512 NZD

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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B+

1.03ct Round

$5,584 NZD