Round|Natural|GIA

2.53ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1565388316

Certificate GIA 1565388316

Diamond specifications and retailer prices

From $30,906 AUD

$21,710 USD

As of October 26, 2026

11 retailers carry this diamond

Most expensive: $46,647 AUD at MOH London · As of October 19, 2026

View at MOH London

About this 2.53ct natural round diamond

This 2.53ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565388316. Listed at 11 retailers as of October 26, 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

2.53

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36°

Pavilion angle40.8°

OriginNatural

Grading LabGIA

CertificateGIA 1565388316

Dimensions8.61 × 8.67 × 5.40 mm

L/W Ratio1.01

Star length50%

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Crystal, Feather, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 1565388316

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 26

Current: $46,647 AUD|Low: $30,906 AUD|High: $46,957 AUD|Avg: $35,388 AUD|-0.7%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

October 19, 2026

Retailer 5$30,906 AUD

Retailer 7$31,183 AUD

Retailer 4$31,426 AUD

Retailer 9$31,960 AUD

Retailer 10$32,793 AUD

Retailer 6$33,390 AUD

Retailer 2$33,431 AUD

Retailer 12$34,433 AUD

Retailer 3$35,526 AUD

Retailer 11$36,893 AUD

Retailer 8$40,502 AUD

Retailer 13$42,087 AUD

MOH London$46,647 AUD

11 data points across 13 retailers

11 retailers

B+

Cheapest Retailer

$30,906 AUD

$21,710 USD

Retailer 2

$31,183 AUD

£17,248 GBP

View

Price last confirmed 14 days ago

Retailer 3

$31,960 AUD

$22,450 USD

View

Price last confirmed 13 days ago

Retailer 4

$32,793 AUD

$23,035 USD

View

Price last confirmed 17 days ago

Retailer 5

$33,390 AUD

£18,468 GBP

View

Price last confirmed 14 days ago

Retailer 6

$34,433 AUD

$24,187 USD

View

Price last confirmed 17 days ago

Retailer 7

$35,526 AUD

$24,955 USD

View

Price last confirmed 15 days ago

Retailer 8

$36,893 AUD

$25,915 USD

View

Price last confirmed 14 days ago

Retailer 9

$40,502 AUD

ZAR 459,623 ZAR

View

Price last confirmed 15 days ago

Retailer 10

$42,087 AUD

$29,564 USD

View

Price last confirmed 15 days ago

Most Expensive

MOH London

EB0C1B2A2 · Oct 19

$46,647 AUD

£25,801 GBP

View

Price last confirmed 14 days ago

10 more retailers have this diamond

Prices start from $30,906 AUD

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+

2.53ct Round

$30,906 AUD