Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6565159898

Certificate GIA 6565159898

Diamond specifications and retailer prices

From $39,610 AUD

$27,824 USD

As of October 24, 2026

Save $29,510 AUD (43%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $69,121 AUD at MOH London · As of October 25, 2026

View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565159898. Listed at 17 retailers as of October 24, 2026, with prices from $39,610 to $69,121, a $29,510 spread on the same certified stone. MOH London lists it at $69,121. 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

2.50

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6565159898

Dimensions8.64 × 8.61 × 5.45 mm

L/W Ratio1.00

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6565159898

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

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

Price History

Last verified: Oct 24

Current: $69,121 AUD|Low: $38,686 AUD|High: $99,203 AUD|Avg: $49,512 AUD|-30.3%

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

Retailer 14

Retailer 15

Retailer 16

Retailer 17

October 25, 2026

Retailer 15$38,686 AUD

Retailer 6$39,610 AUD

Retailer 5$40,241 AUD

Retailer 4$42,950 AUD

Retailer 9$43,529 AUD

Retailer 11$44,199 AUD

Retailer 17$44,684 AUD

Retailer 2$44,926 AUD

Retailer 16$46,041 AUD

Retailer 14$46,409 AUD

Retailer 7$47,256 AUD

Retailer 3$47,883 AUD

Retailer 10$48,096 AUD

Retailer 8$49,724 AUD

Retailer 12$53,319 AUD

Retailer 13$59,935 AUD

MOH London$69,121 AUD

28 data points across 17 retailers

17 retailers$39,610 AUD to $69,121 AUD

Retailer 1

$38,686 AUD

$27,175 USD

Price last confirmed 9 days ago

Retailer 2

$39,610 AUD

$27,824 USD

View

Retailer 3

$40,241 AUD

$28,267 USD

View

Price last confirmed 7 days ago

Retailer 4

$42,950 AUD

$30,170 USD

View

Price last confirmed 5 days ago

Retailer 5

$43,529 AUD

View

Price last confirmed 26 days ago

B+

Retailer 6

$44,199 AUD

$31,047 USD

View

B+

Retailer 7

$44,684 AUD

$31,388 USD

View

B+

Retailer 8

$44,926 AUD

£24,849 GBP

View

Retailer 9

$46,041 AUD

$32,341 USD

View

Price last confirmed 7 days ago

Retailer 10

$46,409 AUD

$32,600 USD

View

Price last confirmed 8 days ago

B+

Retailer 11

$47,256 AUD

$33,195 USD

View

Retailer 12

$47,883 AUD

$33,635 USD

View

Price last confirmed 8 days ago

B+

Retailer 13

$48,096 AUD

£26,602 GBP

View

Retailer 14

$49,724 AUD

$34,928 USD

View

Price last confirmed 7 days ago

Retailer 15

$53,319 AUD

€35,670 EUR

View

Price last confirmed 7 days ago

Retailer 16

$59,935 AUD

ZAR 680,146 ZAR

View

Price last confirmed 8 days ago

Most Expensive

MOH London

2D437B153 · Oct 25

$69,121 AUD

£38,231 GBP

View

16 more retailers have this diamond

Prices start from $39,610 AUDSave up to $29,510 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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$39,610 AUD