Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7506436526

Certificate GIA 7506436526

Diamond specifications and retailer prices

From $5,924 AUD

$4,161 USD

As of October 30, 2026

Save $10,657 AUD (64%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: $16,581 AUD at Diamond Quarter · As of October 29, 2026

View at Diamond Quarter

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7506436526. Listed at 29 retailers as of October 29, 2026, with prices from $5,924 to $16,581, a $10,657 spread on the same certified stone. Diamond Quarter lists it at $16,581. 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

1.40

Carat

Colour

SI2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35°

Pavilion angle41.4°

OriginNatural

Grading LabGIA

CertificateGIA 7506436526

Dimensions7.15 × 7.12 × 4.48 mm

L/W Ratio1.00

Star length50%

Lower girdle80%

Key to symbols

Crystal, Feather, Cloud, Needle, Indented Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 7506436526

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 30

Current: $7,549 AUD|Low: $5,383 AUD|High: $12,914 AUD|Avg: $7,842 AUD|-5.5%

Retailer 1

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

Retailer 18

Retailer 19

October 31, 2026

Retailer 16$5,924 AUD

Retailer 19$5,936 AUD

Retailer 3$5,982 AUD

Retailer 6$6,152 AUD

Retailer 18$6,153 AUD

Retailer 17$6,228 AUD

Retailer 5$6,512 AUD

Retailer 12$6,992 AUD

Retailer 14$7,176 AUD

Retailer 7$7,370 AUD

Retailer 11$7,507 AUD

Retailer 1$7,549 AUD

Retailer 8$7,901 AUD

Retailer 10$7,901 AUD

Retailer 2$8,171 AUD

Retailer 4$8,534 AUD

Retailer 13$8,582 AUD

Retailer 9$11,277 AUD

Retailer 15$12,471 AUD

30 data points across 19 retailers

29 retailers$5,924 AUD to $16,581 AUD

Cheapest Retailer

$5,924 AUD

$4,161 USD

Retailer 2

$5,936 AUD

$4,170 USD

View

Retailer 3

$5,982 AUD

$4,202 USD

View

Retailer 4

$6,152 AUD

$4,321 USD

View

Retailer 5

$6,153 AUD

$4,322 USD

View

Retailer 6

$6,228 AUD

$4,375 USD

View

Retailer 7

$6,512 AUD

$4,574 USD

View

Final sale: no returns

Retailer 8

$6,992 AUD

$4,911 USD

View

Retailer 9

$7,176 AUD

$5,041 USD

View

Retailer 10

$7,370 AUD

$5,177 USD

View

Retailer 11

$7,407 AUD

$5,203 USD

View

Price last confirmed 19 days ago

Retailer 12

$7,407 AUD

$5,203 USD

View

Price last confirmed 23 days ago

Retailer 13

$7,407 AUD

$5,203 USD

View

Price last confirmed 32 days ago

Retailer 14

$7,460 AUD

$5,240 USD

View

Price last confirmed 52 days ago

Retailer 15

$7,507 AUD

$5,273 USD

View

Price last confirmed 8 days ago

Retailer 16

$7,549 AUD

£4,175 GBP

View

Retailer 17

$7,901 AUD

$5,550 USD

View

Retailer 18

$7,901 AUD

$5,550 USD

View

Retailer 19

$8,171 AUD

$5,740 USD

View

Retailer 20

$8,314 AUD

$5,840 USD

View

Price last confirmed 54 days ago

B+

Retailer 21

$8,534 AUD

£4,720 GBP

View

Retailer 22

$8,547 AUD

$6,004 USD

View

Price last confirmed 22 days ago

B+

Retailer 23

$8,582 AUD

€5,741 EUR

View

B+

Retailer 24

$11,277 AUD

$7,922 USD

View

Retailer 25

$12,471 AUD

£6,898 GBP

View

Retailer 26

$13,302 AUD

$9,344 USD

View

Price last confirmed 60 days ago

Retailer 27

$13,675 AUD

$9,606 USD

View

Price last confirmed 28 days ago

Retailer 28

$15,621 AUD

£8,640 GBP

View

Most Expensive

Diamond Quarter

1.4SI2D7526DC67N · Oct 29

$16,581 AUD

£9,171 GBP

View

28 more retailers have this diamond

Prices start from $5,924 AUDSave up to $10,657 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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