Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6502436101

Certificate GIA 6502436101

Diamond specifications and retailer prices

From $4,438 CAD

$3,171 USD

As of October 29, 2026

Save $7,375 CAD (62%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: $11,813 CAD at Diamond Quarter · As of October 28, 2026

View at Diamond Quarter

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502436101. Listed at 27 retailers as of October 28, 2026, with prices from $4,438 to $11,813, a $7,375 spread on the same certified stone. Diamond Quarter lists it at $11,813. 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

1.09

Carat

Color

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33°

Pavilion angle41.8°

OriginNatural

Grading LabGIA

CertificateGIA 6502436101

Dimensions6.67 × 6.65 × 4.06 mm

L/W Ratio1.00

Star length45%

Lower girdle75%

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6502436101

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 29

Current: $5,984 CAD|Low: $4,438 CAD|High: $10,096 CAD|Avg: $6,042 CAD|+1.1%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

October 29, 2026

Retailer 7$4,438 CAD

Retailer 16$4,749 CAD

Retailer 3$4,936 CAD

Retailer 15$5,116 CAD

Retailer 13$5,343 CAD

Retailer 8$5,404 CAD

Retailer 1$5,984 CAD

Retailer 4$6,004 CAD

Retailer 14$6,004 CAD

Retailer 2$6,130 CAD

Retailer 11$6,214 CAD

Retailer 6$6,362 CAD

Retailer 5$6,680 CAD

Retailer 12$6,692 CAD

Retailer 9$7,189 CAD

Retailer 10$9,886 CAD

43 data points across 16 retailers

27 retailers$4,438 CAD to $11,813 CAD

Cheapest Retailer

$4,438 CAD

$3,171 USD

Retailer 2

$4,749 CAD

$3,393 USD

View

B+

Retailer 3

$4,906 CAD

$3,505 USD

View

Price last confirmed 24 days ago

B+

Retailer 4

$4,936 CAD

$3,527 USD

View

Final sale: no returns

B+

Retailer 5

$5,116 CAD

$3,655 USD

View

B+

Retailer 6

$5,343 CAD

$3,818 USD

View

B+

Retailer 7

$5,349 CAD

$3,822 USD

View

B+

Retailer 8

$5,349 CAD

$3,822 USD

View

B+

Retailer 9

$5,404 CAD

$3,861 USD

View

Price last confirmed 52 days ago

B+

Retailer 10

$5,404 CAD

$3,861 USD

View

Price last confirmed 31 days ago

B+

Retailer 11

$5,555 CAD

$3,969 USD

View

B+

Retailer 12

$5,984 CAD

£3,366 GBP

View

B+

Retailer 13

$6,004 CAD

$4,290 USD

View

B+

Retailer 14

$6,004 CAD

$4,290 USD

View

B+

Retailer 15

$6,130 CAD

$4,380 USD

View

B+

Retailer 16

$6,214 CAD

$4,440 USD

View

B+

Retailer 17

$6,235 CAD

$4,455 USD

View

Price last confirmed 53 days ago

B+

Retailer 18

$6,235 CAD

$4,455 USD

View

Price last confirmed 30 days ago

B+

Retailer 19

$6,362 CAD

A$6,994 AUD

View

Price last confirmed 20 days ago

B+

Retailer 20

$6,680 CAD

$4,773 USD

View

B+

Retailer 21

$6,692 CAD

£3,765 GBP

View

B+

Retailer 22

$7,189 CAD

ZAR 82,983 ZAR

View

Retailer 23

$9,886 CAD

£5,562 GBP

View

Retailer 24

$10,286 CAD

$7,349 USD

View

Retailer 25

$10,392 CAD

$7,425 USD

View

Price last confirmed 58 days ago

Retailer 26

$10,392 CAD

$7,425 USD

View

Price last confirmed 31 days ago

Most Expensive

Diamond Quarter

1.09SI1E65017677N · Oct 28

$11,813 CAD

£6,646 GBP

View

26 more retailers have this diamond

Prices start from $4,438 CADSave up to $7,375 CAD

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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