Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1538904520

Certificate GIA 1538904520

Diamond specifications and retailer prices

From $10,409 CAD

HK$58,100 HKD

As of October 29, 2026

Save $9,278 CAD (47%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: $19,687 CAD at NZ Jewellers · As of October 27, 2026

View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538904520. Listed at 25 retailers as of October 27, 2026, with prices from $10,409 to $19,687, a $9,278 spread on the same certified stone. NZ Jewellers lists it at $19,687. 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

1.51

Carat

Color

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle41.4°

OriginNatural

Grading LabGIA

CertificateGIA 1538904520

Dimensions7.31 × 7.26 × 4.57 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Crystal, Feather, Cloud, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 1538904520

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: $19,687 CAD|Low: $10,409 CAD|High: $19,687 CAD|Avg: $13,527 CAD

NZ Jewellers

Retailer 2

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Retailer 25

October 29, 2026

Retailer 21$10,409 CAD

Retailer 11$10,434 CAD

Retailer 3$10,570 CAD

Retailer 8$10,907 CAD

Retailer 10$10,957 CAD

Retailer 19$11,638 CAD

Retailer 2$11,703 CAD

Retailer 5$11,703 CAD

Retailer 7$11,953 CAD

Retailer 22$12,587 CAD

Retailer 13$12,631 CAD

Retailer 4$12,678 CAD

Retailer 25$12,874 CAD

Retailer 15$12,967 CAD

Retailer 6$13,366 CAD

Retailer 9$13,366 CAD

Retailer 12$13,814 CAD

Retailer 23$14,477 CAD

Retailer 14$14,633 CAD

Retailer 17$14,764 CAD

Retailer 20$15,095 CAD

Retailer 18$15,550 CAD

Retailer 16$17,046 CAD

Retailer 24$19,608 CAD

NZ Jewellers$19,687 CAD

18 data points across 25 retailers

25 retailers$10,409 CAD to $19,687 CAD

Cheapest Retailer

$10,409 CAD

HK$58,100 HKD

Retailer 2

$10,434 CAD

$7,455 USD

View

Retailer 3

$10,570 CAD

$7,552 USD

View

Retailer 4

$10,907 CAD

$7,793 USD

View

Retailer 5

$10,957 CAD

$7,829 USD

View

B+

Retailer 6

$11,638 CAD

$8,315 USD

View

B+

Retailer 7

$11,703 CAD

$8,362 USD

View

B+

Retailer 8

$11,703 CAD

$8,362 USD

View

Final sale: no returns

B+

Retailer 9

$11,953 CAD

$8,540 USD

View

B+

Retailer 10

$12,587 CAD

$8,993 USD

View

B+

Retailer 11

$12,631 CAD

£7,106 GBP

View

B+

Retailer 12

$12,678 CAD

$9,058 USD

View

B+

Retailer 13

$12,874 CAD

$9,198 USD

View

B+

Retailer 14

$12,967 CAD

A$14,253 AUD

View

B+

Retailer 15

$13,366 CAD

$9,550 USD

View

B+

Retailer 16

$13,366 CAD

$9,550 USD

View

B+

Retailer 17

$13,814 CAD

$9,870 USD

View

B+

Retailer 18

$14,477 CAD

£8,145 GBP

View

B+

Retailer 19

$14,633 CAD

€9,957 EUR

View

Retailer 20

$14,764 CAD

$10,549 USD

View

B+

Retailer 21

$15,095 CAD

$10,785 USD

View

B+

Retailer 22

$15,550 CAD

$11,110 USD

View

B+

Retailer 23

$17,046 CAD

ZAR 196,753 ZAR

View

Retailer 24

$19,608 CAD

£11,031 GBP

View

Most Expensive

NZ Jewellers

02c63f2b-ddb7-4ac2-8ebd-2141d1ef2b1a · Oct 27

$19,687 CAD

$14,066 USD

View

24 more retailers have this diamond

Prices start from $10,409 CADSave up to $9,278 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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1.51ct Round

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