Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6551543873

Certificate GIA 6551543873

Diamond specifications and retailer prices

From $13,236 CAD

$9,472 USD

As of November 1, 2026

Save $10,541 CAD (44%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $23,777 CAD at NZ Jewellers · As of November 3, 2026

View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551543873. Listed at 17 retailers as of November 1, 2026, with prices from $13,236 to $23,777, a $10,541 spread on the same certified stone. NZ Jewellers lists it at $23,777. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

Crown angle36.97°

Pavilion angle41.43°

OriginNatural

Grading LabGIA

CertificateGIA 6551543873

Dimensions11.30 × 5.97 × 3.78 mm

L/W Ratio1.89

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 6551543873

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: Nov 1

Current: $15,411 CAD|Low: $15,283 CAD|High: $22,549 CAD|Avg: $17,533 CAD|-0.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

November 3, 2026

Retailer 1$15,411 CAD

Retailer 9$15,455 CAD

Retailer 8$15,693 CAD

Retailer 7$15,864 CAD

Retailer 2$16,074 CAD

Retailer 6$16,358 CAD

Retailer 3$17,970 CAD

Retailer 5$20,959 CAD

Retailer 4$22,281 CAD

43 data points across 9 retailers

17 retailers$13,236 CAD to $23,777 CAD

B+

Cheapest Retailer

$13,236 CAD

$9,472 USD

B+

Retailer 2

$14,107 CAD

$10,095 USD

View

Retailer 3

$14,266 CAD

$10,209 USD

View

Price last confirmed 18 days ago

Retailer 4

$14,385 CAD

$10,294 USD

View

Price last confirmed 11 days ago

B+

Retailer 5

$15,218 CAD

$10,890 USD

View

B+

Retailer 6

$15,411 CAD

£8,683 GBP

View

B+

Retailer 7

$15,455 CAD

$11,060 USD

View

Retailer 8

$15,693 CAD

$11,230 USD

View

Retailer 9

$15,864 CAD

A$17,466 AUD

View

Price last confirmed 30 days ago

B+

Retailer 10

$16,074 CAD

£9,057 GBP

View

B+

Retailer 11

$16,358 CAD

$11,706 USD

View

Retailer 12

$17,832 CAD

$12,761 USD

View

Retailer 13

$17,970 CAD

€12,247 EUR

View

Retailer 14

$18,768 CAD

$13,431 USD

View

Price last confirmed 11 days ago

Retailer 15

$20,959 CAD

ZAR 242,301 ZAR

View

Retailer 16

$22,281 CAD

£12,555 GBP

View

Most Expensive

NZ Jewellers

04e58fd2-03b5-4f0a-8a02-4f720a580b04 · Nov 3

$23,777 CAD

$17,015 USD

View

16 more retailers have this diamond

Prices start from $13,236 CADSave up to $10,541 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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B+

1.51ct Marquise

$13,236 CAD