Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7546359548

Certificate GIA 7546359548

Diamond specifications and retailer prices

From $16,107 CAD

A$17,739 AUD

As of November 1, 2026

Save $11,605 CAD (42%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $27,713 CAD at MOH London · As of November 1, 2026

View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546359548. Listed at 16 retailers as of November 1, 2026, with prices from $16,107 to $27,713, a $11,605 spread on the same certified stone. MOH London lists it at $27,713. 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

SymmetryVery Good

FluorescenceNone

Crown angle32.98°

Pavilion angle40.36°

OriginNatural

Grading LabGIA

CertificateGIA 7546359548

Dimensions11.45 × 6.22 × 3.71 mm

L/W Ratio1.84

Girdle conditionVery Thick

Key to symbols

Feather, Cloud, Pinpoint

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 7546359548

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: $27,713 CAD|Low: $15,601 CAD|High: $28,046 CAD|Avg: $21,319 CAD|-1.2%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 2, 2026

Retailer 8$16,107 CAD

Retailer 10$18,770 CAD

Retailer 4$18,938 CAD

Retailer 9$19,049 CAD

Retailer 7$19,586 CAD

Retailer 2$19,851 CAD

Retailer 5$21,218 CAD

Retailer 3$22,350 CAD

Retailer 6$26,068 CAD

MOH London$27,713 CAD

32 data points across 10 retailers

16 retailers$16,107 CAD to $27,713 CAD

B+

Cheapest Retailer

$16,107 CAD

A$17,739 AUD

Retailer 2

$17,954 CAD

$12,853 USD

View

Retailer 3

$18,172 CAD

$13,009 USD

View

Retailer 4

$18,770 CAD

$13,437 USD

View

Final sale: no returns

B+

Retailer 5

$18,938 CAD

£10,675 GBP

View

Retailer 6

$19,049 CAD

A$20,979 AUD

View

Price last confirmed 9 days ago

Retailer 7

$19,228 CAD

$13,765 USD

View

Retailer 8

$19,586 CAD

$14,021 USD

View

Retailer 9

$19,586 CAD

$14,021 USD

View

Price last confirmed 17 days ago

B+

Retailer 10

$19,851 CAD

£11,190 GBP

View

Retailer 11

$20,829 CAD

$14,911 USD

View

Retailer 12

$21,218 CAD

$15,189 USD

View

Retailer 13

$22,035 CAD

$15,774 USD

View

Price last confirmed 44 days ago

Retailer 14

$22,350 CAD

€15,238 EUR

View

Retailer 15

$26,068 CAD

ZAR 301,479 ZAR

View

Most Expensive

MOH London

C167A3398 · Nov 1

$27,713 CAD

£15,621 GBP

View

15 more retailers have this diamond

Prices start from $16,107 CADSave up to $11,605 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.

Similar diamonds

B+

1.51ct Marquise

$16,107 CAD