Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7553357466

Certificate GIA 7553357466

Diamond specifications and retailer prices

From $14,512 AUD

$10,170 USD

As of November 1, 2026

Save $11,574 AUD (44%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: $26,085 AUD at NZ Jewellers · As of October 30, 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 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 7553357466. Listed at 26 retailers as of October 30, 2026, with prices from $14,512 to $26,085, a $11,574 spread on the same certified stone. NZ Jewellers lists it at $26,085. 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

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 7553357466

Dimensions11.87 × 6.01 × 3.45 mm

L/W Ratio1.98

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Crystal, Feather, Cavity, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 7553357466

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1

Current: $26,085 AUD|Low: $14,512 AUD|High: $26,085 AUD|Avg: $18,255 AUD

NZ Jewellers

Retailer 2

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Retailer 25

November 2, 2026

Retailer 6$14,512 AUD

Retailer 11$14,522 AUD

Retailer 22$14,702 AUD

Retailer 7$14,938 AUD

Retailer 2$14,976 AUD

Retailer 24$15,446 AUD

Retailer 12$15,650 AUD

Retailer 3$15,652 AUD

Retailer 9$16,699 AUD

Retailer 19$16,921 AUD

Retailer 5$16,956 AUD

Retailer 23$17,013 AUD

Retailer 25$17,217 AUD

Retailer 16$17,287 AUD

Retailer 17$17,632 AUD

Retailer 4$18,250 AUD

Retailer 15$18,250 AUD

Retailer 14$18,637 AUD

Retailer 13$18,843 AUD

Retailer 8$18,864 AUD

Retailer 18$19,081 AUD

Retailer 10$19,564 AUD

Retailer 21$22,994 AUD

Retailer 20$24,444 AUD

NZ Jewellers$26,085 AUD

36 data points across 25 retailers

26 retailers$14,512 AUD to $26,085 AUD

Cheapest Retailer

$14,512 AUD

$10,170 USD

Retailer 2

$14,522 AUD

$10,177 USD

View

Retailer 3

$14,702 AUD

View

B+

Retailer 4

$14,938 AUD

$10,469 USD

View

Retailer 5

$14,976 AUD

$10,495 USD

View

B+

Retailer 6

$15,446 AUD

$10,825 USD

View

B+

Retailer 7

$15,650 AUD

$10,968 USD

View

Final sale: no returns

B+

Retailer 8

$15,652 AUD

$10,969 USD

View

B+

Retailer 9

$16,699 AUD

$11,703 USD

View

B+

Retailer 10

$16,921 AUD

£9,337 GBP

View

B+

Retailer 11

$16,956 AUD

$11,883 USD

View

Retailer 12

$17,013 AUD

View

Price last confirmed 9 days ago

B+

Retailer 13

$17,217 AUD

$12,066 USD

View

B+

Retailer 14

$17,287 AUD

$12,115 USD

View

Retailer 15

$17,632 AUD

$12,357 USD

View

Price last confirmed 10 days ago

Retailer 16

$18,250 AUD

$12,790 USD

View

Retailer 17

$18,250 AUD

$12,790 USD

View

Retailer 18

$18,637 AUD

$13,061 USD

View

B+

Retailer 19

$18,843 AUD

€12,577 EUR

View

Retailer 20

$18,864 AUD

$13,220 USD

View

B+

Retailer 21

$19,081 AUD

$13,373 USD

View

B+

Retailer 22

$19,564 AUD

$13,711 USD

View

Retailer 23

$19,967 AUD

$13,993 USD

View

Price last confirmed 52 days ago

Retailer 24

$22,994 AUD

ZAR 260,329 ZAR

View

Retailer 25

$24,444 AUD

£13,489 GBP

View

Most Expensive

NZ Jewellers

90d1e83d-884f-47a5-b97e-aee151af1695 · Oct 30

$26,085 AUD

$18,281 USD

View

25 more retailers have this diamond

Prices start from $14,512 AUDSave up to $11,574 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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