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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 5546879204

Certificate GIA 5546879204

Diamond specifications and retailer prices

From $7,028 AUD
As of November 3, 2026
Save $5,894 AUD (46%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,922 AUD 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546879204. Listed at 6 retailers as of November 3, 2026, with prices from $7,028 to $12,922, a $5,894 spread on the same certified stone. NZ Jewellers lists it at $12,922. 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
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.99°
Pavilion angle41.37°
OriginNatural
Grading LabGIA
CertificateGIA 5546879204
Dimensions10.80 × 5.91 × 4.00 mm
L/W Ratio1.83
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
10.80 mm5.91 mm1.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5546879204
Side View
Table 58.0%Crown 39.99°Girdle: ThickPavilion 41.37°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
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: Nov 3
Current: $12,922 AUD|Low: $6,922 AUD|High: $13,726 AUD|Avg: $9,578 AUD|-5.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 2$7,028 AUD
Retailer 3$7,638 AUD
Retailer 5$7,725 AUD
Retailer 6$7,725 AUD
Retailer 4$12,304 AUD
NZ Jewellers$12,922 AUD

40 data points across 6 retailers

6 retailers$7,028 AUD to $12,922 AUD

A
Cheapest Retailer
-
$7,028 AUD
B+
Retailer 2
-
$7,638 AUD
View
B+
Retailer 3
-
$7,725 AUD
View
B+
Retailer 4
-
$7,725 AUD
View
B
Retailer 5
-
$12,304 AUD
View
Most Expensive
B
NZ Jewellers
8db15d66-5632-4570-981f-c8cd081f8308 · Nov 3
$12,922 AUD
$8,879 USD
View
5 more retailers have this diamond
Prices start from $7,028 AUDSave up to $5,894 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.

A
1.51ct Marquise
$7,028 AUD