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Marquise|Natural|GIA

1.30ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3555423561

Certificate GIA 3555423561

Diamond specifications and retailer prices

From $8,732 AUD
As of November 5, 2026
Save $10,304 AUD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,036 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E 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 3555423561. Listed at 16 retailers as of November 5, 2026, with prices from $8,732 to $19,036, a $10,304 spread on the same certified stone. NZ Jewellers lists it at $19,036. 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555423561
Dimensions10.59 × 5.73 × 3.70 mm
L/W Ratio1.85
Key to symbols
Crystal, Feather, Needle, Knot
Top View
10.59 mm5.73 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555423561
Side View
Table 60.0%CrownGirdlePavilionCulet: NDepth 64.6%

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 5
Current: $19,036 AUD|Low: $8,732 AUD|High: $19,233 AUD|Avg: $12,231 AUD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 6$8,732 AUD
Retailer 17$8,994 AUD
Retailer 3$9,517 AUD
Retailer 16$9,535 AUD
Retailer 9$9,617 AUD
Retailer 13$10,311 AUD
Retailer 8$10,578 AUD
Retailer 10$10,627 AUD
Retailer 5$11,018 AUD
Retailer 2$11,042 AUD
Retailer 4$11,531 AUD
Retailer 12$11,898 AUD
Retailer 15$12,351 AUD
Retailer 14$12,539 AUD
Retailer 11$13,885 AUD
Retailer 7$16,111 AUD
NZ Jewellers$19,036 AUD

34 data points across 17 retailers

16 retailers$8,732 AUD to $19,036 AUD

A
Cheapest Retailer
-
$8,732 AUD
Retailer 2
-
$8,994 AUD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$9,517 AUD
View
Final sale: no returns
A
Retailer 4
-
$9,535 AUD
View
Retailer 5
-
$9,617 AUD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$10,311 AUD
View
Retailer 7
-
$10,578 AUD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
$10,627 AUD
View
Retailer 9
-
$11,018 AUD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$11,042 AUD
View
B+
Retailer 11
-
$11,531 AUD
View
B+
Retailer 12
-
$11,898 AUD
View
Retailer 13
-
$12,539 AUD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$13,885 AUD
View
Retailer 15
-
$16,111 AUD
View
Price last confirmed 16 days ago
Most Expensive
B
NZ Jewellers
73833269-43ef-4317-bcd9-7e644b338a60 · Nov 5
$19,036 AUD
$13,326 USD
View
15 more retailers have this diamond
Prices start from $8,732 AUDSave up to $10,304 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
1.30ct Marquise
$8,732 AUD