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Marquise|Natural|GIA

0.90ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 3555348775

Certificate GIA 3555348775

Diamond specifications and retailer prices

From $2,745 AUD
$1,928 USD
As of October 29, 2026
Save $3,276 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,930 AUD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-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 3555348775. Listed at 20 retailers as of October 29, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.90
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555348775
Dimensions9.16 × 5.03 × 3.16 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
9.16 mm5.03 mm0.90 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555348775
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

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: Oct 29
Current: $6,661 AUD|Low: $2,733 AUD|High: $6,766 AUD|Avg: $4,008 AUD|-1.6%
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
November 2, 2026
Retailer 13$2,745 AUD
Retailer 2$2,826 AUD
Retailer 11$2,887 AUD
Retailer 14$3,130 AUD
Retailer 3$3,153 AUD
Retailer 5$3,186 AUD
Retailer 8$3,327 AUD
Retailer 10$3,405 AUD
Retailer 6$3,676 AUD
Retailer 9$3,904 AUD
Retailer 12$4,616 AUD
Retailer 4$5,511 AUD
Retailer 7$6,020 AUD
NZ Jewellers$6,661 AUD

25 data points across 14 retailers

20 retailers$2,745 AUD to $6,020 AUD

A
Cheapest Retailer
-
$2,745 AUD
$1,928 USD
A
Retailer 2
-
$2,826 AUD
$1,985 USD
View
A
Retailer 3
-
$2,887 AUD
$2,028 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,130 AUD
$2,199 USD
View
B+
Retailer 5
-
$3,153 AUD
$2,215 USD
View
Retailer 6
-
$3,186 AUD
$2,238 USD
View
Price last confirmed 15 days ago
Retailer 7
-
$3,186 AUD
$2,238 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$3,316 AUD
$2,329 USD
View
Price last confirmed 42 days ago
B+
Retailer 9
-
$3,327 AUD
$2,337 USD
View
Retailer 10
-
$3,333 AUD
$2,341 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$3,405 AUD
£1,883 GBP
View
Retailer 12
-
$3,676 AUD
$2,582 USD
View
Price last confirmed 14 days ago
Retailer 13
-
$3,825 AUD
$2,687 USD
View
Price last confirmed 42 days ago
B+
Retailer 14
-
$3,904 AUD
€2,612 EUR
View
Retailer 15
-
$3,987 AUD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$4,616 AUD
ZAR 52,387 ZAR
View
B
Retailer 17
-
$5,511 AUD
£3,048 GBP
View
B
Retailer 18
-
$6,020 AUD
£3,330 GBP
View
Retailer 19
-
$6,661 AUD
$4,679 USD
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
e9318d30-70d3-40bf-8375-ff2e1d6c9a9a · Sep 20
$6,930 AUD
$4,868 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $2,745 AUDSave up to $3,276 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
0.90ct Marquise
$2,745 AUD