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Marquise|Natural|GIA

0.90ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 2558430858

Certificate GIA 2558430858

Diamond specifications and retailer prices

From $2,338 AUD
HK$12,800 HKD
As of November 1, 2026
Save $3,624 AUD (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,561 AUD at NZ Jewellers · As of October 24, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558430858. Listed at 18 retailers as of November 1, 2026, with a 155% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558430858
Dimensions9.00 × 4.98 × 3.36 mm
L/W Ratio1.81
Girdle conditionFaceted
Top View
9.00 mm4.98 mm0.90 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558430858
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.5%

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 1
Current: $6,561 AUD|Low: $2,338 AUD|High: $6,644 AUD|Avg: $3,831 AUD|-1.2%
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
November 2, 2026
Retailer 13$2,338 AUD
Retailer 2$2,713 AUD
Retailer 12$2,844 AUD
Retailer 6$2,855 AUD
Retailer 3$2,860 AUD
Retailer 5$2,882 AUD
Retailer 11$3,028 AUD
Retailer 16$3,082 AUD
Retailer 14$3,212 AUD
Retailer 8$3,300 AUD
Retailer 10$4,089 AUD
Retailer 4$4,628 AUD
Retailer 7$4,653 AUD
Retailer 15$5,427 AUD
Retailer 9$5,961 AUD
NZ Jewellers$6,561 AUD

22 data points across 16 retailers

18 retailers$2,338 AUD to $5,961 AUD

A
Cheapest Retailer
-
$2,338 AUD
HK$12,800 HKD
B+
Retailer 2
-
$2,713 AUD
€1,811 EUR
View
B+
Retailer 3
-
$2,844 AUD
$1,993 USD
View
B+
Retailer 4
-
$2,855 AUD
$2,001 USD
View
B+
Retailer 5
-
$2,860 AUD
$2,004 USD
View
Final sale: no returns
B+
Retailer 6
-
$2,882 AUD
$2,020 USD
View
B+
Retailer 7
-
$3,028 AUD
£1,671 GBP
View
B+
Retailer 8
-
$3,082 AUD
$2,160 USD
View
B+
Retailer 9
-
$3,212 AUD
$2,251 USD
View
Retailer 10
-
$3,300 AUD
SGD 3,125 SGD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$3,532 AUD
View
Retailer 12
-
$3,989 AUD
View
Price last confirmed 27 days ago
B
Retailer 13
-
$4,089 AUD
€2,729 EUR
View
B
Retailer 14
-
$4,628 AUD
ZAR 52,401 ZAR
View
Retailer 15
-
$4,653 AUD
$3,261 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$5,427 AUD
£2,995 GBP
View
B
Retailer 17
-
$5,961 AUD
£3,290 GBP
View
Most Expensive
NZ Jewellers
e14e13ac-5b3d-41af-a9a5-f5fdf6839704 · Oct 24
$6,561 AUD
$4,598 USD
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $2,338 AUDSave up to $3,624 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
$2,338 AUD