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Marquise|Natural|GIA

1.00ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2554040159

Certificate GIA 2554040159

Diamond specifications and retailer prices

From $3,796 AUD
As of November 5, 2026
Save $4,356 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,152 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554040159. Listed at 15 retailers as of November 5, 2026, with prices from $3,796 to $8,152, a $4,356 spread on the same certified stone. NZ Jewellers lists it at $8,152. 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

1.00
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554040159
Dimensions10.02 × 5.22 × 3.24 mm
L/W Ratio1.92
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
10.02 mm5.22 mm1.00 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554040159
Side View
Table 60.0%CrownGirdlePavilionCulet: NDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,152 AUD|Low: $3,796 AUD|High: $8,152 AUD|Avg: $5,007 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$3,796 AUD
Retailer 12$3,912 AUD
Retailer 3$3,981 AUD
Retailer 8$4,238 AUD
Retailer 9$4,238 AUD
Retailer 10$4,401 AUD
Retailer 2$4,601 AUD
Retailer 5$4,841 AUD
Retailer 11$4,890 AUD
Retailer 7$5,475 AUD
Retailer 6$7,802 AUD
NZ Jewellers$8,152 AUD

40 data points across 12 retailers

15 retailers$3,796 AUD to $8,152 AUD

B+
Cheapest Retailer
-
$3,796 AUD
B+
Retailer 2
-
$3,912 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,981 AUD
View
Retailer 4
-
$4,238 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$4,238 AUD
View
B
Retailer 6
-
$4,279 AUD
View
B
Retailer 7
-
$4,401 AUD
View
B
Retailer 8
-
$4,483 AUD
View
B
Retailer 9
-
$4,601 AUD
View
B
Retailer 10
-
$4,841 AUD
View
B
Retailer 11
-
$4,890 AUD
View
Retailer 12
-
$5,429 AUD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$5,475 AUD
View
C
Retailer 14
-
$7,802 AUD
View
Most Expensive
C
NZ Jewellers
130f251f-21d6-4e17-b20d-36eb62164a44 · Nov 5
$8,152 AUD
$5,601 USD
View
14 more retailers have this diamond
Prices start from $3,796 AUDSave up to $4,356 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.

B+
1.00ct Marquise
$3,796 AUD