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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6552638482

Certificate GIA 6552638482

Diamond specifications and retailer prices

From $2,458 AUD
As of November 6, 2026
Save $4,375 AUD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,833 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 I 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 6552638482. Listed at 15 retailers as of November 5, 2026, with prices from $2,458 to $6,833, a $4,375 spread on the same certified stone. NZ Jewellers lists it at $6,833. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552638482
Dimensions9.55 × 4.89 × 3.38 mm
L/W Ratio1.95
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.55 mm4.89 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552638482
Side View
Table 63.0%CrownGirdle: XTKPavilionCulet: NoneDepth 69.1%

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 6
Current: $6,833 AUD|Low: $2,458 AUD|High: $6,833 AUD|Avg: $3,728 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 10$2,458 AUD
Retailer 7$2,607 AUD
Retailer 4$3,016 AUD
Retailer 2$3,214 AUD
Retailer 3$3,269 AUD
Retailer 5$3,410 AUD
Retailer 12$3,420 AUD
Retailer 8$3,586 AUD
Retailer 11$3,771 AUD
Retailer 6$4,058 AUD
Retailer 9$5,726 AUD
NZ Jewellers$6,833 AUD

28 data points across 12 retailers

15 retailers$2,458 AUD to $6,833 AUD

A
Cheapest Retailer
-
$2,458 AUD
A
Retailer 2
-
$2,607 AUD
View
B+
Retailer 3
-
$2,982 AUD
View
B+
Retailer 4
-
$3,016 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,214 AUD
View
A
Retailer 6
-
$3,269 AUD
View
B+
Retailer 7
-
$3,304 AUD
View
B+
Retailer 8
-
$3,410 AUD
View
B+
Retailer 9
-
$3,420 AUD
View
B+
Retailer 10
-
$3,573 AUD
View
B+
Retailer 11
-
$3,586 AUD
View
B+
Retailer 12
-
$3,771 AUD
View
B+
Retailer 13
-
$4,058 AUD
View
B
Retailer 14
-
$5,726 AUD
View
Most Expensive
B
NZ Jewellers
d60821ea-313c-472b-a024-58fc69bba7d5 · Nov 5
$6,833 AUD
$4,695 USD
View
14 more retailers have this diamond
Prices start from $2,458 AUDSave up to $4,375 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
1.00ct Marquise
$2,458 AUD