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Marquise|Natural|GIA

1.00ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6565660710

Certificate GIA 6565660710

Diamond specifications and retailer prices

From $3,528 AUD
As of November 4, 2026
Save $4,728 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,257 AUD at NZ Jewellers · As of November 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565660710. Listed at 12 retailers as of November 3, 2026, with prices from $3,528 to $8,257, a $4,728 spread on the same certified stone. NZ Jewellers lists it at $8,257. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565660710
Dimensions10.11 × 5.14 × 3.25 mm
L/W Ratio1.97
Culet sizeNone
Key to symbols
Cloud, Crystal, Cavity, Feather, Needle
Top View
10.11 mm5.14 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565660710
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.3%

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 4
Current: $8,257 AUD|Low: $3,510 AUD|High: $8,257 AUD|Avg: $4,996 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 8$3,528 AUD
Retailer 5$3,558 AUD
Retailer 3$3,761 AUD
Retailer 7$4,390 AUD
Retailer 4$4,613 AUD
Retailer 11$4,738 AUD
Retailer 10$4,921 AUD
Retailer 9$5,468 AUD
Retailer 6$5,471 AUD
Retailer 2$7,904 AUD
NZ Jewellers$8,257 AUD

8 data points across 11 retailers

12 retailers$3,528 AUD to $8,257 AUD

A
Cheapest Retailer
-
$3,528 AUD
A
Retailer 2
-
$3,558 AUD
View
B+
Retailer 3
-
$3,761 AUD
View
Final sale: no returns
B+
Retailer 4
-
$3,964 AUD
View
B+
Retailer 5
-
$4,390 AUD
View
B+
Retailer 6
-
$4,613 AUD
View
B+
Retailer 7
-
$4,738 AUD
View
B
Retailer 8
-
$4,921 AUD
View
B
Retailer 9
-
$5,468 AUD
View
B
Retailer 10
-
$5,471 AUD
View
B
Retailer 11
-
$7,904 AUD
View
Most Expensive
B
NZ Jewellers
1c69537c-7e7d-4c62-b597-c9dff015eeb5 · Nov 3
$8,257 AUD
$5,780 USD
View
11 more retailers have this diamond
Prices start from $3,528 AUDSave up to $4,728 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
$3,528 AUD