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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1563236191

Certificate GIA 1563236191

Diamond specifications and retailer prices

From $2,384 AUD
As of November 6, 2026
Save $4,058 AUD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,442 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 1563236191. Listed at 13 retailers as of November 5, 2026, with prices from $2,384 to $6,442, a $4,058 spread on the same certified stone. NZ Jewellers lists it at $6,442. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563236191
Dimensions10.03 × 5.28 × 3.32 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
10.03 mm5.28 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563236191
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

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: $6,442 AUD|Low: $2,365 AUD|High: $6,739 AUD|Avg: $3,519 AUD|-4.4%
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
November 6, 2026
Retailer 8$2,384 AUD
Retailer 2$2,390 AUD
Retailer 12$2,809 AUD
Retailer 4$2,844 AUD
Retailer 6$3,029 AUD
Retailer 11$3,081 AUD
Retailer 5$3,109 AUD
Retailer 10$3,224 AUD
Retailer 3$3,312 AUD
Retailer 13$3,362 AUD
Retailer 9$3,556 AUD
Retailer 7$5,384 AUD
NZ Jewellers$6,442 AUD

29 data points across 13 retailers

13 retailers$2,384 AUD to $6,442 AUD

A
Cheapest Retailer
-
$2,384 AUD
A
Retailer 2
-
$2,390 AUD
View
Retailer 3
-
$2,809 AUD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$2,844 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,029 AUD
View
A
Retailer 6
-
$3,081 AUD
View
A
Retailer 7
-
$3,109 AUD
View
A
Retailer 8
-
$3,224 AUD
View
Retailer 9
-
$3,312 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$3,362 AUD
View
A
Retailer 11
-
$3,556 AUD
View
B
Retailer 12
-
$5,384 AUD
View
Most Expensive
B
NZ Jewellers
62d3d143-62ec-48a2-b605-e415e9463bd0 · Nov 5
$6,442 AUD
$4,426 USD
View
12 more retailers have this diamond
Prices start from $2,384 AUDSave up to $4,058 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
$2,384 AUD