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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 1565103744

Certificate GIA 1565103744

Diamond specifications and retailer prices

From $3,674 AUD
As of November 4, 2026
Save $4,830 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,504 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565103744. Listed at 14 retailers as of November 4, 2026, with prices from $3,674 to $8,504, a $4,830 spread on the same certified stone. NZ Jewellers lists it at $8,504. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565103744
Dimensions10.05 × 5.14 × 3.14 mm
L/W Ratio1.96
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
10.05 mm5.14 mm1.00 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565103744
Side View
Table 59.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 61.2%

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: $8,504 AUD|Low: $3,628 AUD|High: $8,560 AUD|Avg: $5,237 AUD|-0.7%
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$3,674 AUD
Retailer 6$3,690 AUD
Retailer 9$4,271 AUD
Retailer 3$4,505 AUD
Retailer 4$4,551 AUD
Retailer 2$4,800 AUD
Retailer 11$4,881 AUD
Retailer 10$5,068 AUD
Retailer 13$5,118 AUD
Retailer 12$5,217 AUD
Retailer 5$5,633 AUD
Retailer 7$8,141 AUD
NZ Jewellers$8,504 AUD

40 data points across 13 retailers

14 retailers$3,674 AUD to $8,504 AUD

A
Cheapest Retailer
-
$3,674 AUD
A
Retailer 2
-
$3,690 AUD
View
A
Retailer 3
-
$4,118 AUD
View
Retailer 4
-
$4,271 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$4,505 AUD
View
Final sale: no returns
A
Retailer 6
-
$4,551 AUD
View
A
Retailer 7
-
$4,800 AUD
View
A
Retailer 8
-
$4,881 AUD
View
B+
Retailer 9
-
$5,068 AUD
View
Retailer 10
-
$5,118 AUD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$5,217 AUD
View
B+
Retailer 12
-
$5,633 AUD
View
B
Retailer 13
-
$8,141 AUD
View
Most Expensive
B
NZ Jewellers
6020ebf8-d949-4322-a350-7e4c8af508f7 · Nov 5
$8,504 AUD
$5,953 USD
View
13 more retailers have this diamond
Prices start from $3,674 AUDSave up to $4,830 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
$3,674 AUD