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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3545350624

Certificate GIA 3545350624

Diamond specifications and retailer prices

From $4,160 AUD
As of November 4, 2026
Save $5,615 AUD (57%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $9,775 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545350624. Listed at 27 retailers as of November 4, 2026, with prices from $4,160 to $9,775, a $5,615 spread on the same certified stone. NZ Jewellers lists it at $9,775. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.75°
Pavilion angle41.44°
OriginNatural
Grading LabGIA
CertificateGIA 3545350624
Dimensions10.02 × 5.25 × 3.30 mm
L/W Ratio1.91
Top View
10.02 mm5.25 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3545350624
Side View
Table 60.0%Crown 34.75°Girdle: MED-THKPavilion 41.44°Culet: 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 4
Current: $6,155 AUD|Low: $3,686 AUD|High: $9,497 AUD|Avg: $5,711 AUD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$4,160 AUD
Retailer 2$4,340 AUD
Retailer 8$4,423 AUD
Retailer 9$4,691 AUD
Retailer 3$5,084 AUD
Retailer 11$5,278 AUD
Retailer 4$5,650 AUD
Retailer 10$6,010 AUD
Retailer 1$6,155 AUD
Retailer 5$6,848 AUD
Retailer 7$9,384 AUD

46 data points across 11 retailers

27 retailers$4,160 AUD to $9,775 AUD

A
Cheapest Retailer
-
$4,160 AUD
A
Retailer 2
-
$4,311 AUD
View
A
Retailer 3
-
$4,340 AUD
View
A
Retailer 4
-
$4,421 AUD
View
A
Retailer 5
-
$4,423 AUD
View
A
Retailer 6
-
$4,513 AUD
View
A
Retailer 7
-
$4,665 AUD
View
B+
Retailer 8
-
$4,691 AUD
View
Final sale: no returns
B+
Retailer 9
-
$4,885 AUD
View
Retailer 10
-
$5,084 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$5,084 AUD
View
B+
Retailer 12
-
$5,278 AUD
View
Retailer 13
-
$5,340 AUD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$5,448 AUD
View
B+
Retailer 15
-
$5,528 AUD
View
B+
Retailer 16
-
$5,650 AUD
View
B+
Retailer 17
-
$5,657 AUD
View
B+
Retailer 18
-
$5,657 AUD
View
B+
Retailer 19
-
$5,843 AUD
View
B+
Retailer 20
-
$5,865 AUD
View
Retailer 21
-
$6,010 AUD
View
Price last confirmed 29 days ago
B+
Retailer 22
-
$6,017 AUD
View
B+
Retailer 23
-
$6,155 AUD
View
B+
Retailer 24
-
$6,848 AUD
View
B
Retailer 25
-
$8,108 AUD
View
B
Retailer 26
-
$9,384 AUD
View
Most Expensive
B
NZ Jewellers
e5088513-1b1a-4e49-8f0d-b3674c8ddcc2 · Nov 5
$9,775 AUD
$6,843 USD
View
26 more retailers have this diamond
Prices start from $4,160 AUDSave up to $5,615 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
$4,160 AUD