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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 7546429184

Certificate GIA 7546429184

Diamond specifications and retailer prices

From $5,791 AUD
As of November 5, 2026
Save $6,854 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,645 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 7546429184. Listed at 18 retailers as of November 5, 2026, with prices from $5,791 to $12,645, a $6,854 spread on the same certified stone. NZ Jewellers lists it at $12,645. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546429184
Dimensions11.14 × 4.87 × 3.20 mm
L/W Ratio2.29
Key to symbols
Feather, Natural
Top View
11.14 mm4.87 mm1.00 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7546429184
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $12,645 AUD|Low: $6,397 AUD|High: $12,645 AUD|Avg: $8,540 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 3$6,978 AUD
Retailer 2$7,334 AUD
Retailer 5$7,472 AUD
Retailer 8$7,561 AUD
Retailer 9$7,561 AUD
Retailer 12$7,561 AUD
Retailer 4$7,621 AUD
Retailer 11$8,552 AUD
Retailer 10$8,724 AUD
Retailer 6$9,224 AUD
Retailer 7$12,009 AUD
NZ Jewellers$12,645 AUD

32 data points across 12 retailers

18 retailers$5,791 AUD to $12,645 AUD

B+
Cheapest Retailer
-
$5,791 AUD
B
Retailer 2
-
$6,397 AUD
View
B+
Retailer 3
-
$6,594 AUD
View
B+
Retailer 4
-
$6,651 AUD
View
B
Retailer 5
-
$6,978 AUD
View
Final sale: no returns
B
Retailer 6
-
$7,093 AUD
View
B+
Retailer 7
-
$7,334 AUD
View
B+
Retailer 8
-
$7,472 AUD
View
Retailer 9
-
$7,561 AUD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$7,561 AUD
View
B
Retailer 11
-
$7,561 AUD
View
Retailer 12
-
$7,621 AUD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$7,765 AUD
View
B
Retailer 14
-
$8,552 AUD
View
B
Retailer 15
-
$8,724 AUD
View
B
Retailer 16
-
$9,224 AUD
View
B
Retailer 17
-
$12,009 AUD
View
Most Expensive
B
NZ Jewellers
1ebd57d6-a82f-4519-ba80-93abf7bda72b · Nov 5
$12,645 AUD
$8,852 USD
View
17 more retailers have this diamond
Prices start from $5,791 AUDSave up to $6,854 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.

B+
1.00ct Marquise
$5,791 AUD