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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1565284218

Certificate GIA 1565284218

Diamond specifications and retailer prices

From $2,940 AUD
As of November 7, 2026
Save $3,439 AUD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,379 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565284218. Listed at 11 retailers as of November 5, 2026, with prices from $2,940 to $6,379, a $3,439 spread on the same certified stone. NZ Jewellers lists it at $6,379. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565284218
Dimensions9.75 × 5.27 × 3.29 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
9.75 mm5.27 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565284218
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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 7
Current: $6,379 AUD|Low: $2,940 AUD|High: $6,379 AUD|Avg: $3,812 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$2,940 AUD
Retailer 4$2,959 AUD
Retailer 8$3,051 AUD
Retailer 10$3,051 AUD
Retailer 11$3,192 AUD
Retailer 2$3,314 AUD
Retailer 9$3,521 AUD
Retailer 6$3,723 AUD
Retailer 5$4,144 AUD
Retailer 7$5,330 AUD
NZ Jewellers$6,379 AUD

31 data points across 11 retailers

11 retailers$2,940 AUD to $6,379 AUD

B+
Cheapest Retailer
-
$2,940 AUD
A
Retailer 2
-
$2,959 AUD
View
B+
Retailer 3
-
$3,051 AUD
View
Retailer 4
-
$3,051 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$3,192 AUD
View
B+
Retailer 6
-
$3,314 AUD
View
B+
Retailer 7
-
$3,521 AUD
View
B
Retailer 8
-
$3,723 AUD
View
B
Retailer 9
-
$4,144 AUD
View
B
Retailer 10
-
$5,330 AUD
View
Most Expensive
B
NZ Jewellers
217a42f4-c008-4506-814d-c2a88dac9aea · Nov 5
$6,379 AUD
$4,383 USD
View
10 more retailers have this diamond
Prices start from $2,940 AUDSave up to $3,439 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
$2,940 AUD