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Marquise|Natural|GIA

1.02ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2557870993

Certificate GIA 2557870993

Diamond specifications and retailer prices

From $4,168 AUD
As of November 4, 2026
Save $5,286 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,454 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557870993. Listed at 20 retailers as of November 4, 2026, with prices from $4,168 to $9,454, a $5,286 spread on the same certified stone. NZ Jewellers lists it at $9,454. 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

1.02
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557870993
Dimensions10.40 × 5.24 × 3.24 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizeNone
Top View
10.40 mm5.24 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557870993
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.9%

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 4
Current: $9,454 AUD|Low: $4,311 AUD|High: $9,454 AUD|Avg: $6,292 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$4,311 AUD
Retailer 11$4,916 AUD
Retailer 10$5,106 AUD
Retailer 9$5,344 AUD
Retailer 2$5,581 AUD
Retailer 3$5,673 AUD
Retailer 7$5,811 AUD
Retailer 6$6,351 AUD
Retailer 4$6,624 AUD
Retailer 5$9,051 AUD
NZ Jewellers$9,454 AUD

45 data points across 11 retailers

20 retailers$4,168 AUD to $9,454 AUD

B+
Cheapest Retailer
-
$4,168 AUD
B+
Retailer 2
-
$4,311 AUD
View
Final sale: no returns
B+
Retailer 3
-
$4,347 AUD
View
B+
Retailer 4
-
$4,916 AUD
View
B
Retailer 5
-
$5,027 AUD
View
B
Retailer 6
-
$5,106 AUD
View
B+
Retailer 7
-
$5,344 AUD
View
B+
Retailer 8
-
$5,344 AUD
View
B
Retailer 9
-
$5,574 AUD
View
B
Retailer 10
-
$5,574 AUD
View
B+
Retailer 11
-
$5,581 AUD
View
B
Retailer 12
-
$5,673 AUD
View
B
Retailer 13
-
$5,763 AUD
View
Retailer 14
-
$5,811 AUD
View
Price last confirmed 30 days ago
Retailer 15
-
$6,146 AUD
View
Price last confirmed 15 days ago
B
Retailer 16
-
$6,351 AUD
View
B
Retailer 17
-
$6,378 AUD
View
B
Retailer 18
-
$6,624 AUD
View
B
Retailer 19
-
$9,051 AUD
View
Most Expensive
B
NZ Jewellers
54a6be71-36ed-481b-a989-ae3cde50d2ea · Nov 5
$9,454 AUD
$6,496 USD
View
19 more retailers have this diamond
Prices start from $4,168 AUDSave up to $5,286 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+
1.02ct Marquise
$4,168 AUD