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Marquise|Natural|GIA

1.02ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 1246037717

Certificate GIA 1246037717

Diamond specifications and retailer prices

From $5,020 AUD
As of November 4, 2026
Save $4,074 AUD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,475 AUD at NZ Jewellers · As of October 3, 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 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 1246037717. Listed at 12 retailers as of November 2, 2026, with a 81% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1246037717
Dimensions10.22 × 5.37 × 3.20 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Pinpoint
Top View
10.22 mm5.37 mm1.02 ctE / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1246037717
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.5%

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 4
Current: $9,475 AUD|Low: $4,601 AUD|High: $10,291 AUD|Avg: $6,555 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
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$5,020 AUD
Retailer 11$5,235 AUD
Retailer 2$5,275 AUD
Retailer 4$5,438 AUD
Retailer 6$5,438 AUD
Retailer 8$5,475 AUD
Retailer 5$5,831 AUD
Retailer 14$5,865 AUD
Retailer 15$5,900 AUD
Retailer 3$6,275 AUD
Retailer 12$6,357 AUD
Retailer 7$6,385 AUD
Retailer 9$6,638 AUD
Retailer 10$9,094 AUD
NZ Jewellers$9,475 AUD

25 data points across 15 retailers

12 retailers$5,020 AUD to $9,094 AUD

A
Cheapest Retailer
-
$5,020 AUD
Final sale: no returns
B+
Retailer 2
-
$5,235 AUD
View
A
Retailer 3
-
$5,275 AUD
View
Retailer 4
-
$5,438 AUD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$5,475 AUD
View
Retailer 6
-
$5,831 AUD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$5,865 AUD
View
Retailer 8
-
$6,275 AUD
View
Price last confirmed 33 days ago
Retailer 9
-
$6,357 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$6,638 AUD
View
B
Retailer 11
-
$9,094 AUD
View
Most Expensive
NZ Jewellers
63923f3f-e036-4e63-8bf5-3b18edc4c98f · Oct 3
$9,475 AUD
$6,633 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from $5,020 AUDSave up to $4,074 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
1.02ct Marquise
$5,020 AUD