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Marquise|Natural|GIA

1.03ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 6551278764

Certificate GIA 6551278764

Diamond specifications and retailer prices

From $1,627 AUD
As of November 6, 2026
Save $3,486 AUD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,113 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551278764. Listed at 17 retailers as of November 5, 2026, with prices from $1,627 to $5,113, a $3,486 spread on the same certified stone. NZ Jewellers lists it at $5,113. 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

1.03
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551278764
Dimensions10.35 × 5.16 × 3.31 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
10.35 mm5.16 mm1.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551278764
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.1%

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 6
Current: $2,144 AUD|Low: $1,627 AUD|High: $3,691 AUD|Avg: $2,397 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,627 AUD
Retailer 7$1,680 AUD
Retailer 1$2,144 AUD
Retailer 9$2,188 AUD
Retailer 2$2,193 AUD
Retailer 3$2,314 AUD
Retailer 5$2,314 AUD
Retailer 10$2,764 AUD
Retailer 4$2,903 AUD
Retailer 6$3,663 AUD

29 data points across 10 retailers

17 retailers$1,627 AUD to $5,113 AUD

A
Cheapest Retailer
-
$1,627 AUD
A
Retailer 2
-
$1,680 AUD
View
A
Retailer 3
-
$1,943 AUD
View
B+
Retailer 4
-
$2,096 AUD
View
Retailer 5
-
$2,096 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,144 AUD
View
A
Retailer 7
-
$2,188 AUD
View
B+
Retailer 8
-
$2,193 AUD
View
B+
Retailer 9
-
$2,236 AUD
View
B+
Retailer 10
-
$2,314 AUD
View
A
Retailer 11
-
$2,314 AUD
View
B+
Retailer 12
-
$2,418 AUD
View
B+
Retailer 13
-
$2,764 AUD
View
B+
Retailer 14
-
$2,903 AUD
View
B+
Retailer 15
-
$3,204 AUD
View
B+
Retailer 16
-
$3,663 AUD
View
Most Expensive
B
NZ Jewellers
bd7bb135-aa6a-4cf1-ab98-94b077c77aa8 · Nov 5
$5,113 AUD
$3,579 USD
View
16 more retailers have this diamond
Prices start from $1,627 AUDSave up to $3,486 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
1.03ct Marquise
$1,627 AUD